+option "mixer_channel" C
+#~~~~~~~~~~~~~~~~~~~~~~~
+"select the analog mixer channel"
+ enum typestr="channel"
+ values="volume", "bass", "treble", "synth", "pcm", "speaker", "line",
+ "mic", "cd", "imix", "altpcm", "reclev", "igain", "ogain"
+ default="volume"
+ optional
+ details="
+ Not all listed channels might be supported on any particular hardware.
+"
+