HHB comm DRM85 User Manual

Introduction

Thank you for purchasing this HHB FlashMic.

This manual provides all the information you should need to use your FlashMic easily
and effectively. We recommend you read through the manual carefully before using
your FlashMic for the first time, and to keep it in a safe place for future reference.

Product Details

Owner:

Company:

Date of Purchase:

Serial Number:

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Safety Information

While the HHB FlashMic has been designed to be robust in normal use, always
remember that it is both a high-quality professional microphone and a delicate
electronic instrument. As such, a degree of care should be exercised in its
handling.

Take care not to subject the FlashMic to mechanical impact, e.g. dropping

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it or knocking it on hard surfaces.

Use care when opening the battery compartment. This operation is

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designed to be performed by hand; do not use sharp tools of any kind.

Use the connectors and jogswitch control on the base of the FlashMic with

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care. Ensure that any cables connected are not subject to strain.

Only dispose of used batteries in accordance with local environmental

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and/or recycling guidelines.

Only clean the FlashMic with a damp cloth. Do not use solvent or abrasive

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cleaners of any kind.

What’s in the box

Please check the list below against the contents of the packaging. If any items are
missing or damaged, contact the HHB dealer or distributor that you purchased the
unit from at once.

DRM85 FlashMic Microphone

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Microphone pouch

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Mic clip with standard thread (5/8” 27TPI), plus 3/8” adaptor

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(16TPI BSW)

1.5m. USB cable, Type A to 5-pin Mini-B

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2 x AA alkaline batteries

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CD-ROM with FlashMic Manager software (both Windows™ and Mac™

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versions)

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Contents

Introduction 1

Safety Information 2

What’s in the box 2

FlashMic Features 4

FlashMic Description 5

FlashMic Display Window 6

Batteries 7

Inserting Batteries 7
Battery Management 8
Battery Status Indicator 8

Using the FlashMic 9

Jogswitch Description 9
Switching The FlashMic On 10
Making a Recording 11
PreRecord Buffer (Introduction) 12
Record Lock 12
Monitoring 12
Adjusting Record Level 13
Replaying Tracks 13
Markers 14
Deleting a Track 14
File Transfer 14

Transfer Using FlashMic Manager 15
Direct Transfer to a Computer 16

FlashMic Menu System 17

Using the Menus 17
Preset Menu 18
Recording Mode Menu 19
Recording Level Menu 20
Hi-pass Filter Menu 21
Battery Type Menu 21
Delete Menu 22
Clock Set Menu 23

FlashMic Manager 24

Installing FlashMic Manager on a PC 24
Installing FlashMic Manager on a Mac 25
Using FlashMic Manager 26
Configuration Files and Presets 27
Using the Default Configuration 28
FlashMic Manager Window - Features 29

Preset Information 29

Other Features and Functions 31
Connecting the FlashMic 33
Creating a New Configuration File 34
Modifying an Existing Configuration File 34
Creating a Personalised Defaults File 35
Uploading a Configuration File to the FlashMic 35
PreRecord Buffer 36

FlashMic File Names 36

Filename Structure 37

Reformatting the Memory 38

Firmware Updates 39

Specifications 40

Polar Diagram and Frequency Response Curve of Microphone Head 41

Notification 42

4

FlashMic Features

Your FlashMic combines a professional-quality, omni-directional condenser
microphone with an internal digital audio recorder in a single self-contained, self­powered unit. An extremely simple set of controls make it suitable for completely
non-technical users; alternatively, more experienced recordists can access a wide
range of additional functionality through menu-based pages on the FlashMic’s LCD
display.

Retrieval of recordings is via the FlashMic’s USB port; the stored sound files are
transferred to a computer as .wav files in either linear or compressed (MPEG 2 Layer

1) formats. Transfer is either by using the supplied FlashMic Manager software, or
by standard drag-and-drop file handling.
Think of your FlashMic as the audio equivalent of a digital camera. Just as you use
a digital camera to quickly and conveniently record high-quality visual images for
subsequent transfer to a computer, so you can use FlashMic to capture sound. Just
as pictures can be subsequently edited, stored, e-mailed, deleted, or whatever – so
you can now manipulate recorded audio in the same ways.

The FlashMic is ideal for use by journalists and reporters for news-gathering and
interviews, by business organisations, public institutions – any situation where a
quick and convenient method of voice recording is required.

Some of the main features of the FlashMic are as follows:

Linear or compressed (using MPEG 1 Layer 2 compression) digital

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audio recordings as .wav files.

Recording time up to 18hrs (file format and sample rate dependent).

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Built-in headphone amplifier for monitoring, with adjustable level.

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Uses 2 x AA cells – either alkaline or rechargeable.

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Modes of operation to suit both technical and non-technical users.

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Adjustable pre-record buffer of up to 10 seconds.

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Rapid file transfer via USB to PC or Mac.

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9 internal presets for storing different FlashMic configurations.

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Adjustable recording level or fixed AGC mode, with bargraph display.

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Remaining Time display.

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Replay of last or an earlier recording via monitor output.

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USB

MENU

PHONES

5

FlashMic Description

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3

4

1

10

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98

1

2

3

4

5

6

Protective basket (windshield) over mic capsule

FlashMic body

LCD display – see FlashMic Display Window

Main operating control section

REC button (G)

PLAY button (H)

5

76

10

11

7

8

9

MENU/STOP button (M)

Multi-function jogswitch control - see Jogswitch Description

Record mode LED (REC LED)

USB connector (5 pin Mini-B)

PHONES: monitor output (3.5mm 3-pole jack socket)

00:12:12

Rec

Play

6

FlashMic Display Window

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13 14 15

17

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6-character alphanumeric display

12

4-segment battery status indicator

13

REC flag – indicates FlashMic is in record mode.

14

PLAY flag – indicates FlashMic is in replay mode.

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16-segment bargraph meter – provides an indication of recording level.

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Display backlight

17

7

Batteries

The FlashMic requires two AA-size batteries. Either 1.5v alkaline or 1.2v NiMH
(nickel metal hydride) rechargeable batteries may be used.

Batteries of at least 1500mAh capacity are recommended.

!

Do not use zinc chloride batteries.

Inserting Batteries

Hold the FlashMic in one hand and unscrew the rear
section (the section with the display and operating
controls) with the other.

Slide the rear section back as far as it will go.

Open the hinged plastic battery compartment
cover.

Insert the two batteries oriented as shown on the
compartment cover.

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The two batteries must point the same way.

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Always change both batteries at the same time, and always use two batteries of the

same brand and type. NEVER mix alkaline and rechargeable batteries.

Close the cover, push the rear section back over the compartment, and screw up
tight.

Note: If changing alkaline batteries, dispose of the old ones in a responsible manner
– always observe local environmental guidelines.

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Battery Management

Battery life will be maximised if the FlashMic is switched off when not in use, as the
power consumed in IDLE mode is virtually the same as in REC mode.

The internal clock settings are protected within FlashMic for approximately 1 minute
after the batteries are removed. Recorded sound files and configuration settings are
not affected by battery removal.

Remove any batteries from the FlashMic if it is to be unused for an extended period
(more than a month).

Battery Status Indicator

A 4-segment battery status indicator is provided on the LCD display.

The number of segments displayed is proportional to the battery power remaining.
The rate of change of the display can be altered (via the menu system or via the
FlashMic Manager software) to reflect the different discharge characteristics of
alkaline or rechargeable batteries.

The display backlight, the record LED on the FlashMic base and the battery indicator
will all flash when the remaining battery life approaches zero.

9

Using the FlashMic

Jogswitch Description

Many of the FlashMic’s operating functions are accessed via the jogswitch on the
bottom panel. These include power on/off, navigation through the various internal
menus, adjustment of levels, and track selection for replay.

Operation of the jogswitch for each specific FlashMic function is described in detail
in the section of the manual covering the function. However, because the jogswitch
has several physical movements associated with it, an overview is given here.

