Avaya SoundBrick 500 User Manual download pdf (Page 8)

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



or any other noise reduction system.

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 TABLE

Message length is determined by the memory size of your unit and the

bandwidth/sample rate setting. Higher bandwidth settings provide better audio

quality but also reduce the total message length.

Refer to the following table to find your maximum message length.

Memory Size

4 Min. 8 Min. 16 Min. 32 Min.

Bandwidth

Sample

Rate

4 Min. 8 Min. 16 Min. 32 Min. 3.5 KHz 34 KBps

2 Min. 4 Min. 8 Min. 16 Min. 7.0 KHz 69 KBps

90 Sec. 3 Min. 6 Min. 12 Min. 7.0E KHz 92 KBps

Table 2 - Message Length

SoundBrick 500 01/08/2001

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 17 18

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Avaya SoundBrick 500 User Manual Page 8