Differences

This shows you the differences between two versions of the page.

--- mcimx6q-sbc [2017/10/04 18:09] – [Headphone mixers] rpjday
+++ mcimx6q-sbc [2017/10/04 18:34] (current) – [Headphone mixers] rpjday
@@ Line 141: / Line 141: @@
 Indeed, playing mono files now produces no output at all (which is expected).
+Now configure HPMIXL to get input from DACL:
+<code>
+# amixer set "HPMIXL DACL" on
+Simple mixer control 'HPMIXL DACL',0
+  Capabilities: pswitch pswitch-joined
+  Playback channels: Mono
+  Mono: Playback [on]
+</code>
+But playing a mono wav file ... no sound. Not good. Oh, wait, must turn on headphone mixer:
+<code>
+# amixer set "Headphone Mixer" on,on
+Simple mixer control 'Headphone Mixer',0
+  Capabilities: pswitch
+  Playback channels: Front Left - Front Right
+  Mono:
+  Front Left: Playback [on]
+  Front Right: Playback [on]
+</code>
+In short:
+  * switch ''HPOUTL PGA'' to "Mixer"
+  * enable ''HPMIXL DACL''
+  * enable "Headphone Mixer"
+==== Playing mono .wav files on both headphone channels ====
+Seems simple enough:
+  * Switch ''HPOUTR PGA'' to "Mixer"
+  * Make sure "Headphone Mixer" is enabled
+  * Enable ''HPMIXR DACL''