Audio Technology NAGRA MEZZO User Manual

USER MANUAL NAGRA MEZZO

Audio Technology Switzerland 2013

MEZZO Audio Technology Switzerland S.A.

- 2 -

CONTENT

IMPORTANT………………………………………………………………………………………………….………..- 4 -

MEZZO STANDARD PACKAGE……………………..……………………..……………………..…………….….- 5 -

1 BEFORE RECORD

1 PANEL DESCRIPTION………..………………..………………..………………..………………………….……- 7 -

2 RECORDING WINDOW DESCRIPTION………..………………..………………..………………..……..……- 9 -

3 BATTERIES………..………………..………………..………………..………………..………………….………- 10 -

4 HOLD ………..………………..………………..………………..………………..………………..…………….…- 11 -

5 DATE & TIME………..………………..………………..………………..………………..………………..………- 11 -

6 SELECT THE FOLDER………..………………..………………..………………..………………..……….……- 12 -

7 DELETE FILE………..………………..………………..………………..………………..………………..………- 13 -

2 RECORD

1 RECORDING AUDIO IN THE FIELD………..………………..………………..………………..…………….…- 15 -

2 ENTERING MARKS………..………………..………………..………………..………………..…….………..…- 16 -

3 ADJUSTING INPUT LEVELS………..………………..………………..………………..………………..………- 16 -

4 CHANGE RECORDING FORMAT………..………………..………………..………………..……………..……- 16 -

5 AUTOMATIC GAIN CONTROL (AGC) ………..………………..………………..……………………….………- 18 -

6 VOLUME OPERATED RECORDING (VOR) ………..………………..………………..………………..………- 19 -

7 MICROPHONE POWER SUPPLY(Mic Power) ………..………………..………………..……………..………- 20 -

8 FILTER………..………………..………………..………………..………………..………………..……...........…- 21 -

MEZZO Audio Technology Switzerland S.A.

- 3 -

3 PLAYBACK

1 PLAYBACK………..………………..………………..………………..………………..………………..…….……- 23 -

2 A-B REPEAT………..………………..………………..………………..………………..………………..…...……- 24 -

3 REPEAT MODE………..………………..………………..………………..………………..………………………- 25 -

4 MENUS

1 OPERATIONAL APPROACH………..………………..………………..………………..……………….…..……- 27 -

2 OPTIONS………..………………..………………..………………..………………..………………..…..……..…- 28 -

5 TROUBLE SHOOTING

1 SYSTEM TIPS………..………………..………………..………………..………………..…………………..……- 36 -

2 FAQ………..………………..………………..………………..………………..………………..……………..……- 38 -

6 ADDITIONAL INFO

1 SPECIFICATIONS………..………………..………………..………………..………………..……………...……- 41 -

2 SAFETY STATEMENT………..………………..………………..………………..………………..…….….…..…- 43 -

MEZZO Audio Technology Switzerland S.A.

- 4 -

IMPORTANT

Disclaimer

All rights reserved. Without the written approval in advance, this manual and machine software whether in

whole, or in part, cannot be copied, translated, nor compressed into computer-readable data.

Audio Technology Switzerland is not responsible for incidents, consequences or losses due to the violation of

the IP rights.

Audio Technology Switzerland reserves the right to modify this manual and all the included information at any

time without prior notification.

Trademarks Notices

NAGRA is the registered trademark of NAGRAVISION SA.

IBM and PC/AT are registered trademarks of the international business recorder company.

Microsoft and Windows are Microsoft Corporation’s registered trademarks in America and other countries.

Apple and Macintosh are Apple Computer Inc.’s registered trademarks in America and other countries.

Pentium is Intel Corporation’s registered trademark.

Other trademarks and registered trademarks are owned by their respective companies.

MEZZO Audio Technology Switzerland S.A.

- 5 -

MEZZO STANDARD PACKAGE

The package includes:

1 NAGRA MEZZO
1 USB cable
1 Wrist strap
1 Foam Windshield

MEZZO Audio Technology Switzerland S.A.

