Musicam Liberty User Manual
LIBERTY
Users Guide
TM
MUSICAM USA
LIBERTY Users Guide
MUSICAM USA
Corporate Computer Systems, Inc.
670 North Beers Street • Building 4
Holmdel, NJ 07733 USA
Phone 732-739-5600 • Fax 732-739-1818
http://www.musicamusa.com
First Printing, June 2002
2
Table of Contents
INTRODUCTION.................................................................................................................................................................................................... 3
Installation and Usage Tips ..................................................................................................................................................................................4
CONTROLS & CONNECTIONS ...................................................................................................................................................................... 5
QUICK START GUIDE for the Beginner.................................................................................................................................................... 6
Operating the MENU NAVIGATION KNOB................................ ................................................................................................................6
Setup for Microphone Input................................ ................................................................................................................................................6
GETTING STARTED............................................................................................................................................................................................ 8
Setting Factory Defaults................................................................................................................................................................................... 8
Dialing a number....................................................................................................................................................................................................9
Dialing From An Office or Hotel Room ................................ ...........................................................................................................................9
Handset Dialing .......................................................................................................................................................................................................9
Memory Dialing from Interstate or International call areas....................................................................................................................10
How to store a phone number...........................................................................................................................................................................10
Storing and naming a number and/or editing a stored number................................ ..............................................................................11
Quick Function Tips ............................................................................................................................................................................................12
Default Func tion Keys................................ .........................................................................................................................................................12
Function Key Options ..........................................................................................................................................................................................13
DETAILED CONFIGURATION......................................................................................................................................................................14
Menu Tree...............................................................................................................................................................................................................14
Setup Menu.............................................................................................................................................................................................................16
Sub Menus of 01 View Configuration.............................................................................................................................................................16
Sub Menus of 02 Codec Setup...........................................................................................................................................................................19
Sub Menus of 03 Modem setup .........................................................................................................................................................................19
Sub Menus of 04 Dialing Setup .........................................................................................................................................................................20
Sub Menus of 05 Unit Setup................................ ..............................................................................................................................................21
Sub Menus of 06 Advanced Setup ....................................................................................................................................................................22
Sub Menus of 07 Reset Functions.....................................................................................................................................................................23
Sub Menus of 08 Test Modes.............................................................................................................................................................................24
Sub Menus of 09 Memory Setup .......................................................................................................................................................................24
Sub Menus of 10 Unit Details ............................................................................................................................................................................24
HOW THE LIBERTY WORKS.......................................................................................................................................................................24
Intelligent Gain Control (IGC)................................ .........................................................................................................................................25
DSP Based Compressor Limiter.......................................................................................................................................................................25
Modem Negotiation and Line Quality.............................................................................................................................................................25
MASTER SLAVE OPERATION.....................................................................................................................................................................25
PEAK LEVEL METER ......................................................................................................................................................................................26
THEORY OF OPERATION.............................................................................................................................................................................26
Preparing to use the Toolbox application......................................................................................................................................................27
Connecting LIBERTY to the PC......................................................................................................................................................................27
Menu Items.............................................................................................................................................................................................................28
General Configuration........................................................................................................................................................................................30
POTS Setup............................................................................................................................................................................................................30
Local Control................................ .........................................................................................................................................................................31
Remote Control .....................................................................................................................................................................................................32
Line Monitor..........................................................................................................................................................................................................32
Chat ..........................................................................................................................................................................................................................33
Functions .................................................................................................................................................................................................................35
Software Upgrade .................................................................................................................................................................................................37
Upgrading Software.............................................................................................................................................................................................38
Mic / Line Audio In Connector................................ .........................................................................................................................................38
Program Out Connector.....................................................................................................................................................................................38
RS 232 Interface Connector...............................................................................................................................................................................38
Appendix A—One Year Limited Warranty
Appendix B— Liberty Technical Specifications ..........................................................................................................................................41
.................................................................................................................40
INDEX
..........................................................................................................................................................................................................42
Liberty USERS GUIDE
INTRODUCTION
MUSICAM USA the World’s Leader in codecs gives you the new LIBERTY “POTS only” codec intended
for bi-directional, remote and unattended operation.
