Sensoray 2253 Windows - Manual (Page 34)

int devid)
Gets the current audio input setting.
input
MID2253_AUDIO_MIC (microphone), MID2253_AUDIO_LINE (line).
devid
device id in the system (use 0 with a single board installed).
S2253_SetAudioGain
MID2253_API int __stdcall S2253_SetAudioGain (
BOOL bAGC,
int gain,
int devid)
Sets the audio input gain. If bAGC is TRUE, the gain setting is ignored and
automatic gain control is used. If bAGC is FALSE, the gain is manual. This
setting applies to both streams and the separate audio stream
(S2253_StartAudioPreview).
bAGC
Turns AGC on or off (FALSE).
gain
Manual gain when AGC off. Value from 0 to 119 in steps of 0.5dB. 0=0dB,
1=0.5dB, 119= 59.5dB.
devid
device id in the system (use 0 with a single board installed).
S2253_GetAudioGain
MID2253_API int __stdcall S2253_GetAudioGain (
BOOL bAGC,
int gain,
int devid)
Retrieves the audio input gain parameters.
bAGC
pointer to AGC control setting
gain
pointer to manual audio gain.
devid
device id in the system (use 0 with a single board installed).
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