- 6 -

MEZZO Audio Technology Switzerland S.A.

- 7 -

1 PANEL DESCRIPTION

1. BUILT-IN MIC (LEFT CHANNEL)

2. BUILT-IN MIC (RIGHT CHANNEL)

3. LCD SCREEN

4. FOLDER key

5. MENU key

6. PLAY/PAUSE key

7. PREV/FF/LEVEL- key

8. NEXT/FB/LEVEL+ key

9. REC/OK key

10. STOP key

11. MARK/A-B key

12. POWER key

13. DELETE key

14. SPEAKER

15. SCREW HOLE

16. BATTERY BOX

MEZZO Audio Technology Switzerland S.A.

- 8 -

17. PHONE JACK

18. VOLUME + key

19. VOLUME - key

20. HOLD switch

21. HAND STRAP HOLE

22. MIC IN JACK

23. LINE IN JACK

24. USB INTERFACE

MEZZO Audio Technology Switzerland S.A.

- 9 -

2 RECORDING WINDOW DESCRIPTION

1 Current Date & Time

2 Battery status

3 Recording file format

12 formats can be set: HPCM-S / HPCM-M / MPCM-S /

MPCM-M / LPCM-S / LPCM-M / HMP3-S / HMP3-M / MMP3-S /

MMP3-M / LMP3-S / LMP3-M

4 Current folder

Folder A / Folder B / Folder C / Folder D / Folder E / Folder MUSIC

5 MARK position / MARK counter

3 marks can be entered when recording files.

6 Input Devices

IMIC / EMIC / LINE

7 Filter status

Filter active, this symbol appears

8 VOR or AGC status

9 PEAK status

10 Level meter

11 Run status

12 Recording duration

13 Recording time remaining

14 File name

MEZZO Audio Technology Switzerland S.A.

- 10 -

3 BATTERIES

Insert 2 “AA” batteries taking care of the correct polarity and close the

cover. Rechargeable batteries (NiCd or Ni-mH) can also be used but

they cannot be charged inside the MEZZO.

The battery type can be chosen in the “System Settings” menu. Please

choose the correct battery type according to battery so that MEZZO can

display the correct remaining power level.

Installing batteries

1. According to the figure, slide and open the battery compartment

cover.

2. Insert 2 “AA” batteries taking care of the correct polarity.

3. Replace the cover.

Symbol Dry or rechargeable battery

Sufficient

About 30% remaining

About 15% remaining

About 5% remaining

MEZZO Audio Technology Switzerland S.A.

- 11 -

4 HOLD

Sliding HOLD to [ON] will lock all keys to prevent activation of the keys
accidentally during all modes, including power off.

Once the keyboard is locked, it doesn’t work no matter what keys you

press, the screen will show “HOLD”. To UNLOCK the MEZZO, please

slide HOLD to [OFF].

HOLD [ON]: Keys are locked.

HOLD [OFF]: Keys are unlocked.

5 DATE & TIME

Please set up DATE & TIME before the first use or following a reboot

or long periods without use. Setting correct system DATE & TIME, will

guarantee the accuracy of record time during recording.

You can check current time during recording.

1. Press the <MENU> key in STOP mode to enter the settings.

2. Select [System Settings] and press <REC/OK> key to enter.

3. Press < >< > key to select [Date & Time] and press <REC/OK> key to confirm.

4. Press < > < > key to select desired DATE & TIME information, press < >< > keys to set value and

MEZZO Audio Technology Switzerland S.A.

- 12 -

press <REC/OK> key when setting is completed.

5. Press < > key to return to the main menu or press <MENU> key to exit.

Note:

Time and date information will be kept while you change batteries.

6 SELECT THE FOLDER

The MEZZO has 6 built-in default folders, they are [Folder A] [Folder B] [Folder C] [Folder D] [Folder E]

[Folder MUSIC].

