[PD] PD with Ubuntu Karmic - no sound

cyrille henry ch at chnry.net
Sat Nov 14 18:10:26 CET 2009 

Hans-Christoph Steiner a écrit :
> 
> The problem is getting things working for newbies.  This has never 
> worked for me, but I haven't tried Karmic yet:
i don't think karmic will make any diference.
> 
> - install default Ubuntu setup
> - install puredata.deb or pd-extended.deb
> - launch pd using the GNOME menu item
> - then check sound
> 
> This works on Mac OS X and Windows.  I am guessing that you don't run 
> pulseaudio, so that is a non-default config.  
i do run pulse audio.
when pulse audio don't use the sound card, pd can use it.
the only modification to the audio configuration i'm doing is removing ubuntu sound.

>I still think a crappy 
> working config is a better default than a non-working config.

what is the problem with pasuspender?
you can't watch youtube video when using pd, but pd should always act normal.

so, pasuspender is crappy, padsp is very crappy...

c

> 
> .hc
> 
> 
> On Nov 14, 2009, at 11:53 AM, cyrille henry wrote:
> 
>>
>>
>> Hans-Christoph Steiner a écrit :
>>> Sound with lots of latency is better than no sound at all.
>> i don't think so.
>> no sound -> you realize that there is a problem that need to be fixed.
>> big latency -> you think ubuntu / pd is crappy.
>>
>>> Here's how I see it now:
>>> - pd currently doesn't make sound on Fedora/Debian/Ubuntu without 
>>> changing settings
>>
>> well, it depend of your sound card i think.
>> mine work perfectly with oss, so i did not have to do anything to have 
>> sound.
>> as long as i don't use other audio software.
>>
>>> - newbies are screwed, no sound output
>>> - advanced users already setup their own audio
>> i did not set up anything.
>>
>>> So if we use padsp by default, we get this, which seems preferrable 
>>> to me:
>>> - pd makes sound on Fedora/Debian/Ubuntu without changing settings
>>> - newbies get sound with lots of latency
>>> - advanced users already setup their own audio
>> we will have lot's of mail in this list asking why pd can't make a 
>> sound with less than 500ms latency, and i'll answer : "pd extended 
>> configuration is crappy"
>>
>>
>>> Even better, you could get sound from Pd and other apps at the same 
>>> time.  If there is a way to get to the second status without big 
>>> latency, that would be the best.
>> yes, that would be the best.
>> but i did not find any solution other than installing jack or maybe 
>> having pd to use pulse audio...
>>
>>> 'padsp' is the only trick I know of, I haven't tried pasuspender tho.
>> pasuspender work great, as expected : it stop other applications from 
>> using the sound card so pd can have full control of it. and as soon as 
>> pd stop it gives back the sound to the other applications...
>>
>> padsp is definitly not a good solution, pasuspender is the way to go i 
>> my opinion.
>>
>> c
>>
>>> .hc
>>> On Nov 14, 2009, at 5:30 AM, cyrille henry wrote:
>>>> padsp pd add to much latency, it is clearly unusable for pd.
>>>>
>>>> on karmic, i have to set pd audio buffer to 400ms...
>>>>
>>>> c
>>>>
>>>> Hans-Christoph Steiner a écrit :
>>>>> How would we make Pd use that ALSA compatibility layer?  I know 
>>>>> about the OSS emulation in Pulseaudio, I believe that would work by 
>>>>> doing 'padsp pd'.
>>>>> .hc
>>>>> On Nov 13, 2009, at 11:28 PM, John Harrison wrote:
>>>>>> IIRC there is some sort of ALSA compatibility layer in Pulseaudio 
>>>>>> and I think it would be nice if Pd-extended could choose this ALSA 
>>>>>> "driver" or "soft card" or whatever it would be called. That would 
>>>>>> be a better solution than pasuspender because then Pd would be 
>>>>>> playing "nice" with all the other sound apps concurrently. Latency 
>>>>>> might be slightly worse but I think for beginners at least the 
>>>>>> initial experience would be more positive, as many of these users 
>>>>>> are coming from OS X and Windows platforms where sound 
>>>>>> applications sharing the same sound card concurrently is expected 
>>>>>> behavior.
>>>>>>
>>>>>> I also vaguely remember the pulseaudio is only an issue with ALSA 
>>>>>> when there is no hardware mixer in the card. But my guess is that 
>>>>>> would be all cheap sound cards, since it has been the case with 
>>>>>> the built-in cards on all the Linux-based laptops I run into.
>>>>>>
>>>>>> -John
>>>>>>
>>>>>> On Fri, Nov 13, 2009 at 6:50 PM, Hans-Christoph Steiner 
>>>>>> <hans at at.or.at <mailto:hans at at.or.at>> wrote:
>>>>>>
>>>>>>
>>>>>>   Is pasuspender something that could be integrated into the
>>>>>>   Pd-extended menu launch item somehow?  I'd really like to make
>>>>>>   sure that Pd will output audio by just starting it in 
>>>>>> Debian/Ubunut.
>>>>>>
>>>>>>   .hc
>>>>>>
>>>>>>   On Nov 12, 2009, at 12:09 PM, John Harrison wrote:
>>>>>>
>>>>>>>   could be pulseaudio is the problem?
>>>>>>>
>>>>>>>   from the command line try
>>>>>>>
>>>>>>>   pasuspender pd
>>>>>>>
>>>>>>>   On Thu, Nov 12, 2009 at 9:28 AM, Aditya Mandayam
>>>>>>>   <adityams at gmail.com <mailto:adityams at gmail.com>> wrote:
>>>>>>>
>>>>>>>       hi,
>>>>>>>
>>>>>>>       i have pd installed on ubunty 9.10 - karmic koala.
>>>>>>>
>>>>>>>       i have absolutely no sound when i fire up pd. i've tried 
>>>>>>> fooling
>>>>>>>       around with the Media>settings for OSS, ALSA, jack, default 
>>>>>>> MIDI.
>>>>>>>
>>>>>>>       No sound. What gives?
>>>>>>>
>>>>>>>       Thank you,
>>>>>>>
>>>>>>>       Y
>>>>>>>
>>>>>>>       _______________________________________________
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>   --     John
>>>>>>>   http://alumni.media.mit.edu/~harrison/
>>>>>>>   <http://alumni.media.mit.edu/%7Eharrison/>
>>>>>>>   _______________________________________________
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>>>>>>
>>>>>>
>>>>>>
>>>>>>   
>>>>>> ---------------------------------------------------------------------------- 
>>>>>>
>>>>>>
>>>>>>   Computer science is no more related to the computer than astronomy
>>>>>>   is related to the telescope.      -Edsger Dykstra
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> -- 
>>>>>> John
>>>>>> http://alumni.media.mit.edu/~harrison/
>>>>> ---------------------------------------------------------------------------- 
>>>>>
>>>>> "[T]he greatest purveyor of violence in the world today [is] my own 
>>>>> government." - Martin Luther King, Jr.
>>>>> ------------------------------------------------------------------------ 
>>>>>
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