Sound device channel number selections are incorrect

[Sean M. Pappalardo]

In the 1.9 branch (as of r2696,) Mixxx shows incorrect channel pairing for multi-channel devices: Channel 1-2, Channel 2-3, Channel 3-4, etc. This occurs on all platforms, regardless of API.

I haven't tried to see what happens if I pick odd pairs but I can't imagine good things. And some of our users are confused enough already.

[William Good (bkgood)]

This has been discussed in the past (not necessarily in a bug, may have been irc or email) but this is necessary for both mono outputs (a requested feature) and microphone inputs (a roadmapped feature). For example, if a user's mic in is channel 1 on the sound card and then has a stereo line in as channels 2 and 3, this fine-grained selection is necessary.

In regards to user confusion, the user will get the following error message in a dialog when he selects overlapping channels: "Two outputs cannot share channels on sound device "default"", giving the user the problem and where to look to solve it (at all the outputs with the "default" device selected).

This has been in the wild since the 1.9 beta was released, have there been significant issues reported? There hasn't been a bug that I've seen until now and the beta has been out for months now and seems to be widely used.

[Sean M. Pappalardo (pegasus-renegadetech)]

Ahh, ok. I was wondering if mono inputs had something to do with it. No, noone's reported anything, I was just worried that many novice users would get confused. (In the future, can we ask PortAudio to tell us if a channel is part of a pair?)

[Albert Santoni (gamegod)]

Let's keep this bug open for now and keep our ears peeled for user feedback.

On Sat, Feb 5, 2011 at 4:39 AM, Sean M. Pappalardo <
<email address hidden>> wrote:

> Ahh, ok. I was wondering if mono inputs had something to do with it. No,
> noone's reported anything, I was just worried that many novice users
> would get confused. (In the future, can we ask PortAudio to tell us if a
> channel is part of a pair?)
>
> --
> You received this bug notification because you are a member of Mixxx
> Development Team, which is subscribed to Mixxx.
> https://bugs.launchpad.net/bugs/713078
>
> Title:
> Sound device channel number selections are incorrect
>

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/5762