The jogswitch is a small wheel protruding from the base of the FlashMic. It is
effectively three momentary-acting pushbuttons in one; it can be pressed inwards
(from its rest position), or rotated in either direction. The actions are all spring­loaded so that the jogswitch always returns to its rest position. Each of the three
possible movements can be either ‘long’ or ‘short’, giving a total of six possible
actions. The FlashMic’s firmware determines a ‘long’ press to be one of greater than
2 seconds. duration, and as ‘short’ press to be one of less than 2 seconds.

The diagram below summarises the possible movements.

Elsewhere in this manual, the following notations are used to denote the various
types of jogswitch action. It is assumed that the FlashMic is orientated with the LCD
display facing the user.

NOTATION ACTION

SHORT PRESS Press the centre protrusion inwards and release

LONG PRESS

SHORT DOWN TURN Move the wheel downwards and release

LONG DOWN TURN

SHORT UP TURN Move the wheel upwards and release

LONG UP TURN

Press the centre protrusion inwards for a least 2
seconds

Move the wheel downwards and hold for at least
2 seconds

Move the wheel upwards and hold for at least 2
seconds

03:14:35

TRK001

10

Switching The FlashMic On

The FlashMic is switched on by a SHORT PRESS on the jogswitch, and switched off
by a LONG PRESS until the text OFF appears in the display. The FlashMic will turn off
when the jogswitch is released.

Note that it is not possible to turn the FlashMic off while it is connected to a
computer via its USB cable.

On switching the FlashMic on, the LCD panel displays in sequence:

DRM85

ê

Firmware version

ê

Microphone name

ê

Active preset.

Note that the factory default microphone name is DRM_85 and the factory default
preset is PSET_1.

After this sequence, the FlashMic is in its standby state – referred to in this manual
as IDLE mode - and the displays are as shown below.

FlashMic IDLE Mode Displays

In IDLE mode – i.e. when the FlashMic is powered but not otherwise being operated

– the main display alternates between the number of the last recording (

- recorded files within the FlashMic are referred to as ‘tracks’) and the remaining
recording time.

An exception to this is when no recordings have been made since the FlashMic was
last reconfigured, when the message NOFILE appears instead of TRKnnn.

The FlashMic is fitted with an internal calendar/clock. Before using the FlashMic
for the first time it is recommended that this is set correctly. See Clock Set Menu,
page 23 for details of how to do this.

TRKnnn

03:24:04

Rec

SAVING

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Making a Recording

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The file format created within the FlashMic includes a record of the date and time

at which the recording was made, together with textual information – entered via

FlashMic Manager software – to aid later identification of recordings. Nevertheless,

it is good recording practice to keep a separate written or electronic recording log

during a recording session in the field, as many similar-sounding files may often be

created.

Keeping such a log is recommended. It will frequently ease the task of identifying

your recordings after they have been transferred into a computer for further

editing.

To initiate a new recording, press the red REC button (G). The REC flag in the
display and the REC LED on the FlashMic’s rear panel both illuminate.

The record LED can be turned off, if for example, the FlashMic is in camera shot. To

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do this, press and hold the PLAY button while the FlashMic is in REC Mode; the display

will show LEDOFF. The LED can be re-enabled by repeating this action while still in REC

Mode. Note that the LED will always illuminate initially when REC Mode is selected.

The bargraph meter in the display provides an indication of the recording level.

The main display indicates the remaining recording time, and counts down.

When there are 10mins. of record time remaining, the display backlight, the record
LED on the FlashMic base and the REC flag in the display will all flash. The FlashMic
will stop recording when there is 1min. of recording time remaining; this is to allow
for data error correction.

Recording Display

To stop the recording, press the M/STOP button (M). The text
SAVING appears in the display, and after a brief pause, the IDLE display resumes, with
the track number being indicated.

Saving Recorded Track

Factory settings:

Settings of recording format, record level, etc., will generally be made via the system
of configuration files and presets within the FlashMic Manager software. However,
the FlashMic comes with a set of factory parameters enabling it to be used “out
of the box”, without any recourse to FlashMic Manager. See Using the Default
Configuration, page 28 for a list of these parameter values.

UNLOCK

Rec

LOCKED

Rec

12

PreRecord Buffer (Introduction)

In a busy journalistic schedule, it is sometimes difficult - or impossible - to get to the
record button quickly enough. The result is a recording that starts a few seconds
after the vital bit of information that was needed. The FlashMic incorporates a pre­record buffer of up to 10 seconds (adjustable), which avoids this situation.

When the recording is replayed, it will be found that it begins with a few seconds of
audio immediately before the REC button was pressed.
See PreRecord Buffer, page 36 for more details.

Record Lock

The FlashMic is equipped with a REC LOCK function to prevent the accidental
cancelling of REC mode during a recording.

Once in REC mode, press the REC button a second time, holding it down for at least
2 seconds, until the LCD screen displays the text LOCKED.

Pressing the M/STOP button will now have no effect (other than to display the text
LOCKED).

To disable REC LOCK mode, press and hold the REC button until the LOCKED display
changes to UNLOCK.

Now the recording can be stopped in the normal manner by pressing M/STOP.

REC LOCKED/UNLOCK Displays

Monitoring

A pair of headphones may be connected to the FlashMic for monitoring purposes.
Headphones of 32 ohms impedance or higher should be used. Connect the
headphones via the 3.5mm 3-pole jack marked PHONES on the FlashMic bottom
panel. The mono signal from the FlashMic will be heard in both earpieces. Headphone
monitoring of live audio is active in both IDLE and REC modes.

The monitor output may be used to drive external equipment for monitoring or
recording if desired.

The monitor level is adjusted with the jogswitch; a SHORT PRESS shows the text
PHONnn on the LCD display, where nn = the current level. (The units are arbitrary; 00
= off, 50 = max.) A SHORT UP TURN or DOWN TURN will respectively increase or
decrease the monitor level. Note that the monitor level always resets to 28 when
the FlashMic is switched on. The level can be adjusted during REC, PLAY or IDLE
modes.

The LCD display will return automatically to the REC or IDLE displays after a timeout
period of approx. 2 seconds.

RVOL35

Rec

RV AGC

Rec

00:00:01

Play

TRK005

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Adjusting Record Level

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Adjustment of Record level is only possible if the FlashMic has been set (via the FlashMic
Manager software) to permit configuration changes by the user. See the section on
FlashMic Manager for more information.

The recording level is adjusted with the jogswitch. A SHORT UP TURN or DOWN
TURN while in REC mode displays the text RVOLnn, where nn = the current level.
(Unlike monitor level, the units are not arbitrary, being increments of approximately
1dB; 01 = min, 40 = max.) Further SHORT UP or DOWN TURNS will nudge the
record level up or down.

When the record level is reduced to minimum, the AGC system is selected and
the display shows RV AGC. In this mode, FlashMic automatically adjusts recording
level according to the sound level. In most situations, this ensures that a recording
of usable level will be made, but as with all automatic gain systems, a degree of
background noise “pumping” may be audible on the recording.

It is also possible to adjust the FlashMic’s recording level from IDLE mode, using the
menu system. See FlashMic Menu System, page 18.

Note that the record level always resets to the last value used when the FlashMic
is switched on, and not to the value set as part of the preset by FlashMic Manager.
(See section on FlashMic Manager for more information on presets.)

Setting Recording Levels

Replaying Tracks

A recorded track may be replayed for auditioning purposes.

To replay the last track recorded, press the PLAY button (H). The PLAY flag on the
LCD display illuminates. After a brief pause, the display shows the elapsed time of
the track. The recording may be monitored via the PHONES connector. At the end of
the track, the FlashMic will resume IDLE mode. Pressing the M/STOP button during
replay will also return the FlashMic to IDLE mode. To pause playback during play,
press PLAY again. The LCD display will show PAUSE. Play can be resumed by pressing
PLAY again, or stop mode can be entered by pressing ‘MENU/STOP.

A LONG UP TURN on the jogswitch will “fast-forward” the track (FFW mode), to
enable a particular section of the track to be located. Similarly, a LONG DOWN
TURN “rewinds” the track (REW mode). The time display continues to show the
track time during these ‘fast’ modes.

