rockbox/firmware/export/erosqlinux_codec.h
Dana Conrad 17263a813b ErosQ (both): avoid clipping due to DC offset bandaid
Set the maximum volume on both hosted and native ports
to -2 dB.

Verified behavior here on native and by borkitall on irc
for hosted.

Change-Id: I3aebc2bb4b9294a4137a33694c83139c0d76099a
2021-09-05 15:50:21 +00:00

23 lines
600 B
C

#ifndef __EROSQLINUX_CODEC__
#define __EROSQLINUX_CODEC__
#define AUDIOHW_CAPS (LINEOUT_CAP)
/* a small DC offset prevents play/pause clicking due to the DAC auto-muting */
#define PCM_DC_OFFSET_VALUE -1
/*
* Note: Maximum volume is set one step below unity in order to
* avoid overflowing pcm samples due to our DC Offset.
*
* The DAC's output is hot enough this should not be an issue.
*/
AUDIOHW_SETTING(VOLUME, "dB", 0, 2, -74, -2, -40)
//#define AUDIOHW_NEEDS_INITIAL_UNMUTE
void audiohw_mute(int mute);
void erosq_set_output(int ps);
int erosq_get_outputs(void);
#endif