With the introduction of the Voyager POTS Codec, MUSICAM USA has demonstrated that stable high
bandwidth links with unfailing audio and data is the new reality for broadcasting over an analog telephone
line. The new Liberty codec incorporates the same superb DSP algorithm delivering crystal clear 15kHz
mono audio in real time at bit rates as low as 24kbps with very short 100ms coding delay and a minimal loss
of quality over a standard telephone line.
LIBERTY is the economical model of MUSICAM USA’s POTS Line. It offers the same excellent audio
quality of the Voyager at a much lower price.
Liberty provides audio-link opportunities previously impossible or simply too expensive. Broadcast
journalists and sports casters now have an easy to use, high quality, compact portable field codec. LIBERTY
can be transported as carry-on baggage allowing convenient worldwide coverage with minimal equipment.
Using the LIBERTY is as simple as plugging it into a POTS phone line and dialing the destination number.
The receiving Liberty automatically answers the call and establishes the link. For POTS connections, a builtin modem negotiates the best possible data rate for high quality low -noise and distortion free, bi-directional
audio.
LIBERTY features include:
High quality audio at very low bit rates (as low as 9600bps)
•
Remote control features for remote operation
•
Special modem for POTS codec operation
•
Automatic link re-c onnect in the event of line dropouts
•
Extensive menu system caters for most individual applications
•
Fast and easy configuration via a Windows 9*/ME/2K/XP software application: Toolbox.
•
Liberty
is basically the same as the
• One
• One
balanced Microphone/Line input; standard XLR three -pin male, Input 1.
unbalanced input channel; Input 2 is provided on a pair of RCA connectors. This is summed to
MUSICAM USA Voyager. EXCEPT;
a single audio (mono) signal.
Liberty's Intelligent Gain Control (
•
DSP Based Compressor Limiter.
•
• Two-peak
Three peak audio level bar-graphs are shown on the LCD display; each input separately as well as
•
audio LED’s are provided to indicate output has reached +16dBu.
) on both inputs.
I.G.C
their summed (DSP) audio stream. Their order is Input 1(top), Sum (middle) then Input 2(bottom).
A
•
cell phone
One CMOS relay facility is provided via the DB9 connector (pins 1&6) for remote control of
•
jack (3.5mm) is provided for standard bi-directional phone quality audio.
equipment.
• NOTE
: The following options are
available on the Liberty: ISDN, Rack mounting and Data
NOT
Software.
The Liberty has the same software upgrade capabilities as the Voyager Codec. Full upgrades are possible
using the MUSICAM USA Toolbox software. We are continually updating our manuals and software…Get
the latest at www.musicamusa.com.
it has the following differences:
4
Installation and Usage Tips
While the MUSICAM USA LIBERTY is a very reliable telecom product, its performance will only be as
good as the POTS line that it is operating over. Take precautions to remove these possible interference
sources:
Other telephone handsets
•
Fax machines
•
Computer modems
•
Alarm systems
•
Extension bells
•
Clandestine devices
•
Important precaution on the LIBERTY Telco-line: ENSURE THAT CALL WAITING IS DISABLED!
It is preferable to obtain a dedicated phone line from the Telco without going through a PBX or PABX. If
this is unavoidable, check that the line works BEFORE you try to do a live program. Some of these systems
have poor line characteristics and may make the operation of the LIBERTY unstable.
WARNING: DO NOT CONNECT YOUR LIBERTY TO A DIGITAL PHONE SYSTEM AS
PERMANENT DAMAGE MAY OCCUR. If you are unfamiliar with a particular facility, check that the line
you are given is NOT a digital line. This is very important because if the unit becomes faulty due to the use
of a digital phone system, the Warranty becomes void.
