[PlanetCCRMA] Pd-extended USB audio output on FC12
peter at createdigitalmedia.net
Thu Jan 14 10:50:44 PST 2010
Oh, I'm familiar with JACK -- just not always familiar with getting
things to play nice with PulseAudio. ;) And presumably testing ALSA
direct out still makes some sense. I think it's likely what we'll have
to use on some mobile systems, for instance, which may not rely on
having the JACK daemon installed (or need it, for that matter)
On Thu, Jan 14, 2010 at 10:32 AM, Sean Beeson <seanbeeson at gmail.com> wrote:
> If you plan to do audio on a serious basis with Linux, I recommend you
> familiarize yourself with Jack. Any other serious audio program will
> use it.
> On 1/15/10, Peter Kirn <peter at createdigitalmedia.net> wrote:
>> Thanks, Sean. Further investigation reveals that this is definitely an
>> issue with the Audio Kontrol 1 and Pd -- class-compliant devices are
>> fine -- but I'm going to test disabling PA to see if that's making
>> things worse (very, very possible). Appreciate the help and will
>> report back!
>> 2010/1/14 Sean Beeson <seanbeeson at gmail.com>:
>>> Hi, Peter.
>>> I think most people would use Jack to do all the audio routing. Before
>>> you start Jack kill PulseAudio with pulseaudio -k under the user you
>>> logged in as first. It seems to me that Jack would be used under
>>> Ubuntu also. If you got a normal PlanetCCRMA installed Jack should
>>> have gotten installed by default, I'm pretty sure. Try ' qjackctl -s &
>>> ' with no other audio applications running. Usually the default
>>> settings work and you can leave the settings alone in JACK Audio
>>> Connection Kit. If it starts up OK, click on Connect and check out the
>>> three tabs you see there to get familiar with using Jack. An easy to
>>> use synth to use to test with is zynaddsubfx & . It has a virtual
>>> keyboard to easily trigger it to make sound. PD should also show up in
>>> the Connect window of QJackCtl once you start it.
>>> On 1/14/10, Peter Kirn <peter at createdigitalmedia.net> wrote:
>>>> Kudos to everyone who's worked on Planet-CCRMA on Fedora 12; really,
>>>> really impressed with the way everything is put together here.
>>>> I'm just having one issue so far. Pd-extended seems to be having some
>>>> issues with my USB audio output. I'm using the NI Audio Kontrol 1,
>>>> which of course lacks mixer controls. I think what's happening is that
>>>> Pd's gain is getting set too high. So, the moment I select the AK1 via
>>>> ALSA in Pd, I hear a fizzle out of my speakers -- presumably actually
>>>> the noise floor, cranked way up. The moment I try a test sound, even
>>>> at -40 dB, I get a horribly distorted sound, as if its gain is set
>>>> Internal audio works just fine.
>>>> Also, it seems I've wound up with Pulseaudio even though I didn't want
>>>> it and tried to disable it on installation, if that's relevant.
>>>> Any ideas? Unfortunately, Hans-Christoph is primarily an Ubuntu user,
>>>> so I'd love to better sort out out-of-box configuration with Pd on
>>>> Fedora. ;)
>>>> PlanetCCRMA mailing list
>>>> PlanetCCRMA at ccrma.stanford.edu
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>>> PlanetCCRMA at ccrma.stanford.edu
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