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0027_ZYXEL.pas
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Pascal/Delphi Source File
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1996-09-04
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1KB
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30 lines
--------S-ZyXEL-----------------------------
The ZyXEL Modems are capable of digitizing speech, the ZFAX software and
answering machine software like VoiceConnect store the sampled data in
those files. The Modems are capable of compressing the data down to
19.2k CPS (ADPCM) and 9.6k CPS (CELP), the algorithms for the
compression may be found in the ZyxelVoc package by N. Igl, but as the
firmware on the modems changes, so might the compression algorithm.
Playback on the modem is always possible.
OFFSET Count TYPE Description
0000h 5 char ID='ZyXEL'
0005h 1 byte 02h, ??? format tag
0006h 4 byte reserved
000Ah 1 word Compression scheme
0 - CELP
1 - 2 bit ADPCM
2 - 3 bit ADPCM
000Ch 4 byte reserved
0010h ? ???? Raw Data
The voice data is just
the data received from U1496
Modem/Fax.
EXTENSION:ZVD,ZYX
OCCURENCES:PC
PROGRAMS:Voice Connect,ZFAX
REFERENCE:ZYXELVOC.*
VALIDATION:NONE