To select and replay a track other than the last recorded, decrement the track
number with SHORT DOWN TURNs on the jogswitch. (A LONG DOWN TURN will
decrement faster.) UP TURNs will similarly increment the track number. When the
required track number is displayed, press the PLAY button to replay the track.

It is also possible to select a different track while remaining in PLAY mode; SHORT
TURNs of the jogswitch will skip to the next or previous track, depending on the
direction of rotation. Be careful not to make LONG TURNs, as the FlashMic will
instead enter FFW or REW mode, as described above.

Select Track Display

Track Replay Display

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Markers

It is often useful to mark one (or more) points in a recording for ease of reference
during later production and editing. You can add markers to FlashMic recordings in
REC mode, while the recording is being made.

The markers are ‘data flags’, which are embedded in the sound file at the appropriate
point. They will appear as onscreen markers when the downloaded sound files are
later loaded into a sound editing package. The markers are written to the sound file
with both linear and compressed recording formats.

FlashMic markers are recognised by a number of professional editing applications,
including Cool Edit Pro, Adobe Audition, Sound Forge V4 and above. Note however,
that editors can currently only read markers in sound files recorded using the linear
recording modes.

A marker is added whilst recording by a short press on the REC button. (Note that
a long press activates the REC LOCK function in REC mode). The LCD display briefly
displays MARKER. As the marker is purely a data flag within the sound file, no further
indication of its presence will be apparent until the resulting file is loaded into an
editor.

Deleting a Track

If an erroneous or otherwise unwanted or unusable recording is made, it may be
deleted from the FlashMic’s memory to save memory space.

Deletion of tracks is performed via the FlashMic menu system. See Delete Menu,
page 22 for full details on how to delete a track.

File Transfer

Typically, you will use your FlashMic ‘in the field’ to capture a number of different
recordings. The resulting sound files will need to be downloaded from the FlashMic
into a computer at some point for further evaluation, editing, deletion, or other
treatment before they can be broadcast or otherwise made useful.

In many organisations, the process of file transfer may be performed by someone
other than the person who made the recordings. It is possible that a FlashMic may
have been used by more than one recordist. Or it may happen that one recordist
may use more than one FlashMic during a day of field recording. Thus is it important
that any log that has been kept during the recording should be referenced during the
transfer process so that files can be correctly identified and attributed.

There are two methods for transferring sound files from FlashMic to a computer.

• Via the FlashMic Manager software supplied with FlashMic.

• Direct transfer.

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Transfer Using FlashMic Manager

This assumes FlashMic Manager has already been installed on a computer. See
section Installing FlashMic Manager, page 24 if this is not the case.

First determine the location in the computer’s directory structure where

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the sound files should be transferred to. This may necessitate creating and
naming new folders for the purpose.

Open the FlashMic Manager application. (Note the window which opens is

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not maximisable.)

Switch the microphone on.

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Connect the FlashMic to a spare USB port on the computer, using the cable

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supplied.

The FlashMic LCD display will show USB, and the large red indicator in

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the FlashMic Manager window will turn green. There should also be some
audible and/or visual confirmation on the computer that the FlashMic has
been ‘recognised’. (Exactly what form this confirmation takes may vary
slightly from computer to computer. Ignore any window called DRM85 that
may open.)

In the area USB Connection, click the button Download Audio Data from

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DRM… The Transfer Audio Files dialogue box opens.

The sound files in the FlashMic will be listed. Select those to be transferred

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by highlighting them with a single click. (Normal Windows/MAC
conventions re multiple file selection apply.)

Click the Transfer… button. The Browse For Folder dialogue box opens.

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Navigate to the folder into which the sound files are to be transferred. Click

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OK.

The file(s) are transferred. Depending on the number and length of sound

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recordings, and the spec of the computer, this may take from a few
seconds to some minutes, during which time a progress indication is
provided. When the files have been transferred successfully, a confirmation
box appears. Dismiss this, and the transfer is complete.

Disconnect the FlashMic. After disconnection, the FlashMic can be switched

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off.

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Direct Transfer to a Computer

As the FlashMic is a generic USB mass storage device, files can be transferred from
it to a Mac or PC in the same way as from any other USB mass storage device.

Do not attempt to format the FlashMic from Mac or PC as the internal file system will be

!

corrupted and any recordings will be lost.

Note the example given below applies to a PC running Windows™ XP. Other operating
systems differ slightly, if you are unsure about this procedure, please consult your
HHB dealer.

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Switch the microphone on.

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Connect the FlashMic to a spare USB port on the PC, using the cable

supplied. The FlashMic’s display will show USB.

You can audition the sound files recorded in the FlashMic before transferring them,
if wished. To do so:

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If a “DRM-85 (d:)” window opens (d = drive letter, will vary with PC) listing
options for playing music files, you can select any audio file application
offered (such as Windows™ Media Player) to audition the sound files within
the FlashMic. The options available will depend on which software
applications are installed on the PC.

If the drive folder above does not open, you can still audition the files by

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opening any audio application available on the PC, and selecting File>Open.
Then navigate first to the DRM-85 device, which will be listed among the
drives, then to the AUDIO folder within it. The sound files are all in this
folder.

If you do not wish to audition the files first, or have already done so, perform the
transfer as follows:

First determine the location in the PC’s directory structure that the files

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should be transferred to. This may necessitate creating and naming new
folders for the purpose.

Using Windows™ Explorer, navigate to the DRM-85 drive in the ‘Folders’

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pane, and open the folder called ‘AUDIO’. The recorded sound files will be
listed in the main pane. Do not delete any files in any of the other folders.

Drag-and-drop the required sound files to their new location in the normal

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way.

Disconnect the FlashMic. After disconnection, the FlashMic can be

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switched off.

MENU

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FlashMic Menu System

The FlashMic’s menu system allows you to adjust internal settings and select various
options to suit your specific recording needs.

Basic recording, playback and file transfer do not require use of the menu system.

Note that some of the menus will only be available to the user if access to them was
enabled in the FlashMic Manager software at the time of configuration file definition.
These menus are clearly indicated in the descriptions that follow and are marked
with an asterisk (*) in the table below. Please see the manual section on FlashMic
Manager for more information about configuration files and enabling or disabling
user access.

Using the Menus

The menu system is entered by pressing the M/STOP button while the FlashMic is
in IDLE mode. The word MENU appears in the display.

Note that pressing M/STOP while the FlashMic is in REC or PLAY modes cancels
REC or PLAY.

Entering the Menu System

This is the ‘header’ of the menu option list. A SHORT DOWN TURN of the jogswitch
will now bring up the first of the menus, PRESET. Subsequent SHORT DOWN TURNs
bring up the others in turn. When the menu that you want to check or modify is
reached, it may be selected by a SHORT PRESS of the jogswitch.

The menu options are:

MENU DISPLAY USE

Preset Menu

*Recording Mode
Menu

*Recording Level
Menu

*Hi-pass Filter Menu

*Battery Type Menu

Delete Menu

PRESET

R MODE

RECLEV

HIPASS

BATTYP

DELTRK

Allows selection of a different configuration
preset

Allows selection of audio file format

Adjustment of recording level

Hi-pass filter in/out

Set for battery type in use

Deletes selected recording

Clock Set Menu

Pressing M/STOP a second time (from anywhere within the menu structure) will
return the FlashMic to IDLE mode.

A SHORT PRESS on the jogswitch from within a menu option (i.e., after a menu
option has been selected) returns the FlashMic to the opening screen of that menu
option.

TIMDAT

Sets internal calendar and clock

PRESET

PSET 1

EMPTY

18

Preset Menu

The Preset Menu allows the user to select which preset from the FlashMic’s current
configuration file is to be used.

