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Appendix B-6
B
+VSM=m
Compression method selection. This command contains
four parameters that specify the voice compression
method, voice sampling rate, silence compression
sensitivity, and degree of silence expansion. The
format is m=<cml>,<vsr>,<scs>,<sel>. Default is 140,
8000,0,0.
<
CML
>C
OMMAND
D
ESCRIPTION
0
LIN 1: 8bit linear PCM
1
LIN 2: 16bit linear PCM
2
AD 4: 4bit adaptive differential PCM
(ADPCM)
140*
CL 1: Cirrus A-law
141
AD 3: 3bit ADPCM
<
VSR
>C
OMMAND
D
ESCRIPTION
4800
4800 samples per second
7200
7200 samples per second
8000*
8000 samples per second
9600
9600 samples per second
11025
11025 samples per second
<
SCS
>C
OMMAND
D
ESCRIPTION
0*
Disables DCE silence compression
n=1+
Increments of one second. Raises noise
detection threshold.
<
SEL
>C
OMMAND
D
ESCRIPTION
0
DCE ignores the <sel> parameter
n=1+
Increments of one second. Sets the
maximum period of silence the DCE
expands a period of silence compressed by
the <scs> parameter.
Summary of Contents for Z34-PC
Page 1: ...Zypcom Data Fax Voice Modems User s Guide Z34 SC Z34 PC Part number 18008 509D November 1997...
Page 14: ...xiv Z...
Page 24: ...1 10 1...
Page 84: ...3 40 3...
Page 102: ...4 18 4...
Page 114: ...Appendix B 8 B...
Page 118: ...Appendix C PB C...
Page 128: ...Appendix E PB E...
Page 132: ...Appendix F 4 F...