On most good lines, the LIBERTY is normally able to achieve 28,800 bps (Bits Per Second) at a line quality
of approximately 70%. If you are not able to achieve this level of operation, try to connect at a lower bit
rate for 50% line quality
.
CHECK:
Length of the line from your site to the local Exchange or Central Office
•
Presence of stub or party lines on your local loop
•
Earth leakage problem on the line
•
Equipment problem at the Exchange or Central Office
•
It is desirable to have a local loop (The line from your office or home to the local Central Office or
Exchange.) as short as possible. Optimum performance can be expected for lines up to about two miles in
length.
In some countries, it has been the practice to have more than one phone service attached to one line. As
more lines have been installed, the services have been separated but the unused lines have remained
connected to the local loop. Even though the old line may be unused, if it is still present across your local
loop, it may cause problems Selector with your equipment operation.
A good line should have an earth isolation of better than ten meg-ohms. If your line is located in an area
where water is a problem, check out the earth leakage
Although there are many factors at the Telco end that can cause problems, a problem that does occasionally
occur is if the clock on the inte rface codec to your line is not synchronized to the network. A drifting clock
will cause instability and unreliable LIBERTY performance. If you suspect that this could be the problem
then contact your local Telco.
Liberty USERS GUIDE
5
MENU NAVIGATION
Visual
Serial data port
Keypad for Data Entry.
Power
Software controlled send & return
audio adjustment POTS
Headphone
Balanced
Stereo RCA
Cellular hands free
Handset interface for
CONTROLS & CONNECTIONS
Software controlled
audio input pots.
Output
LCD
KNOB:
Rotate to scan Items
Click down to select item.
Function Keys,CLR
Hang Up etc.
Supply
for connection
to a computer
and data
transmission
monitoring
mic/line
input
unbalanced inputs
(summed to mono)
operator connected
calls
POTS line interface
interface for wireles s
broadcasts
Liberty USERS GUIDE
QUICK START GUIDE for the Beginner
Plug the Liberty in and wait for about 15 seconds for the unit to start up and load the operating
software.
Operating the MENU NAVIGATION KNOB
The rotary
MENU NAVIGATION KNOB
and configure LIBERTY.
Rotate
•
viewable on the
• Click
the
MENU NAVIGATION KNOB
LCD screen
the
MENU NAVIGATION KNOB
which is highlighted in [brackets].
NOTE the Keypad key marked CLEAR takes you to the previous screen!
Setup for Microphone Input
Here is an example of how to use the
to set up for a microphone input:
Attach your Audio inputs to the XLR connector.
•
Attach standard Telco cord to RJ11 connector on the rear of your codec.
•
Use the MENU NAVIGATION KNOB to cha nge the Input to Microphone as follows;
•
=
Enter Number: -Ctl: Local IGC: --
DIAL] MEMORY MENU
[
.
MENU NAVIGATION KNOB
(see Controls & Connections on page 7) is used to operate
to
scroll
downwards to
up, down or sideways on lists. The lists are
select
an item in the LCD Screen,
in conjunction with the LCD screen
Main screen – appears after start up
Select a Menu item by rotating the
=
Hit DIAL or ANSWER
Ctl: Local IGC: --
DIAL] MEMORY MENU
[
Setup Menu
[05 Unit Setup]
06-Advanced Setup
07 Reset Functions
Continues on next page…
MENU NAVIGATION KNOB.
The
selected item is identified by a square
bracket:
choice of DIAL, MEMORY or MENU.
Choose
Scroll Down and select
. In this case you have a
[ ]
MENU
.
Unit Setup
.
7
Unit Setup
[01 Set Input Gain]
02 Intelligent Gain
03 Relay Operation
Set Input Gain
INP1: [Microphone]
Changes Saved…
Continue Setup?
[CONTINUE] EXIT
Set Input 1 and 2 knobs to 2 ‘o’clock position. This sets the outgoing program level.