The FlashMic’s configuration file can have up to 9 presets. The configuration file is
loaded into the FlashMic from a computer, using the supplied FlashMic Manager
software. Each preset determines the value of various FlashMic parameters,
including recording level and mode, pre-record buffer duration and the file name.
(The file name will appear in the header of the audio files.) The parameters are all
defined within FlashMic Manager; see Configuration Files and Presets, page 27
for a full description.

To enter the Preset Menu, enter MENU mode by pressing the M/STOP button, and
then make one SHORT DOWN TURN of the jogswitch. The display will show PRESET.
Select this with a SHORT PRESS, and the name of the currently selected preset will
be displayed. To select a different preset, make SHORT UP or DOWN TURNs of the
jogswitch. The display will show the names of the alternative presets, as they were
defined in FlashMic Manager. When the name of the required preset is displayed, a
SHORT PRESS on the jogswitch will select it and load it into the FlashMic.

Preset Menu Display

Note that not all 9 presets available in a configuration file need to be defined in
FlashMic Manager. Those not defined will be displayed as PSET N, where N is a
number between 1 and 9, as PSET N is the default preset name used in FlashMic
Manager. (However, note that PSET N will still be displayed for a preset that has
been defined if the default name is not altered!) If selection of an undefined preset
is attempted, the message EMPTY is displayed, indicating that this preset location
cannot be used.

Preset Name

Note that when the FlashMic is first used “out of the box”, all nine presets are
empty.

Preset Empty

R MODE

19

Recording Mode Menu

This menu will not be available if ‘Enable Configuration changes in DRM’ was set to
‘No’ when the configuration file was defined in FlashMic Manager.

The Recording Mode menu permits selection of an alternative digital recording
format to that determined by the currently selected preset.

A total of six recording formats are available within FlashMic; two file formats at
each of three sample rates. The formats are:

FILE TYPE

BWF files (uncompressed) 48kHz

BWF files (uncompressed) 44.1kHz

BWF files (uncompressed) 32kHz

MPEG1 (Layer 2) files 48kHz

MPEG1 (Layer 2) files 44.1kHz

MPEG1 (Layer 2) files 32kHz

The choice of recording mode will usually be determined by the onward programme
production chain.

To enter the Recording Mode Menu, enter MENU mode by pressing the M/STOP
button, and then make SHORT DOWN TURNs of the jogswitch until the display

shows R MODE.

SAMPLE

RATE

DISPLAY

LIN48K

LIN44K

LIN32K

MP48K

MP44K

MP32K

MAXIMUM

RECORDING TIME

3hr

3hr 15min

4hr 30min

12hr 15min

14hr 40min

18hr 25min

Select this with a SHORT PRESS, and the display will show the name of the currently
selected recording mode, as listed above. To select a different recording mode,
make SHORT UP or DOWN TURNs. The display will show the names of the alternative
modes.

When the required recording mode is displayed, a SHORT PRESS on the jogswitch
will select it.

Record Mode Menu Display

The recording mode selected will be that used for subsequent recordings until a
different recording mode or preset is selected.

Note that any recordings already in the FlashMic’s memory will remain at whatever
mode was applicable when they were made.

RECLEV

RV AGC

RVOL34

20

Recording Level Menu

This menu will not be available if ‘Enable Configuration changes in DRM’ was set to
‘No’ when the configuration file was defined in FlashMic Manager.

The audio level used during recording will be that defined within FlashMic Manager for
the preset being used. The Recording Level menu permits this level to be altered.

To enter the Recording Level Menu, enter MENU mode by pressing the M/STOP
button, and then make SHORT DOWN TURNs of the jogswitch until the display
shows RECLEV.

Record Level Menu Display

Select this with a SHORT PRESS, and the display shows either RVOLnn - where nn =
the current level – or RV AGC if automatic adjustment of recording level was defined
for the current preset.

The recording level can now be adjusted with SHORT UP or DOWN TURNS. A
SHORT PRESS selects the new level.

Record Level Setting

The units used are in dBs; 01 = min, 40 = max.

When the record level is reduced to ‘zero’, the AGC system is selected.

In this mode, FlashMic automatically adjusts recording level according to the sound
level. In most situations, this ensures that a recording of usable level will be made,
but as with all automatic gain systems, a degree of background noise “pumping” may
be audible on the recording.

Record Level Set To AGC

It is also possible to adjust the FlashMic’s recording level whilst recording. See
Adjusting Record Level on page 13.

Note that the record level always resets to the last value used when the FlashMic is
switched on, and not to the value set as part of the preset.

HIPASS

BATTYP

21

Hi-pass Filter Menu

This menu will not be available if ‘Enable Configuration changes in DRM’ was set to
‘No’ when the configuration file was defined in FlashMic Manager.

The FlashMic’s analogue circuitry includes a hi-pass filter, to assist in the rejection
of extraneous low-frequency background noises, such as air-conditioning noise or
traffic rumble. The filter has a slope of 12dB/oct. and a turnover frequency of
100Hz.

The filter is set to be in or out of circuit in the FlashMic Manager software for each
preset, and is loaded into the FlashMic with the configuration file. However, the filter
may be switched in and out of the recording chain via the menus.

To enter the Hi-pass filter Menu, enter MENU mode by pressing the M/STOP
button, and then make SHORT DOWN TURNs of the jogswitch until the display
shows HIPASS.

Hi-pass Filter Menu Display

Select this with a SHORT PRESS, and the display shows either HP ON or HP OFF.
The filter can be switched in or out with SHORT TURNs of the jogswitch. A SHORT
PRESS selects the setting.

Battery Type Menu

This menu will not be available if ‘Enable Configuration changes in DRM’ was set to
‘No’ when the configuration file was defined in FlashMic Manager.

The FlashMic may be powered by rechargeable or alkaline batteries. The two types of
battery have different discharge characteristics, and for the battery status symbol in
the LCD display to reflect the battery’s remaining charge as accurately as possible,
it is necessary to set the battery type menu parameter to match the batteries being
used.

The battery type is set in FlashMic Manager as a ‘global’ setting, which is applicable
to all presets in one configuration file, and is not selectable to the different types for
different presets. The setting may be overridden via the Battery Type Menu.

To enter the Battery Type Menu, enter MENU mode by pressing the M/STOP
button, and then make SHORT DOWN TURNs of the jogswitch until the display
shows BATTYP.

Select this with a SHORT PRESS, and the display shows either ALKLIN (alkaline) or
RECBLE (rechargeable). The battery type can be changed with SHORT TURNs of the
jogswitch. A SHORT PRESS selects the setting.

Battery Type Menu Display

DELTRK

TRK005

SURE N

SURE Y

22

Delete Menu

It is often desirable to delete unwanted recordings (tracks) from the FlashMic’s
memory, particularly if they have been made erroneously or are otherwise unusable.
The Delete Menu permits the user to do this.

Note that any track deleted in this way is deleted permanently and irrecoverably.

As tracks are only referred to by their track number on the FlashMic’s LCD display,
before deleting a track always ensure you know which one you are trying to delete.
The importance of maintaining an accurate recording log is again emphasised. If
you have any doubt about the track number, replay it first to ensure you have the
correct one.

To enter the Delete Menu, enter Menu mode by pressing the M/STOP button, and
then make SHORT DOWN TURNs of the jogswitch until the display shows DELTRK.

Delete Track Menu

Select this with a SHORT PRESS, and the display shows the currently selected track
number, which will normally be that of the last track recorded.

Select Track for Deletion

If it is required to delete a different track, SHORT TURNs of the jogswitch will alter
the track number either up or down. When the number of the correct track is
displayed, a SHORT PRESS selects it. The text SURE N is now displayed. If you are
sure you have selected the correct track, a SHORT DOWN TURN will change the
display to SURE Y.

Cancel Track Deletion

Another SHORT PRESS will now delete the track. Note that the track numbers of
subsequent recordings are not altered.

If the jogswitch is pressed in while SURE N is displayed, nothing is deleted, and the
FlashMic returns to the head of the menu option, with DELTRK being displayed.

