[LAU] No sound with jack

Peter O'Doherty mail at peterodoherty.net
Mon Dec 30 09:36:15 UTC 2013


On 12/30/2013 10:16 AM, hermann meyer wrote:
> Am 30.12.2013 09:29, schrieb Peter O'Doherty:
>> Hi,
>> I've just installed qjackctl and am having trouble with the audio 
>> setup in a few programs (like pd, supercollider). When I run these 
>> programs I get no sound and also no error messages in qjackctl.
>> Is there a way to test whether jack is working correctly?
>>
>> Here is my setup:
>>
>> Ubuntu 13.04
>> qjackctl 0.3.10
>> libjack-jackd2-0
>> libjack-jackd2-dev
>>
>> Any help would be greatly appreciated.
>> Thanks,
>> Peter
>>
>>
> you can try
> jack_metro -f 220 -A 0.6  -b 120
>
> connect in qjackctl metro with system out, if jack is setup correct, 
> you will hear the metronome.
>
> (press ctrl+c to exit metro)

Thanks. I see now what the problem is - whilst the audio outs are 
automatically connected to system playback_1 and playback_2, sound is 
actually coming from playback_3 and playback_4. How can I change this in 
the settings?



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