1 files changed, 2 insertions, 1 deletions
diff --git a/firmware/export/tlv320.h b/firmware/export/tlv320.h
index 75f98bc142..6c722bb437 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 */

diff --git a/firmware/export/tlv320.h b/firmware/export/tlv320.h index 75f98bc142..6c722bb437 100644 --- a/firmware/export/tlv320.h +++ b/firmware/export/tlv320.h
@@ -26,7 +26,8 @@
26		26
27	AUDIOHW_SETTING(VOLUME, "dB", 0, 1, -74, 6, -20)	27	AUDIOHW_SETTING(VOLUME, "dB", 0, 1, -74, 6, -20)
28	#ifdef HAVE_RECORDING	28	#ifdef HAVE_RECORDING
29	/* (x - 23)/1.5 10 /	29	/* Line in : 0 .. 31 => Volume -34.5 .. +12 dB
		30	* Mic (left): 0 .. 1 => Volume +0, +20 dB */
30	AUDIOHW_SETTING(LEFT_GAIN, "dB", 1, 1, 0, 31, 23, (val - 23) * 15)	31	AUDIOHW_SETTING(LEFT_GAIN, "dB", 1, 1, 0, 31, 23, (val - 23) * 15)
31	AUDIOHW_SETTING(RIGHT_GAIN, "dB", 1, 1, 0, 31, 23, (val - 23) * 15)	32	AUDIOHW_SETTING(RIGHT_GAIN, "dB", 1, 1, 0, 31, 23, (val - 23) * 15)
32	/* 0 or 20 dB */	33	/* 0 or 20 dB */