These 6 folders are displayed as [A] [B] [C] [D] [E] [M]

. The MEZZO can identify audio files stored in these 6 folders and the root directory.

. Non audio files stored in [A] [B] [C] [D] [E] [M] and sub-folders cannot be recognized.

. Other folders and internal files in the memory cannot be recognized.

SWITCH FOLDER

1. Press <FOLDER>, popup folder list will appear.

2. Press the < >< > key to select target folder, press the <REC/OK> key to confirm.

3. Press the <FOLDER> key to exit.

Note:

.

[A] [B] [C] [D] [E] [M] are default system folders. Please note that when deleting these 6 folders, they will automatically

re-create upon start-up.

MEZZO Audio Technology Switzerland S.A.

- 13 -

7 DELETE FILE

1. Press the < DELETE> key to show the DELETE MENU.

2. Delete files

Delete the file

.Press < >< > to select [Delete this file] and press <REC/OK> key.

.Press < >< > key to select [OK] and press <REC/OK> key to confirm.

Delete all the files in the folder

.Press < >< > to select [Delete files in this folder] and press <REC/OK> key.

.Press < >< > to select [OK] and press <REC/OK> to confirm.

Delete bookmark

.Press < >< > to select [Delete bookmark] and press the <REC/OK> key.

.Press < >< > to select [OK] and press <REC/OK> to confirm.

3. If you don’t need to delete the file, please select [CANCEL] at STEP 2.

MEZZO Audio Technology Switzerland S.A.

- 14 -

MEZZO Audio Technology Switzerland S.A.

- 15 -

1 RECORDING AUDIO IN THE FIELD

Before making a recording the compression mode needs to be chosen.

If nothing is set in the templates prior to the first recording, then the

“default” settings will be adopted. Please check the batteries before

recording to make sure that recorder has enough battery power to

record normally.

Press the centre key once more. The red LED will stay red and the

record symbol is shown on the display. The levels can be seen on the

display and adjusted during recording as necessary, assuming the AGC

is not activated.

1 START recording

·Point the microphone towards the sound source.

·Press <REC> key to start recording.

·If screen status icon display ● and the recording LED is on, this

indicates recording is under way.

2 PAUSE recording

·Press < > key to pause.

·Press < > key again to continue to record.

3 STOP recording

·Press and hold the < > key for 3 seconds until recording stops.

MEZZO Audio Technology Switzerland S.A.

- 16 -

2 ENTERING MARKERS

During record, press the <MARK/A-B> key to enter markers.

Note:

3 markers can be entered when recording files.

3 ADJUSTING INPUT LEVELS

In stereo or mono mode the input level can be adjusted using the < > or < > keys in steps of 1 dB from 0
dB to 40 dB for the microphone input.

1. Press <REC> key to start recording.

2. Press <

/

LEVEL+> key to increase input gain during recording process.

Press <

/

LEVEL-> key to decrease input gain during recording process.

3. Press and hold the < > key to stop recording.

Note:

. AGC must be OFF.

4 CHANGE RECORDING FORMAT

The MEZZO supports 12 recording formats. PCM is up to 96 KHz 24 bit WAV lossless stereo. PCM format

files are larger, but have higher fidelity. MP3 format file has good recording quality, yet smaller capacity.

MEZZO Audio Technology Switzerland S.A.

- 17 -

1. Press the <MENU> key to enter the settings.

2. Press the < >< > key to select [Recording settings] and press the <REC/OK> key to enter.

3. Press the < >< > key to select [Format] and press the <REC/OK> key to enter.

4. Press the < >< > key to select the desired recording format and press the <REC/OK> key to confirm.

5. Press the <MENU> key to exit settings.

The different recording formats are as follows:

RECORDING FORMAT CODEC CHANNEL

HPCM-S 96kHz 24Bits PCM Stereo

HPCM-M 96kHz 24Bits PCM Mono

MPCM-S 48kHz 24Bits PCM Stereo

MPCM-M 48kHz 24Bits PCM Mono

LPCM-S 48kHz 16Bits PCM Stereo

LPCM-M 48kHz 16Bits PCM Mono

HMP3-S 48kHz 320kbps MP3 Stereo

HMP3-M 48kHz 160kbps MP3 Mono

MMP3-S 48kHz 256kbps MP3 Stereo

MMP3-M 48kHz 128kbps MP3 Mono

LMP3-S 48kHz 128kbps MP3 Stereo

LMP3-M 48kHz 64kbps MP3 Mono

MEZZO Audio Technology Switzerland S.A.