Confirm Track Deletion

TIMDAT

23

Clock Set Menu

The FlashMic contains a real-time calendar/clock, which allows a date and time
‘stamp’ to be embedded in the audio file headers. This is a great aid to later accurate
identification of what may be many similar-sounding recordings made in the field.

The clock runs continuously whilst batteries are fitted. It continues to run for approx.
1 minute after the batteries are removed, allowing time for a change of batteries. If
the batteries are removed for a longer period, or before the FlashMic is used for the
first time, the clock will need to be set to the correct date and time of day.

Note that the FlashMic is perfectly usable without the clock being set accurately;
the only consequence is that the file date/time information will be incorrect (though
intervals between file creation times will be accurate).

To enter the Clock Set Menu, enter MENU mode by pressing the M/STOP button,
and then make SHORT DOWN TURNs of the jogswitch until the display shows
TIMDAT.

Clock Set Menu Display

Select this with a SHORT PRESS, and the display shows Y yyyy, where yyyy is the
year. This can be altered up or down with SHORT TURNs of the jogswitch. A SHORT
PRESS selects the setting, and the display will now show in turn MON mm, where mm is
the number of the month of the year; DAY dd, where dd is the day of the month; HH
hh, where hh is the hour of the day (note that FlashMic uses a 24-hr. clock); MM mm
for minutes, and SEC ss for seconds. Each of these can be altered in the same way
as the year. The full sequence is show below.

TIMDAT

ê

Y 2006

Set Year

ê

MON 04

Set Month

ê

DAY 06

Set Day

ê

HH 23

Set Hour

ê

MM 00

Set Minutes

ê

SS 25

Set Seconds

After setting all the date and time parameters, the LCD display returns to the
opening TIMDAT screen; the menu system can then either be exited by pressing M/
STOP, or another menu option can be selected with the jogswitch.

24

FlashMic Manager

FlashMic Manager is the software application supplied with FlashMic. The CD-ROM
that came supplied contains both PC and Mac versions.

While it is perfectly possible to use FlashMic without using FlashMic Manager, you
will not be using it to its full effectiveness, and will not be accessing the full range of
features and functions that FlashMic offers.

Using FlashMic Manager gives three main advantages:

You will be able to alter the internal configuration of your FlashMic, to

•

determine which file formats and sample rates are used, and to change
other FlashMic parameters.

You will be able to change the default filename prefixes to something more

•

meaningful to the particular job, adding, for example, a reporter’s name.

FlashMic Manager provides a very simple method of downloading recorded

•

files to the computer.

The installation instructions given assume that the user is familiar with basic
Windows™/Mac™ operations for file handling, navigation, etc. If you are unsure
how to install the software, please consult your organisation’s IT department, or
your HHB dealer.

Installing FlashMic Manager on a PC

PC REQUIREMENTS FOR FLASHMIC MANAGER

Any PC satisfactorily running Windows™ XP or 2000 should support FlashMic
Manager software without any difficulty. One spare USB port on the PC is required,
for connection of the FlashMic.

Insert the FlashMic CD-ROM into the CD/DVD drive of the PC. The

•

CD should autostart, and the following window will appear. See the following
Manual Installation instructions if autostart does not run.

Select the destination directory that the FlashMic Manager application will

•

be installed in. Use the Browse button to navigate to a suitable location
in the normal Windows manner. C:\Program Files is a suitable location,
but any other may be chosen if preferred.

Click Install.

•

25

Manual Installation instructions.

If, for any reason, the CD does not autostart, open My Computer, and

•

double-click the CD, which will be called FlashMic.

Find the folder titled FMM_Win and copy it to a suitable location on the

•

hard drive. C:\Program Files is a recommended location.

Within this folder is a file named FlashMicManager.exe. Create a shortcut

•

from your desktop to this file. FlashMic Manager can then be launched
from this shortcut.

Installing FlashMic Manager on a Mac

MAC REQUIREMENTS FOR FLASHMIC MANAGER

Any Mac running OSX should support FlashMic Manager software without any
difficulty. One spare USB port on the Mac is required, for connection of the
FlashMic.

Insert the FlashMic CD-ROM into the CD/DVD drive of the Mac.

•

Copy the folder ‘FMM_MacOSX’ located on the CD to the desired location on

•

the hard disk. The ‘Applications’ path is a recommended location.

To launch the FlashMic Manager, double click the application

•

FlashMicManager.app located within the folder.

26

Using FlashMic Manager

The user interface of FlashMic Manager opens as shown below:

FlashMic Interface Running on a PC

FlashMic Interface Running on a Mac

27

Configuration Files and Presets

Before you start exploring the features of FlashMic Manager, it is important to
understand some basic terminology and the concepts behind the use of presets.

Various parameters of the FlashMic’s operation can be changed with FlashMic
Manager. A set of parameters is called a preset, and the FlashMic can hold up to
9 presets at any time.
The FlashMic user can select whichever is appropriate for the recording application
using the menus.

A set of 9 presets is saved as a configuration file within the computer, and you
may create and name as many configuration files as you need. Configuration files
are saved with a .cfg filename extension. The entire configuration file will then be
uploaded into the FlashMic, giving it its 9 presets.

The FlashMic parameters which can be defined in a preset by FlashMic Manager
are the following:

PARAMETER VALUES USER ALTERABLE*

Preset Name 6-character text string No

Record Mode File type & sample rate Yes

Pre-record Buffer 0 to 10 seconds. No

Record Level 8 steps from 5dB to 40dB Yes

High-pass Filter In/Out Yes

Backlight 3 options No

Filename 31-character text string No

Battery Display
Characteristic

* Parameters marked ‘Yes’ can be subsequently changed within the FlashMic by the
user, provided that Configuration Changes were enabled in FlashMic Manager at
the time of configuration file creation.

Alkaline or rechargeable Yes

28

Using the Default Configuration

The first time FlashMic Manager is run, a file Defaults.cfg will be created. It will
be found in the same folder containing the FlashMic Manager executable file
(FlashMicManager.exe). This file differs from other *.cfg files in that its purpose is
to provide a convenient set of default parameter values to aid the user in setting up
his/her own personalised default configuration file.

The parameter values provided by this default are:

PARAMETER VALUES

Record Mode Linear, 48kHz sample rate

Pre-record Buffer Off

Record Level AGC on

High-pass Filter On

Backlight Energy saving mode

Filename TRACK

Battery Display Characteristic Alkaline

These are the settings that will be found in the FlashMic when used for the first time
“out of the box”.

To see these parameters displayed in FlashMic Manager, click File>New (or hit
CTRL+N). This will remove the greyed-out fields ready for data entry. Then click
Presets>Set Default Values (or hit CTL + D). This loads the parameter values listed
above into the data fields for the currently selected Preset number, as shown in the
Select Preset box (in this instance, 1). The FlashMic Manager window should now
look like this:

Note that it is possible to modify Defaults.cfg to suit the requirements of your
own organisation (for example to include your company name). See Creating a
Personalised Defaults File, page 35.

29

FlashMic Manager Window - Features

Preset Information

Using the default parameter set loaded previously as an example (PSET_1), examine
the various items of information now displayed in the window.

Items marked ‡ are those uploaded to the FlashMic as part of the preset.

Current Config file:
The filename displayed here will be that of the currently loaded configuration file. In
this case, ‘New’ is displayed because the file has not yet been saved.

Select Preset – drop-down box permitting selection of one of the 9 presets making
up the configuration file.

Preset Custom Name ‡ – text box for the name of the preset. This will be displayed
in the FlashMic during power-up (if the preset was the last used before power­down).

Note that underscore characters are used to insert spaces in the example preset
name, PSET_1.

SAVE

Clicking this button saves the configuration file currently loaded in FlashMic Manager
to the same filename it had when it was opened. If the file has been created from
new (as in the example case), a standard Save File As window for a new filename
will be opened first. The default name offered is Presets.cfg, but the user may
substitute any other filename preferred. Clicking the SAVE button is equivalent to
selecting File>Save, or using the keyboard shortcut CTRL + S.

