User Manual

VIVOTEK
User's Manual - 229
© 2019 VIVOTEK INC. All Right Reserved
99
NAME VALUE SECURITY
(get/set)
DESCRIPTION
volume_external 0~100 4/4 Volume when take external
microphone as input source.
0: Minimum
100: Maximum
* Only available when the channel
supports external microphone (The
related bit of
"capability_audio_extmic" is equal to
1).
mute 0, 1 1/4 0: Mute off
1: Mute on
gain
<Not recommended
to use this>
0~100 4/4 Gain of input.
(audioin_c<0~(n-1)>_source = linein)
* Reserved for compatibility, and
suggest don't use this since the
version number (httpversion) is equal
or greater than 0301a.
* We replace "gain" with
"volume_internal" and
"volume_external". More details,
please refer the parameter
description of "volume_internal" and
"volume_external".
boostmic
<Not recommended
to use this>
0~100 4/4 Enable microphone boost.
Gain of input.
(audioin_c<0~(n-1)>_source = micin)
* Reserved for compatibility, and
suggest don't use this since the
version number (httpversion) is equal
or greater than 0301a.
* We replace "boostmic" with
"volume_internal" and
"volume_external". More details,
please refer the parameter
© 2019 VIVOTEK INC. All Right Reserved
100
NAME VALUE SECURITY
(get/set)
DESCRIPTION
description of "volume_internal" and
"volume_external".
s0_codectype aac4, gamr, g711,
g726
(Available codec are
listed in
"capability_audioin_
codec")
4/4 Set audio codec type for input.
aac4: Advanced Audio Coding (AAC)
gamr: Adaptive Multi-Rate (AMR)
g711: G.711
g726: G.726
s0_aac4_bitrate 16000,
32000,
48000,
64000,
96000,
128000
4/4 Set AAC4 bitrate in bps.
* Only available if AAC is supported.
s0_gamr_bitrate 4750,
5150,
5900,
6700,
7400,
7950,
10200,
12200
4/4 AMR encoded bitrate in bps.
* Only available if AMR is supported.
s0_g711_mode pcmu,
pcma
4/4 Set G.711 companding algorithm.
pcmu: µ-law algorithm
pcma: A-law algorithm
* Only available if G.711 is supported.
s0_g726_bitrate 16000,
24000,
32000,
40000
4/4 Set G.726 encoded bitrate in bps.
* Only available if G.726 is supported.
s0_g726_bitstreamp
ackingmode
little, big 4/4 Set G.726 bit streaming packing
mode.
little: Little-endian bitstream format.
big: Big-endian bitstream format.
* Only available if G.726 is supported.