- 18 -

5 AUTOMATIC GAIN CONTROL (AGC)

AGC operates in the digital domain and allows the operator to make recordings without under / over

modulating when the audio levels are unpredictable. If the level of sound is weak, AGC increases the gain

automatically. When the volume of sound is loud, AGC reduces gain so that recording level will not exceed

limits, to avoid distortion.

1. Press the <MENU> key to enter the settings.

2. Press the < >< > key to choose [Recording settings] and press the <REC/OK> key to enter.

3. Press the < >< > key to choose [AGC] and press the <REC/OK> key to enter.

4. Press the < >< > key to choose [ON] and press <REC/OK> key to confirm

[OFF]: Turns off AGC

[ON]: Turns on AGC

5. Press the <MENU> key to exit settings.

6. Press the <REC> key to start recording.

When “AGC” is used, LEVEL adjustments will not work.

7. Press and hold the < > key to stop recording.

MEZZO Audio Technology Switzerland S.A.

- 19 -

6 VOLUME OPERATED RECORDING (VOR)

By monitoring the input sound level, the MEZZO can switch to record mode automatically. The MEZZO stops

recording automatically when sound level drops below a certain pre-set level. When the sound level

increases again, it restarts recording.

If sound volume is lower than the pre-set level for 10 seconds, recording will stop and the MEZZO returns to

PAUSE RECORDING so that you can save disk space and reduce empty file content.

1. Press the <MENU> key to enter the settings.

2. Press the < >< > key to select [Recording settings] and press the <REC/OK> key to enter.

3. Press the < >< > key to select [VOR] and press the <REC/OK> key to enter.

4. Press the < >< > key to select sensitivity level and press the <REC/OK> key to confirm.

. [OFF]: Turn off VOR

. [L-Sensitivity]: Turn on VOR and sensitivity is set to low. More volume needed to start recording.

. [M-Sensitivity]: Turn on VOR and sensitivity is moderate. Moderate volume will start recording.

. [H-Sensitivity]: Turn on VOR and sensitivity is high. Less volume needed to start recording.

5. Press the <MENU> key to exit settings.

6. Press the <REC> key to start recording.

7. Press and hold the < > key to stop recording.

Note:

AGC will not work when VOR is on.

MEZZO Audio Technology Switzerland S.A.

- 20 -

7 MICROPHONE POWER SUPPLY (Mic Power)

Some external microphones require power to be supplied from the recorder. The MEZZO can provide 3V

power to supply external electret microphones. Please set this function when you need to turn on the power

supply.

1. Press the <MENU> key to enter the settings.

2. Press the < >< > key to select [Recording settings] and press the <REC/OK> key to enter.

3. Press the < >< > key to select [Mic Power] and press the <REC/OK> key to enter.

4. Press the < >< > key to select [ON] and press the <REC/OK> key to confirm.

. [OFF]: Turns off microphone power supply.

. [ON]: Turns on microphone power supply.

5. Press the <MENU> key to exit settings.

Note:

. If you supply power unnecessarily to a microphone, it may cause noise during the recording, and reduce battery life.

8 FILTER

Turn on Filter to decrease low-frequency noise during record. Low-frequency noise, for instance, could be the

MEZZO Audio Technology Switzerland S.A.

- 21 -

low-frequency sound of the wind or the “hum” noise from an electrical device.