•
To hear outgoing audio through the headphones (plug into rear socket) set the
•
clock and
Receive
You are now SET to GO!
•
Repeat steps 2,4 & 6 for the “Destination” Liberty.
•
You can monitor the output using headphones attached to this Liberty. Alternatively, connect the
•
Return
knob settings.
knob to minimum. To hear return audio from the other end - reverse the
audio program output as desired on the destination Liberty.
o Note: the Return knob on the destination codec is the headphone volume. It does not adjust
the program output level
Using the keypad, enter the telephone number of the destination codec and press the
•
.
Important:
Tips
Ensure you have installed you r unit correctly as instructed in the
section on page 4.
Select
Set Input Gain
.
Scroll to Microphone and Select.
You can select
Continue or Exit
.
You have now changed the Input type.
knob to 3 ‘o’
Send
and
Send
Enter/Dial
key.
Installation and Usage
Liberty USERS GUIDE
GETTING STARTED
Setting Factory Defaults
Restoring to factory default settings is good practice. It gives your LIBERTY a configuration with a
predictable set of options.
FROM THE STARTUP SCREEN HERE’S HOW:
Enter Number:
Ctl: Local IGC: --
[DIAL] MEMORY MENU
-
Ente r Number:
-
Ctl: Local IGC: --
-
DIAL MEMORY
[MENU]
Setup Menu
[01 View Config]
02 Codec Setup
03 Modem Setup
Rotate
MENU NAVIGATION KNOB to
MENU NAVIGATION KNOB
.
select MENU then Click
Scroll using MENU NAVIGATION KNOB to [07 Reset
Functions]
[07 Reset Functions]
08 Test Modes
09 Memory Setup
Reset Functions
Select [
07 Reset Functions] Click MENU NAVIGATION KNOB.
[01 Reset DSP]
02 Reset Settings
03 Reset Phone Mem
Scroll using MENU NAVIGATION KNOB to [02 Reset Settings]
Reset Functions
[02 Reset Settings]
03 Reset Phone Mem
04 reset Funct Mem
Select [02 Reset Settings] by clicking MENU NAVIGATION
KNOB.
Reset Settings
All Current Settings
Will be lost!!!!
[CANCEL] RESET
Scroll
KNOB
right to [RESET] Then select with
MENU NAVIGATION
Select [CONTINUE] and follow prompts to [04 Reset Function Mem].
Changes Saved...
Continue Setup?
[CONTINUE] EXIT
This restores default values to the F1 and F2 keys.
On the Reset Funct Mem screen “All Function Saved will be lost!!!!”
warning is given. Scroll using MENU NAVIGATION KNOB to select
[RESET]. The last display is the same as above.
Select by scrolling the MENU NAVIGATION KNOB [EXIT] then
select by clicking the MENU NAVIGATION KNOB.
9
Enter the telephone number of
remote Liberty using the keypad.
MENU NAVIGATION KNOB
Dialing a number
Here’s how to make a connection from one LIBERTY to another using a standard Pla ne Old Telephone
Service (POTS) telephone line. Connect the telephone line to the modular socket (RJ11) at the rear of the
LIBERTY. Switch on and wait for the self-check functions to complete.
-
POTS CODEC MODE1234567890
Vol: Local
[DIAL] MEMORY MENU
The number appears here.
Then Press
ENTER
DIAL
The LIBERTY will dial the number to establish a connection with the remote Liberty at an initial attempt of
19,200 bps bit-rate. The modems measure the characteristics of the telephone line and negotiate the highest
possible stable data rate for best sound quality.
Dialing From An Office or Hotel Room
Most hotels and offices require dialing an additional digit(s) followed by a pause to gain access to an outside
line. After entering the access number hold the “#” key until a comma (“,”) appears after the access number
on the LCD display. Now enter the rest of the telephone number. A two second pause has now been inserted
after the access digit to allow time for the outside line to be set up for dialing. The length of this pause can
be changed in the “View Config” menu.
