Administrator's Guide

Managing VAL Announcements Using the SAT
Issue 5 October 2002 455555-233-506
Announcement file format requirements
In order to be compatible with the TN2501AP circuit pack and the MultiVantage
system, announcement recordings must have the following parameters:
■ CCITT A-Law or CCITT µ-Law companding format (do not use PCM)
■ 8KHz sample rate
■ 8-bit resolution (bits per sample)
■ Mono (channels = 1)
■ The µ-Law (Mu-Law) companding is used in the United States and A-Law
is used internationally. Use the companding format specified on the System
Parameters Country Options screen.
Announcements that are recorded in this format occupy 8K bytes per second of
file space for every second of recorded speech. For example, a 10-second
announcement creates an 80K bytes .wav file.
Professional or computer recordings
In order to be compatible with the TN2501AP circuit pack and the MultiVantage
system, announcement recordings must meet the ‘‘Announcement file format
requirements’’ described above.
Recording new VAL announcements at a
computer
To record an announcement at a computer:
1. At the computer, open the application that you use to record .wav files.
2. Set the recording parameters.
3. Record the announcement by speaking into a microphone connected to the
computer.
4. Play the announcement back at the computer before transferring the file to
the VAL circuit pack.
Recording VAL announcements at a system
phone
To record an announcement at a system phone, see ‘‘Recording announcements’’.