1. Press the <MENU> key to enter the settings.

2. Press the < >< > key to select [Recording settings] and press the <REC/OK> key to enter.

3. Press the < >< > key to select [Filter] and press the <REC/OK> key to enter.

4. Press the < >< > key to select [ON] and press the <REC/OK> key to confirm.

[OFF]: Turns off Filter.

[ON]: Turns on Filter.

The top of screen displays "

" indicating filter is on.

5. Press the <MENU> key to exit settings.

MEZZO Audio Technology Switzerland S.A.

- 22 -

MEZZO Audio Technology Switzerland S.A.

- 23 -

1 PLAYBACK

The MEZZO supports: WAV, MPEG1-layerⅡ(MP2), MPEG1-layerⅢ(MP3) and WMA playback formats.

1. START PLAYBACK

. Press the < > key and the machine starts play the selected file
immediately.

2. PAUSE PLAYBACK

. Press the < > key to pause during playback process.

. Press the < > key again, to continue playback.

3. STOP PLAYBACK

. Press < > to stop the file playback.

4. PREVIOUS TRACK / NEXT TRACK

. Press < > to skip to the start of the previous track.

. Press < > to skip to the start of the next track.

Note:

If you added bookmarks, press

< >< > key to jump between

bookmarks.

5. REWIND / FORWARD

. Press < > without letting go, then release key to stop rewind.

. Press < > without letting go, then release key to stop forward.

MEZZO Audio Technology Switzerland S.A.

- 24 -

2 A-B REPEAT

1. Press the < >< > key to select the file.

2. Press < > to start playback.

3. Playback to the start of the portion to be repeated, press <MARK/A-B> to set the start point A.

. Screen displays: A

4. Playback to the ending of the portion to be repeated, press <MARK/A-B> key again to set-up the B point.

. Screen displays: A-B

5. Exit A-B repeat mode

. Press the <MARK/A-B> key at third time, exit A-B mode and continue to playback the file.

. Press the < > key to exit A-B repeat mode and stop playback.

Note:

. Rewind / Forward works normally under the A-B repeat mode.

. You cannot use A-B repeat mode across tracks.

. You can pause playback while in A-B repeat mode.

MEZZO Audio Technology Switzerland S.A.

- 25 -

3 REPEAT MODE

You can set the playback mode to three modes: [Sequential], [Loop Once] or [Loop].

1. Press the <MENU> key to enter settings.

2. Press < >< > to select [Playback Settings] and then press the <REC/OK> key to enter.

3. Press < >< > to select [Repeat] and press <REC/OK> key to enter.

4. Press < >< >> to select cycle mode and press the <REC/OK> key to confirm.

. [Sequential]: Playback all the files in the folder in order, then playback stops.

. [Loop Once]: Repeat the file.

. [Loop]: Repeat all the files in folder.

5. Press the < > key to move back through the menu or press <MENU> to exit the settings menu.

6. Press < > to playback the file.

. No icon when using Sequential.

. Icon displays under Loop Once mode.

. Icon displays under Loop mode.

7. Press < > key to stop.

MEZZO Audio Technology Switzerland S.A.

- 26 -

MEZZO Audio Technology Switzerland S.A.

- 27 -

1 OPERATIONAL APPROACH

All of the settings and parameters of the MEZZO are
made through a selection of menu’s.
Press the <MENU> key and a sub-menu appears giving
access to the “Recording Settings”, “Playback Settings”
and “System Settings”.

1. Enter menu

. Press the <MENU> key to enter sub-menu in STOP

mode.

. Press the <MENU> key to enter “Playback settings”

in PLAYBACK mode.

2. Up/down through menus

. Press < > and scroll up to browse menu options.

. Press < >and scroll down to browse menu options.

3. Enter this option

. Press the < > key to select option.

4. Set up parameter

. Press the < > key to set up parameter and press the <REC/OK> key to confirm.

5. Exit menu

. Press the < > key to back-step through the menu.

. Press the <MENU> key to exit and return to STOP mode.

MEZZO Audio Technology Switzerland S.A.