Handset Dialing
An external telephone handset can be used to dial a number. This may be necessary if unusual telephone
system conditions cause problems with the LIBERTY dialer. Connect a telephone to the “Handset” modular
connector on the rear panel of the LIBERTY. Using the
then click
MENU NAVIGATION KNOB
=
Enter Number:
Ctl: Local
[DIAL] MEMORY MENU
to select. Then follow the steps below:
-POTS MODE 1234567890
Ctl: Local
DIAL [H-SET]
Modem Init…
Dial External Phone,
Quickly hit ENTER &
Hang-up. (See Manual)
CLEAR to EXIT
MENU NAVIGATION KNOB
[H-SET] and dial the number on the
When the called unit answers;
immediately press “Enter” on the
keypad & hang-up the handset*
scroll to [DIAL]
Select
* If the remote LIBERTY used a handset to answer the call, the remote LIBERTY user must press the Answer
key in order to connect with the modem.
Liberty USERS GUIDE
[01 MUSICAM USA Test]
MENU
NAVIGATION KNOB
NAVIGATION KNOB enters the
number in the dialing window
MENU NAVIGATION KNOB) to start
Dialing: From Phone Book Memory
Commonly called numbers can be stored in LIBERTY’S internal phone book.
To dial a number from the phone book follo w the sequence shown below:
=
Enter Number:
Ctl: Local
DIAL [MEMORY] MENU
Memory Selection
02 Main Studio
03 Production Studio
Scroll through the list to choose a
number. Clicking the MENU
- POTS MODE 1234567890
Ctl: Local
[DIAL] H-SET
Press the “Enter/Dial key” (or click
dialing.
Memory Dialing from Interstate or International call areas
When dialing from a new area code or country, enter the area code or international access codes into the
PREFIX memory location. Enable the “Prefix” option in the “Setup” menu. Using a prefix avoids the need
to manually enter these codes each time a phone memory is used. Only one Prefix memory is available
page 21 under Prefix Enable for more details)
.
(see
How to store a phone number
The LIBERTY can store up to 50 telephone numbers. Set out below is the steps to save a number into
memory:
Quick Store
=
Enter Number: -Ctl: Local IGC: --
DIAL] MEMORY MENU
[
Main screen – appears after start up
=
Hit DIAL or ANSWER
Ctl: Local IGC: --
DIAL] MEMORY MENU
[
Select [DIAL].
- POTS MODE -
Ctl: Local IGC: - [DIAL] H-SET
10
Type in the phone number using the Key Pad and press the
button on the Key Pad.
Store
Liberty USERS GUIDE
Memory Store
1234567890
Enter Location:
Enter the memory number (between 1 and 50), putting a zero
before a single digit (i.e. 01 or 09).
The above procedure saves the number with the name of
QUICK-STORE
telephone numbers refer to the next procedure.
Storing and naming a number and/or editing a stored number
=
Enter Number: -Ctl: Local IGC: --
DIAL] MEMORY MENU
[
Main screen – appears after start up
=
Hit DIAL or ANSWER
Ctl: Local IGC: -DIAL MEMORY [MENU]
Select [MENU].
Setup Menu
[09 Memory Setup]
10 Unit Details
Select [09 Memory Setup].
11 Exit Setup
. To edit this name or the
Memory Setup
[01 QUICK-STORE]
02 Main
Select either a new number or an existing one to make
changes to it.
03
View Config
01: Edit Number
1234567890
[CLR] COPY PASTE OK
If no change is required to the number then select [OK] with the
MENU NAVIGATION KNOB.To change the number select
[CLR] and use the Key Pad to enter the new number.Then select
[OK] with the MENU NAVIGATION KNOB. Hint: Copy or
Paste a number from one location to another
View Config
01: Edit Name
QUICK STORE
[EDIT] CLEAR OK
If no change is required to the name select [OK] with the
MENU NAVIGATION KNOB
[EDIT] with the
MENU NAVIGATION KNOB
. To change the name select
.