Preset Configuration

Record Mode ‡ – this drop-down box lets you determine the file type and sample
rate from 6 options:

RECORD

MODE

LIN48K BWF files (uncompressed) 48kHz 3hr

LIN44K BWF files (uncompressed) 44.1kHz 3hr 15min

LIN32K BWF files (uncompressed) 32kHz 4hr 30min

MP48K MPEG1 (Layer 2) files 48kHz 12hr 15min

MP44K MPEG1 (Layer 2) files 44.1kHz 14hr 40min

LIN32K MPEG1 (Layer 2) files 32kHz 18hr 25min

FILE TYPE

SAMPLE

RATE

MAXIMUM

RECORDING TIME

30

Audio Format – confirms selected audio algorithm

Sample Rate – confirms selected sample rate

Encoded BitRate – confirms effective bitrate of data being written into memory

PreRecord Buffer ‡ – drop-down box for setting the duration of the FlashMic’s pre-

record buffer in 1 second increments from zero (off) to 10 seconds. (Set to OFF in
example) See section on PreRecord Buffer, page 36 for more information.

Record Volume/AGC ‡ – If the AGC box is checked (as in this case), the Record
Volume drop down box will be greyed-out. With this setting, the AGC circuit is turned
on, and no fixed record level is set.

If the AGC box is unchecked, the Record Volume drop-down box permits setting of
the record level in 5dB increments from 5dB to 40dB.

See Adjusting Record Level, page 13 for more information.

High Pass Filter ‡ – FlashMic includes a 100Hz 12dB/octave high-pass filter
which can be switched in and out.

Backlight ‡ – the display panel backlight in FlashMic can be set to be permanently
on or off, or to “Energy-Save mode”, where the backlight illuminates for a short
period when a button is pressed. The battery life will be noticeably shortened if the
backlight is set to “Always On”.

BWF/MPEG File Info

File Name ‡ - The text in this field (default text ‘TRACK’ in the example) will form

part of the header of all sound files recorded in the FlashMic with this preset. This
is to assist later identification. Note the file name can be different for each preset in
the configuration file. The name can have up to 31 characters.

See File Name Structure, page 37 for more information.

Note: The data in the next three fields is written into the BEXT data chunk of the
.wav file, and can be read by any compatible editing system.

Company Name – This field is optional and can be used for reference and
housekeeping purposes. Max. length is 31 characters.

Reporter Name - This field is optional and can be used for reference and housekeeping
purposes. Max. length is 31 characters.

Description - This field is optional and can be used for reference and housekeeping
purposes. Max. length is 255 characters.

31

Other Features and Functions

DRM Configuration

Enable Configuration Changes in DRM – Setting this to “No” restricts the range

of menu options available in the FlashMic itself. Refer to the table within Using the
Menus, page 17 to see which parameters will not be alterable by the user. Setting

this option to “Yes” enables the full range of menu options.

Battery – this drop-down box is for setting the type of batteries being used. It
changes the characteristic of the battery status display on the FlashMic to reflect
the different discharge rates of the two types.

USB Connection

Send this configuration file to DRM

Clicking this button initiates the upload of the configuration file currently loaded in
FlashMic Manager into the FlashMic.

Download Audio Data from DRM

Clicking this button initiates the download of the sound files currently in the FlashMic
to the computer (see section Transfer Using FlashMic Manager, page 15 for more
details).

Connection Status

The large “LED” indicator at the top right of the window
indicates whether a FlashMic is connected to the computer.
It is red when a FlashMic is not connected, and turns green
when a successful connection is established.

Menu Bar

Many of the options available in the menu bar are standard to all Windows™
applications and need little explanation:

File>
New: clears all parameter fields, allows creation of new configuration file. (Keyboard

shortcut: CTRL + N)

Open: opens “Select file to Open/Load” dialogue box to permit selection of existing
configuration file to load. (Keyboard shortcut: CTRL + O)

Save: Saves currently-loaded configuration file as existing filename, unless it is a
new file being saved for the first time, in which case the “Save File As” dialogue box
opens, for file naming. (Keyboard shortcut: CTRL + S)

Save As: opens “Save File As” dialogue box to permit file naming before saving.
(Keyboard shortcut: none)

Exit: closes FlashMic Manager. (Keyboard shortcut: CTRL + E)

32

Settings>
Set Date and Time: opens “Set Date and Time” dialogue box, permitting the

FlashMic’s internal clock to be reset. This clock is used to time-stamp recorded
audio files. (Keyboard shortcut: CTRL + T)

Note this menu option is unavailable unless a FlashMic is connected to the computer
and turned on.

Set Date and Time Window

Set DRM Name: opens “Set DRM Name” dialogue box, allowing the name of the
FlashMic currently connected to be changed (maximum 6 characters). The factory
default name is DRM85. This name forms part of the file header of each recorded
sound file, so renaming the FlashMic to a unique name (e.g., that of the user) is of
great assistance when multiple FlashMics are employed. (Keyboard shortcut: CTRL
+ R.) See FlashMic File Names, page 36 for more information.

Note this menu option is unavailable unless a FlashMic is connected to the computer
and turned on.

Set DRM Name Window

Presets>
Set Default Values: resets all parameter fields of the FlashMic Manager window

to the factory default values determined by the file Defaults.cfg, for the currently
selected preset (1 – 9). Any existing set of preset values is overwritten, but the
configuration file to which they belong is unchanged. The configuration within the
FlashMic also remains unchanged until a file upload is performed. This menu option
is unavailable unless a configuration file has already been loaded into FlashMic
Manager. (Keyboard shortcut: CTRL + D)

Clear Preset Values: simply clears all parameter windows; the loaded configuration
file and the FlashMic itself are unchanged. (Keyboard shortcut: CTRL + L)

Help>
Help: opens the Help file. (Keyboard shortcut: F1)

About: displays the FlashMic Manager software version number.

Status Bar

A set of useful additional information is displayed in FlashMic Manager’s status bar:
This consists of (left to right across the status bar):

 FlashMicconnectionstatus
 Nameofcurrently-connectedFlashMic
 VersionNo.currently-connectedFlashMic’sfirmware
 CurrentDateandTime(asderivedfromthecomputer)

Status Bar

33

Connecting the FlashMic

When connecting the FlashMic to the computer running FlashMic Manager, always
ensure the FlashMic is powered and in IDLE mode first.

Connect to the computer with the USB cable supplied.

When the FlashMic is “recognised”, the FlashMic Manager window will display
the parameter values of the currently-selected preset in the FlashMic itself*. The
Current Config file: filename will show “File in DRM is ‘xxx.cfg’”, where ‘xxx’ is the
name of the configuration currently loaded into the FlashMic, and the Select Preset
box will be set to zero. The status bar will confirm that FlashMic Manager is now
displaying the FlashMic’s internal settings with the message “Current active preset
settings on DRM”.

*On connecting the FlashMic, a standard USB connection window (titled ‘DRM’ in

this case) may open offering various options; click Cancel to dismiss this window.

Note that connecting the FlashMic to the computer will always attempt to ‘force’
FlashMic Manager to display the FlashMic’s internal settings, and that this operation
will overwrite any other data. If unsaved preset data is already displayed, a prompt
message to Save the current data will be displayed on connecting the FlashMic.

Hint: Saving the settings held in the FlashMic to a new configuration file allows you
to copy one FlashMic’s settings to other FlashMic’s, or to a different computer.

34

Creating a New Configuration File

To create a different preset (or presets), you must first create a new configuration
file.

Click File>New (or enter CTL + N). This clears all the data entry fields and

•

enters ‘New’ as the Current Configuration file name.

Enter data for the first preset (Preset 1) in all data entry boxes in the

•

Current Config file, Preset Configuration and DRM Configuration areas
of the window. Note that all these fields are mandatory. The File Name in the
BWF/MPEG File Info area is also mandatory, but Company Name, Reporter
Name and Description are optional and may be left empty if wished. Note
that only the characters A-Z and 0-9 are allowed in the File Name field.