- 28 -

2 OPTIONS

MEZZO Audio Technology Switzerland S.A.

- 29 -

MEZZO Audio Technology Switzerland S.A.

- 30 -

Recording settings

Format Set recording format.

[HPCM-S]: 96kHz-24Bits PCM Stereo

[HPCM-M]: 96kHz-24Bits PCM Mono

[MPCM-S]: 48kHz-24Bits PCM Stereo

[MPCM-M]: 48kHz-24Bits PCM Mono

[LPCM-S]: 48kHz-16Bits PCM Stereo

[LPCM-M]: 48kHz-16Bits PCM Mono

[HMP3-S]: 48kHz-320kbps MP3 Stereo

[HMP3-M]: 48kHz-160kbps MP3 Mono

[MMP3-S]: 48kHz-256kbps MP3 Stereo

[MMP3-M]: 48kHz-128kbps MP3 Mono

[LMP3-S]: 48kHz-128kbps MP3 Stereo

[LMP3-M]: 48kHz-64kbps MP3 Mono

Page 16

AGC Set up AGC “ON” or “OFF”.

[OFF]:Turn off AGC

[ON]:Turn on AGC

Page 18

VOR Set up VOR “ON” or “OFF”.

[OFF]:Turn off VOR

[L-Sensitivity]:Turn on VOR, Higher volume needed to start recording

[M-Sensitivity]:Turn on VOR, moderate volume needed to start recording

[H-Sensitivity]:Turn on VOR, lower volume needed to start recording

Page 19

MEZZO Audio Technology Switzerland S.A.

- 31 -

MIC Power Set up microphone power supply “ON” or “OFF”

[OFF]:Turn off microphone power supply

[ON]:Turn on microphone power supply

Page 20

Filter Set up recording filter “ON” or “OFF”

[OFF]:Turn off recording filter

[ON]:Turn on recording filter

Page 21

Playback Settings

Repeat Set up the repeat mode.

[Sequential]:Playback the files in order, until the last one. Then playback

stops.

[Loop Once]:Repeat the file.

[Loop]:Repeat all the files in folder.

Page 24

System Settings

DATE & TIME

During the recording process, screen displays DATE & TIME.

This sets the master system clock.

Page 11

Recording LED Set recording light “ON” or “OFF”.

[OFF]: During recording, record LED is OFF

[ON]: During recording, record LED flashes.

Beep

Beep is the sound when you press any key.

You can turn ON or OFF the beep function using this option.

[OFF]:Turn off beep

[ON]:Turn on beep

Notes:

MEZZO Audio Technology Switzerland S.A.

- 32 -

. The beep tone can only be heard through headphones.

Speaker

Set up built-in speaker “ON” or “OFF”

[OFF]:Internal speaker OFF

[ON]:Internal speaker ON

Note:

. Built-in speaker will be cut when headphones are connected.

Screen Timeout Set the display backlight “ON” or “OFF”

[NEVER] :Screen backlight remains ON permanently.

[10 SECONDS]:Screen backlight goes off automatically after 10 seconds.

[30 SECONDS]:Screen backlight goes off automatically after 30 seconds

[60 SECONDS]:Screen backlight goes off automatically after 60 seconds

Note:

. Pressing any key will re-light the display for the selected time period.

Shut Down

Timeout

Set automatic shutdown time.

[NEVER] :Never turn off the recorder

[30 SECONDS]:Recorder turns off automatically after 30 seconds of

no-operation.

[60 SECONDS]:Recorder turns off automatically after 60 seconds of

no-operation.

[180 SECONDS]:Recorder turns off automatically after 3 minutes of

no-operation.

[300 SECONDS]:Recorder turns off automatically after 5 minutes of

no-operation.

MEZZO Audio Technology Switzerland S.A.

- 33 -

Note:

. When recorder is in RECORD, PLAYBACK AND PAUSE modes,

automatic shutdown is inhibited.

Battery Type Please set according to the current batteries being used so that the

MEZZO can display the correct remaining power accurately.

