Tape Preparation Instructions; Message Length Table; Table 2 - Message Length - Avaya SoundBrick 500 Installation And Operation Manual

TAPE PREPARATION INSTRUCTIONS

To get the best audio reproduction, it is essential to start with a high-quality
recording. In order to load into memory properly, your audio tape program must
conform to the following guidelines exactly.
1. Use only normal bias (Type I) tapes not exceeding 90 minutes in capacity.
2. Do not use high bias, chrome, or metal tapes.
3. Do not use DOLBY
4. Record your production in 2-channel mono. The audio level should average
0dB while peaking no hotter than +6dB.
5. Start the recording no later than 20 seconds from the beginning of the tape.
6. The message cannot have embedded passages averaging less than -25dB for
longer than 5 seconds, because the unit interprets this as silence, signifying the
end of the load.
7. There should be at least 5 seconds of silence at the end of the message to
signify the end of the message.
Message length is determined by the memory size of your unit and the
bandwidth/sample rate setting.
quality but also reduce the total message length.
Refer to the following table to find your maximum message length.
4 Min.
4 Min.
2 Min.
90 Sec.
SoundBrick 500

or any other noise reduction system.

MESSAGE LENGTH TABLE

Higher bandwidth settings provide better audio
Memory Size
8 Min. 16 Min.
8 Min. 16 Min.
4 Min. 8 Min.
3 Min. 6 Min.

Table 2 - Message Length

Bandwidth
32 Min.
32 Min. 3.5 KHz
16 Min. 7.0 KHz
12 Min. 7.0E KHz
8
Sample
Rate
34 KBps
69 KBps
92 KBps
01/08/2001