Click the SAVE button (or click File>Save, or enter CTL + S). The Save File

•

As dialogue box opens. Enter a name for the configuration file in the File
name box and click Save. The dialogue box dismisses. In the FlashMic
Manager window, note the Current Configuration file name is now the name
just entered.

If you want to create further presets within this configuration file, select

•

a new number in the Select Preset drop-down box (it is normal, though not
essential, to work in numerical order!), which clears all the data entry boxes.
Enter the data for the new presets in turn, as before. Note that two
options in the DRM Configuration area of the window - Battery and Enable
Configuration changes in DRM – retain the selection that was made when
creating the initial preset. This is because these two parameters are ‘global’,
and apply to all the presets in the configuration file.

On SAVEing, the configuration file already created will be updated with the

•

additional presets. It is then possible to upload this configuration file. See
Uploading a Configuration File to the FlashMic.

Modifying an Existing Configuration File

You may wish to change an existing configuration file in some way, or possibly use
an existing file as a starting point for a different one. Any parameters in one or more
presets may be changed.

Click File>Open (or enter CTL + O). The Select file to Open/Load dialogue

•

box opens.

The available configuration files (*.cfg) will be listed. Select the file to be

•

used, and click Open. This dismisses the dialogue box, and FlashMic
Manager will now be loaded with the file. The filename appears as the
Current Configuration file in the window’s top area.

The data for Preset 1 is displayed. Either modify the parameters for this

•

preset, or select a different preset for modification.

After all necessary changes have been made to the chosen preset, click

•

SAVE if you don’t want to keep the original set of preset parameters
(i.e. in the configuration file you opened). The set of presets will be saved
as a configuration file with the same name. If you want to create a new
configuration file from the altered presets, click File>Save As, and enter a
new name in the Save File As dialogue box which opens. Click Save.

If you attempt to open a different preset before saving the changes to the

•

current one a warning will open, prompting you to save the changes first.

35

Creating a Personalised Defaults File

You may wish to modify the Defaults.cfg file to include parameter values specific to
your operation. In this way, when Presets>Set Default Values is selected, your own
personalised settings are loaded into the FlashMic Manager data fields.

Refer to Modifying an Existing Configuration File and open Defaults.cfg.

Modify the data as desired, then Save to the existing Defaults.cfg file name.

!

When modifying Defaults.cfg do not change the Preset Custom Name from PSET_1.

Uploading a Configuration File to the FlashMic

After modifying or creating a configuration file, you will want to load it into the
FlashMic. This can be carried out immediately after editing the configuration file.

Launch FlashMic Manager.

•

Switch the FlashMic on.

•

When the FlashMic is in IDLE mode, connect it to the computer with the

•

USB cable supplied.

The LCD display will show USB, and the large red indicator in the

•

FlashMic Manager window will turn green. There should also be some
audible and/or visual confirmation on the computer that the FlashMic has
been ‘recognised’. (Exactly what form this confirmation takes may vary
slightly from computer to computer. Ignore any window called DRM85 that
may open.) FlashMic Manager will display the parameter values of the
FlashMic’s currently selected preset.

On FlashMic Manager, click File>Open (or enter CTL + O), and select the

•

configuration file that you wish to load into the FlashMic.

Click the button Send this configuration file to DRM. A message window

•

will open after a short delay, confirming that the configuration file has been
transferred.

Unplug the USB connector from the FlashMic, which reverts to IDLE mode.

•

Any of the new presets making up the configuration file just loaded may now
be used by recalling it using the Preset Menu. See Preset Menu, page 18
for more details.

36

PreRecord Buffer

The FlashMic incorporates a pre-record buffer of up to 10 seconds (adjustable).

When enabled, audio collected by the microphone is constantly being written into
a buffer memory – separate from the main memory – at all times as long as the
FlashMic is powered. Thus the last few seconds of audio are always already stored
inside the FlashMic. When the REC button is pressed, the contents of the buffer is
written into the main memory, while the ‘live’ audio continues to be written into the
buffer. When the M/STOP button is pressed, the contents of the buffer continues
to be written to the sound file, so nothing is lost.

When the recording is replayed, it will be found that it begins with a few seconds of
audio immediately before the REC button was pressed.

There are no controls on the FlashMic itself for the pre-record buffer; it is enabled
and has its duration set from the FlashMic Manager software, as part of a preset
configuration. The pre-record buffer can be set from 0 to 10 seconds, in one
second increments.

Setting Pre-record Buffer Time

It should be clear that if all sound files are created with 10 seconds of pre-record buffer
enabled, available memory will be used up more rapidly. A degree of experiment may
be necessary to find an optimum setting for the length of the pre-record buffer.

It is recommended that the buffer is deselected (by setting the duration to ‘OFF’ in
FlashMic Manager) for recording situations where it is unlikely to bring any benefit.

FlashMic File Names

Frequently, the number of sound files to be downloaded from a FlashMic may be
quite large. Furthermore, the FlashMic may have been used in several different
locations, and/or by different journalists/recordists. Thus it is important to identify
sound files at the time of recording so that their identity and origin can be correctly
attributed.

A written (or electronic) recording log is recommended elsewhere in this manual,
and it is good professional practice to maintain such a log. FlashMic Manager
additionally provides the user with the scope for considerable extra assistance in file
identification in the form of definable file header information.

37

Filename Structure

The sound files recorded in FlashMic are .wav files, with filenames made up of three
concatenated components separated by underscore characters as follows:

MIC NAME_BWF FILE NAME_TRACK NUMBER.wav

The three components of the filename are specified in FlashMic Manager as part
of a preset definition. After the configuration file containing the preset parameters
is uploaded to the FlashMic, some of the textual data that was entered in FlashMic
Manager is used to form part of the filename.

The three components of the filename are derived as follows:

MIC NAME – this is the name set in FlashMic Manager at Settings>Set

•

DRM Name. This name applies to all presets defined for a particular

configuration file. In an organisation using mulitple FlashMics, it allows
each to be given an individual name, which might be MIC_nn, for example,
or possibly a recordist’s name (if recordists always use the same FlashMic).
The maximum length of the Mic Name is 6 characters (alphanumeric only).

BWF FILE NAME – this is the name entered in the File Name field (in the

•

BWF/MPEG File Info area) of FlashMic Manager. This field can be set
differently for each preset in a configuration file. This field can be utilised
in a variety of ways depending how the FlashMic is to be used; one
possibility might be to create presets which differ only in the file name,
relating textually to different interviews that the FlashMic is to be used
for on a particular day. The maximum length of the File Name is 31
characters (alphanumeric only).

TRACK NUMBER – this part of the filename is generated within

•

the FlashMic itself, and is simply the number of the recording, which
automatically increments by one every time a new recording is made.
It is displayed as TRKnnn in the FlashMic LCD. The format of the track
number is also TRKnnn, where nnn is the track number. Note that the
track number does not reset to zero when a different preset is selected in
the FlashMic, when a new configuration file is uploaded, nor when the sound
files are downloaded. Reformatting the memory (see section Reformatting
the Memory for more information) does reset the track number counter.

Some examples of sound file filenames are shown below.

Filename structure within FlashMic

In the example, several files are in the FlashMic’s AUDIO folder. The first of these is
named MIC_01_JOHN_TRK001.wav.

In this filename, MIC_01 is the FlashMic name that was set in FlashMic Manager
for the configuration file loaded into the FlashMic.

JOHN – possibly the recordist’s name - is the BWF/MPEG File Name set in FlashMic
Manager for one of the presets. We do not know from the .wav filename which
preset number this was, but ‘John’ would have had this information, and would have
selected this preset.

TRK001 is the track number – the first recording of the day, perhaps.

FORMAT

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Looking at the other filenames in the folder, it can be seen that they all begin with
MIC_01, which would be the case if the FlashMic name (DRM Name) was not
changed during the course of the recording period, by uploading a new configuration
file with a different DRM Name. Some of the files differ in the BWF/MPEG File
Name component; this is where the FlashMic was used by – in our example –
different recordists, who each selected a different preset. Note finally, that no track
number is repeated. Further recording identification can of course be obtained from
the date/time file information, which will be accurate as long as the internal clock
was set correctly beforehand.

