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re: kern/52781: audioctl can't set output gain

The following reply was made to PR kern/52781; it has been noted by GNATS.

From: matthew green <>
Subject: re: kern/52781: audioctl can't set output gain
Date: Sun, 20 May 2018 17:27:17 +1000

 hi Nat,
 old mail, i missed replying to earlier:
 >  > This may not critical but is problematic to 8.0 release.
 >  > How about revert audio.c 1.354 ?
 >  =
 >  I think it is not a good idea to revert this change as it was intended =
 that =
 >  the play/record.gain will only set the gain the particular audio channe=
 l it is =
 >  applied to and mixerctl is used for setting the master volume which wil=
 l effect =
 >  all channels.
 while i'm deleting your rationale for the above, i'd like
 disagree fundumentally with this.
 play.gain is the traditional way the "sun audio" interface has
 worked, so any other tool that thought this was a master volume
 (which it has been, until recently) has to be updated, whether
 it is a C program or a script.
 that's not particularly nice for the end users, so i would like
 to at least restore the original functionality if there is one
 vchan only, if not more generally.

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