Comment 13 for bug 785939

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francois.martorello (francois-martorello-gmail) wrote : Re: [Bug 785939] Re: Support Rane Serato TTM57SL Mixer

I think you should interest to alsa drivers create new driver or add
support to the driver. There is already a driver for traktor scratch. Does
any one can help to write alsa driver ?

2012/4/11 Owen Williams <email address hidden>

> I really don't know what to look for, I don't know anything about USB
> :/. The output of aplay -l shows only two audio devices so somehow
> Serato is talking to the mixer and asking for the correct audio feeds.
> The only other idea I had is, if you set up Serato to work correctly,
> leave the mixer on, and then hook up a linux computer, do the audio
> inputs work as expected under linux? Or do the audio inputs always
> reset to the master/headphone output, which is what I think it's
> sending?
>
> Maybe you can select the correct audio inputs in Serato running in Wine
> or something crazy like that?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/785939
>
> Title:
> Support Rane Serato TTM57SL Mixer
>
> Status in Mixxx:
> Confirmed
>
> Bug description:
> We briefly had access to a Serato mixer and discovered that while it
> works with Mixxx, we were unable to configure the mixer to tell it
> which audio channels to send over USB audio. The mixer has multiple
> modes, including sending out raw input, mixed output, etc. No options
> show up in Alsa-mixer, so our guess is that there are simple USB
> signals that the Serato software sends to the mixer to change these
> settings. It would be really cool if Mixxx could talk to this mixer
> and change its settings. (It would be even cooler if this were
> implemented as part of an ALSA driver...)
>
> Fixing this bug will require expertise and hardware:
>
> * Someone needs a TTM57SL mixer to play around with
> * This person also needs Windows, with Serato installed (free download)
> * This person also needs to be able to debug the USB bus to determine
> what messages are getting sent to the mixer
>
> Once we identify the USB messages, it should be possible to implement
> them in Mixxx and duplicate this functionality.
>
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>