diff options
| -rw-r--r-- | firmware/export/tlv320.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/firmware/export/tlv320.h b/firmware/export/tlv320.h index 75f98bc..6c722bb 100644 --- a/firmware/export/tlv320.h +++ b/firmware/export/tlv320.h @@ -26,7 +26,8 @@ AUDIOHW_SETTING(VOLUME, "dB", 0, 1, -74, 6, -20) #ifdef HAVE_RECORDING - /* (x - 23)/1.5 *10 */ +/* Line in : 0 .. 31 => Volume -34.5 .. +12 dB + * Mic (left): 0 .. 1 => Volume +0, +20 dB */ AUDIOHW_SETTING(LEFT_GAIN, "dB", 1, 1, 0, 31, 23, (val - 23) * 15) AUDIOHW_SETTING(RIGHT_GAIN, "dB", 1, 1, 0, 31, 23, (val - 23) * 15) /* 0 or 20 dB */ |