How you will use the file naming system will greatly depend on the type of organisation
using the FlashMic(s), how many are in use, how many people are using each
FlashMic, the kind of recordings being made, etc. In the simplest of single-mic/
single-owner situations, all the default settings can be used with little chance for
confusion.

Reformatting the Memory

The FlashMic’s 1GB flash memory can be reformatted if wished. This is desirable
after a firmware update, and is essential if the FlashMic is formatted via USB from
a computer. It is also a convenient method of clearing all sound files from the
memory.

!

IMPORTANT: Reformatting the flash memory will permanently delete any sound files and
Preset data still in the FlashMic, so ensure that all your sound files have been downloaded
to a computer before proceeding.

To reformat the internal memory, proceed as follows:

With the FlashMic turned off, hold down all three side panel buttons -

•

REC (G), PLAY (H) & M/STOP (M) – simultaneously.

With the three buttons depressed, turn the FlashMic on. The LCD

•

display will show FMT N. If you are sure you want to proceed, using the
jogwheel make a SHORT DOWN TURN to change the display to FMT Y, then
a SHORT PUSH to accept this.

The display will now show FORMAT. Reformatting takes about 35 seconds to

•

complete. The FlashMic then returns to IDLE mode.

FlashMic LCD Display During Format.

39

Firmware Updates

As a responsible manufacturer, HHB adopts a policy of continuous product
development. As with all software-based products, it may be desirable from time to
time to update the firmware in your FlashMic with a more recent version. You can
contact your HHB dealer or distributor, or visit the FlashMic website at
http://www.flashmic.info for details of firmware updates.

Firmware updates are downloadable from the FlashMic website, or if you prefer,
from your local dealer/distributor on a CD-ROM. Alternatively, if you are uncertain
about performing a firmware update yourself, take your FlashMic to your HHB
dealer, who will be happy to do it for you.

It is recommended that the internal memory is reformatted after a firmware update.
See Reformatting the Memory for further details.

To perform a firmware update, proceed as follows:

First locate the firmware folder and file. Whether you have downloaded the

•

firmware from the FlashMic website or have it on a CD-ROM, it will always
be in a folder called FW VER xx-xx-xx, where xx-xx-xx is the firmware version
number. This folder will contain a file called DRM85.bin, which is the
firmware file itself.

Note that the firmware filename does not identify which version it is, therefore it is
important to keep it in the folder it ‘arrived in’ for identification.

Ensure that the batteries in your FlashMic are adequately charged, and

•

change them if there is any doubt. NEVER start a firmware update with
low batteries, as the FlashMic may be rendered unusable if the batteries run
out midway during the update procedure.

Turn the FlashMic on, and connect it to the computer with the USB cable.

•

The LCD display will change to USB, and the computer will signify its
recognition of the FlashMic in the usual way.

The FlashMic will be identified in the directory tree as an additional drive (the

•

drive letter will vary from machine to machine).

Drag-and-drop the DRM85.bin file to the FlashMic root (not into any of the

•

three folders AUDIO, CONFIG or FIRMWARE it contains).

When the file transfer is complete, unplug the FlashMic’s USB cable and

•

switch the FlashMic off.

Switch the FlashMic back on again; the LCD display will now show the

•

message UPDATE. The bargraph meter indication will start to move from
left to right. When it gets halfway, the FlashMic will turn off.

Switch the FlashMic back on again, and the update will continue

•

automatically. When the bargraph indication is full, the FlashMic will return
to IDLE mode.

The new firmware is now installed. It is suggested that the FlashMic memory

•

is now reformatted. See Reformatting the Memory for further details.

40

Specifications

Sampling Frequency 48kHz, 44.1kHz and 32kHz. Selection by
FlashMic Manager or on DRM85.

Bit Resolution (Linear) 16 Bit

Audio Formats Linear PCM or MPEG 1 Layer 2. Selection by FlashMic Manager

software or on DRM85. 6 mode settings.

Bit rates (MPEG) 192, 160, 128 kbps

Electronics Frequency 20 Hz - 20 kHz ± 1dB @ 48 kHz FS Linear PCM
Response

THD + N < 0.1% (20 Hz - 20 kHz) @ 48 kHz FS Linear PCM

Number of Channels 1 (Mono)

Microphone Capsule Omni-directional

Record Level Automatic or Manual Gain Control

High Pass Filter Switchable on/off, 12 dB/octave @ 100Hz

Data Storage System Fixed internal memory, capacity 1 GB.

Date / Time Internal real-time clock, running as long as power supply is

available. Back-up supply for 1 minute to allow battery change.
Set/synchronized by host computer application according to
host computer clock. Manual setting on DRM85 by menu item.

File Format Linear PCM: .wav, Broadcast Wave File (.wav). Or compressed
MPEG 1 Layer 2 .wav
Date / Time stamp is stored in file header. Filename generated
automatically by DRM85, basic text string provided from PC
software.

File System FAT. Mounts as a removable drive via USB mass storage device
protocol. File transfer is possible with the FlashMic Manager
software or through Windows Explorer and Mac OS Finder.

Headphone Output 3.5mm stereo socket, mono signal to both channels. Manual
volume control by rotary switch. Output may be used for analog
audio recording. Drive capability for 32 ohm headphone, short
circuit protection.

Included accessories Stand Clamp, Batteries (x2), USB cable, Pouch, CDROM,
Manual.

Optional Accessories Windshield (DRMWS), table stand (DRMTS).

Weight 366 grams / 13 ounces (excluding batteries).

Dimensions Length 244mm / 9.6 inches. Diameter at widest point (mic

capsule) 50mm, 2 inches.

Hz

100

100

1.000

1.000

10.000

10.000

dBV

-20

-30

-40

-50

-60

-70

50 100 200 500 1k 2k 5k 10k 20k

0°

30°

60°

90°

120°

150°

180°

210°

240°

270°

300°

330°

41

Polar Diagram and Frequency Response Curve of Microphone Head

FlashMic Frequency Response Curve

2kHz

1kHz and below

4kHz

8kHz

16kHz

FlashMic Polar Diagram

Notification

PRODUCT REGISTRATION

Please register ownership of your FlashMic now at http://www.flashmic.info. Registration
will enable you to receive software updates and other important FlashMic product news.

EC DECLARATION OF CONFORMITY

This equipment conforms to the requirements of the EMC Directive (89/336/EEC) relating to
electromagnetic compatibility by the application of:- EN55013:2001 and EN55020:2002.

FCC COMPLIANCE

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.

-- Consult the dealer or an experienced radio/TV technician for help.

WEEE DECLARATION

FlashMic was developed and manufactured with high quality materials and
components, which can be recycled and/or reused. This symbol indicates
that electrical and electronic equipment must be disposed of separately
from normal waste at the end of its operational lifetime. Please dispose
of this product by taking it to your local collection point or recycling centre
for such equipment. This will help to protect the environment in which we
all live.

LIMITED SOFTWARE WARRANTY POLICY

All the software provided with, or purchased especially for, HHB products has been tested for
functionality. HHB Communications Ltd will make all reasonable efforts to correct reported
software defects for future releases subject to technical and economic practicality. HHB
Communications Ltd makes no warranty or representation either express or implied with
respect to the system’s performance or fitness for a particular purpose.

In no circumstances will HHB Communications Ltd be liable for direct or indirect damages
arising from any defect in the software or its documentation. Further, HHB Communications
Ltd will not be liable for any loss of or damage to programs, sounds, audio recording, sequences
or data stored in or used with HHB products, including the cost of recovery.

The disclaimers above are exclusive and take precedence over all others, oral or written,
express or implied, to the extent permitted by law in the geographical area of the product’s
sale. No employee of HHB Communications Ltd, agent, distributor or employee of an agent or
distributor is authorised to offer any variation.

TRADEMARKS

All trademark, product and company names are the property of their respective owners.

42

http://www.flashmic.info