The letter being edited is surrounded by brackets. In the
01 [Q]UICK-STORE
1234567890
Press CLEAR to End.
example on the left the [Q] is ready for editing. To change
turn the
the
MENU NAVIGATION KNOB
MENU NAVIGATION KNOB.Note that a space and
, select by clicking
other symbols are found at the end of the alphabet, numbers
are at the beginning.
11
Liberty USERS GUIDE
F2 0 Rem Piezo Alrm
F2 1
Rem Port 1
F2 2
Rem
Port 2 not available
F2 3
Reneg up
F2 6
Retrain Current
F2 7
Loopback Mode
F2 9
Reneg Down
01 Head Offic[e]
1234567890
Press CLEAR on t he Key Pad to complete the changes.
Press CLEAR to End.
View Config
01: Edit Name
Head Office
Select [OK] to save the changes to memory.
EDIT CLEAR [OK]
Quick Function Tips
CLEAR Key: a general Escape key.
Selecting the CLEAR Key takes you back to the previous screen in
the particular menu that you are in.
Many LIBERTY menu items can be quickly accessed by pressing either the F1 or F2 keys followed by a
single number (0~9).
A common set of items are installed as defaults and can also be reinstated through the “Reset Function” in
the menu system. [Menu 07] The default key settings provide a useful tool for the operator.
The Keys can be tailored to individual requirements through the [06 Advanced Setup] menu and its submenu option [05 Function Setup]. The To olbox PC application can also set the function keys and save these
settings as a data file for later reuse.
Default Function Keys
Function
Key
Numeric
Key
Function
F2 & KEY: 0 - Rem Piezo Alrm
A piezo -electric “beeper” can be set off at the remote end by pressing F2+ 0 keys. A regular beep sounds
until pressing any key or knob resets the alert.
F2 & KEY 1, F2 & KEY 2 Activate remote control Ports 1 & 2 respectively.
F2 & KEY 3 Renegotiate Up
LIBERTY will attempt to renegotiate a higher bit rate for better audio quality. The audio is muted for
about 1 second during this process.
F2 & KEY 6 Retrain Current
12
Liberty USERS GUIDE
LIBERTY modems communicate over the line to establish the best possible conditions for data
transmission. The modems Selector “train” the line to compensate for variations in frequency response
and to cancel out any echo that may be present. Under some circumstances, particularly when line
conditions are subject to change, it may be beneficial to manually request the modems to "retrain" the line
by using F2 & KEY 6. The audio is muted for about 20 seconds during this process.
F2 & KEY 7 Loopback Mode
Tests all signal processing circuitry within Liberty. (Except for the modem). Input signals can be
monitored on the “Line Out” connector and headphones.
F2 & KEY 9 Renegotiate Down
Manually request LIBERTY modems to renegotiate a lower bit rate when current line conditions no
longer support the prevailing bit rate. Indicated by audible disturbances such as "popping" noises or
distortion. The audio is muted for about 1 second during this process.
Function Key Options
Any of the following actions can be assigned to any Function key.
01 Use for assigning unused
02 Renegotiate up
03 Renegotiate down
04 Retrain Current
05 Retrain up
06 Retrain Down
07 Retrain Auto
08 Reset Modem
09 Reset DSP
10 Lock & Unlock
11~16 Remote Relay Function 1-6
17 Pulse or toggle control Port 1 on remote
18 Pulse or toggle control Port 2 on remote
19 Activate Call Alert Beeper on remote
20 Toggle Input 1 preamplifier gain
21 Toggle CODEC
22 Loopback Mode
23 Pulse or toggle control Port 1 on local
24 Piezo Alarm
Note: Factory default keys should not be re-assigned unnecessarily as they are common short cuts on
most LIBERTYS and are very convenient for operators to use.
13
Liberty USERS GUIDE
Loading...