[DRY BATTERY]:Choose this option when using 2 regular alkaline “AA”

dry batteries.

[RECHARGEABLE BATTERY]:Choose this option when using

rechargeable batteries.

Disk Information Check total capacity, available capacity and used capacity of the internal

memory.

[CAPACITY]

[AVAILA B L E]

[USED]

Version Check software version, hardware version and loader program version.

[SOFTWARE]

[HARDWARE]

[LOADER]

Format Disk Formatting disk can delete all files in recorder rapidly.

Notes:

. [A] [B] [C] [D] [E] [M] are system folders, they will be re-created after

formatting.

System Reset Reset the following functions to their default values.

MEZZO Audio Technology Switzerland S.A.

- 34 -

[Format]:HMP3-S

[AGC]:OFF

[VOR]:OFF

[Mic Power]:ON

[Filter]:OFF

[Repeat]:Sequential

[Recording LED]:ON

[Beep]:OFF

[Speaker]:ON

[Screen Timeout]:30 seconds

[Shut Down Timeout]: 300 seconds

[Battery Type]:Dry cells

[Folder]:A

[LEVEL]:15

[VOLUME]:-32

Note:

. System settings can only be accessed in STOP mode.

. Long press the <MENU> key in STOP mode to enter settings menu. Settings menu includes [Recording settings] [Playback

Settings] and [System Settings] .

MEZZO Audio Technology Switzerland S.A.

- 35 -

MEZZO Audio Technology Switzerland S.A.

- 36 -

1 SYSTEM TIPS

While using the MEZZO, some information tips or error messages may appear. Primary causes and solutions

are listed below.

Note:

. You can try the following instructions to troubleshoot the problem yourself. Please contact to our customer support for

additional information.

SYSTEM TIPS Causes & Solution

"Low Power" . Batteries are exhausted

——Change internal batteries

"HOLD" . HOLD ON

——Switch to HOLD switch to the OFF position and retry

"No File" . No files in current folder

"Failed to record" . System error

——Reinstall default settings and format disk

"Failed to open work folder" . Disk or system error

——Turn off recorder, reboot and retry. If problem prevails, re-format disk

"Failed to scan file" . Disk or system error

——Turn off recorder, reboot and retry. If problem prevails, re-format disk

MEZZO Audio Technology Switzerland S.A.

- 37 -

"Too many files in the folder " . The MEZZO can read the first 1000 files in any folder.

——Delete some files

"Failed to open file" . File is damaged

. File format is unsupported

"Low free space" . Internal memory is full

——Delete some files

"Disk Error and power off" . Error occurs

——Format disk

"Format Failed" . Problem occurs when formatting disk. Cannot complete formatting

——Please retry formatting. If problem continues, use a computer to format

disk

"AGC is opening." . Cannot adjust LEVEL or set VOR under this condition

——Retry to adjust LEVEL or set VOR after cancelling the AGC function

"VOR is opening. " . Cannot open AGC under this condition

——Retry to open AGC after cancelling VOR function

" The file can't FF " . Some WMA files do not support fast forward mode

" The file can't FB" . Some WMA files do not support rewind mode

" The file can't set AB" . Some WMA files do not support A-B repeat mode

" The file can't mark" . Some WMA files cannot accept bookmarks

MEZZO Audio Technology Switzerland S.A.

- 38 -

2 FAQ

You can try the following instructions to troubleshoot problems. Please contact to our after-sales service department if the

problems continue.

FAULT PHENOMENON CAUSES AND SOLUTION

Cannot Boot . Wrong battery polarity

——Correct polarity

. Low battery

——Install new batteries

. HOLD ON

——Switch to HOLD OFF and reboot

Speaker Doesn’t Work . Lowest volume is set

——Increase the volume

.Headphone inserted

——When inserting headphone, speaker stops working automatically.

Pulling out headphone connector, allows the internal speaker to work

again.

. The option “SPEAKER” in “System Setting” is “OFF”.

