Sensoray 2224 Windows - Manual (Page 39)

MID2226_API int S2226_GetAudioMtrLevel(
int *audl,
int *audr,
HANDLE hdev
);
Get the audio meter's peak amplitude that is decayed over time. Left and right values are 23-bits,
unsigned binary , where 0 indicates the min volume.
Parameters
audl
pointer to the value to receive the left channels current peak
amplitude that is decayed over time.
audr
pointer to the value to receive the right channels current peak
amplitude that is decayed over time.
hdev
handle to device (obtained from S2226_OpenBoard).
Returns
0 on success, negative value if error (see mid2226types.h for error codes list).
MID2226_API int S2226_GetAudioMtr_dB(
int *db_l,
int *db_r,
HANDLE hdev
);
Get the audio meter's peak amplitude, in decibels, that is decayed over time. Left and right values
are 11-bits, unsigned binary, where 0 indicates the max volume. There are 2048 steps of -0.1 db
each.
Parameters
db_l
pointer to the value to receive the left channels current peak
amplitude that is decayed over time in decibels.
db_r
39