——Set the option “ON”

When Inserting Headphone,

The headphone doesn’t

. Headphone failure

——Change a headphone

MEZZO Audio Technology Switzerland S.A.

- 39 -

work . Headphone not inserted correctly into the bottom jack socket

——Please insert headphone to the bottom of jack

Cannot Record . Not enough storage capacity

——Delete some files or format disk

Recorded file empty . Recording level too low, MIC did not receive any sound

——increase record gain and record again

Recorded File Aborts

Automatically

. VOR is ON

——Record pauses automatically when level is below VOR trigger level.

Low Volume of Recorded

File

. Some audio details cannot be heard due to low volume

——Turn up volume

. Gain too low when recording causes level of recorded file to be too low

——External software may be used to enhance recorded level. Please be

careful to use a suitable record gain in future

Recorder Stop Functioning

Normally

. This may be caused by battery contact fault or low battery reserve. The

MEZZO may crash

——Take out batteries and replace them with 2 new batteries and retry

. Disk or system error

——Recover system setting and format disk

Screen Time Display as

"□□□□-□□-□□ □□:□□:□□"

. No file in recorder

——If there is no file in recorder, time information cannot be displayed

Incomplete Menu Display . In the playback process, “Recording settings” and “System Settings” are

not adjustable, so the menu will only display “Playback Settings”

MEZZO Audio Technology Switzerland S.A.

- 40 -

MEZZO Audio Technology Switzerland S.A.

- 41 -

1 SPECIFICATIONS

GENERAL

Compression type PCM ,MP3

Sampling rate 96KHz

Playback format WAV ,MP2 ,MP3 ,WMA

Frequency response 20Hz ~40KHz,+-0.5dB

SNR(Playback) 94dB (bandwidth 20Hz~22KHz,ASA “A” weighted)

SNR (MIC channel) 90dB (Mic input +19dB Pre-amp + A/D, 20Hz to 22KHz,ASA “A” weighted)

Dynamic range(Line in) >90dB

MIC EIN >122dB A weights

PHYSICAL

Weight 92g (without batteries)

Dimensions 135.2(L)*44(W)*22.5(H) mm

Operating temperature 0~70℃

Operating humidity 20%~80%

MEZZO Audio Technology Switzerland S.A.

- 42 -

INPUTS & OUTPUTS

MIC filter 100Hz~40KHz

MIC Max. Gain 40dB

MIC Min. Gain 0dB

Headphone Max. outputs 30mW (left) + 30mW (right) (16Ω)

Built-in MIC Built-in stereo microphone

MIC IN 3.5 mm stereo jack connector

LINE IN 3.5 mm unbalanced stereo jack connector

Stereo headphone output 3.5 mm stereo jack connector

POWER SUPPLY

Battery 2 × “AA” dry or rechargeable batteries

USB Mini USB jack

Consumption 138mW(Standby) / 192mW(Recording)

MEZZO Audio Technology Switzerland S.A.

- 43 -

2 SAFETY STATEMENT

Product Safety

. Do not place any heavy item on the recorder

. Do not drop the recorder or accessories

. Do not use the MEZZO in very wet environments

. Do not use chemicals or detergents to clean the recorder

. Do not use the recorder in excessively dusty or smoky areas

. Do not use the recorder when there is lightening

. Do not open / disassemble the recorder

. Do not use the MEZZO close to ferromagnetic substances

Battery Safety

. Do not put the batteries into an open fire or heat the batteries excessively; this will lead to battery explosion.

. Do not invert battery polarity.

. Do not mix new batteries with the semi-used batteries

. If batteries appear hot, please stop using the MEZZO immediately.

. Do not attempt to charge the alkaline batteries

. Please keep batteries out of the reach of the children.

. Do not use the damaged batteries.

Audio Technology Switzerland S.A.

Chemin de l’Orio, 30A

1032 Romanel-sur-Lausanne

Switzerland

Tel : [phone]

Fax : [phone]

www.nagraaudio.com

[email protected]