• nicnut

    @mswcpt I highly recommend trying a Rpi sound card. The ones I've tried sound so good. Better than my Motu interface on the Mac. I am using an Audio Injector one now. The PiDac+ sounds amazing, but it doesn't work well with other Pi shields, but sounds really amazing, Hi-fi. I recommend going that route. Set it up, in PD select is as your audio interface, save chagnes, and next time you launch Pd it should be the same setting.

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  • nicnut

    I've been having some issues too. I use the Audio Injector sound card on my 8 gig ram RPi. I have Audio Injector selected as my driver. Sometimes, for mysterious reasons, the Pi willl start up and use Alsa for the driver. I think there is even a mic on the Pi, or maybe on the sound card, and I have all the audio inputs off and it even starts feeding back. Pretty crazy. It happened once, and a few times Alsa was my driver, so it doesn't happen often.

    Maybe get the audio settings you want, save them and try a restart,

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  • nicnut

    I'm glad everyone is working this out. I am now using a python script to just quit Pd and restart it with the patch I want. It seems to work. I have a little delay between the two steps to insure they don't overlap, because then I have some problems.

    killer patches are good too, whatever works.

    posted in technical issues read more
  • nicnut

    @ marivier.rocks If you can figure out how to install pd .51 I would say it's worth it. Lot's of new features, plus you can use the latest version of Else library, which has a lot things that make Pd easier to use.

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  • nicnut

    Hey Knallberto. Yes I have that problem too. With patch box sometimes theres issues with Jack and alsa mixer. You have to figure all the sound settings out, with you soundcard or preferred audio driver.

    Jack used to work great for me, but I am having issues with this new soundcard I am using, so I switched to alsamixer. You have to take some different things into account. Once you get a good sound setting save it and try and use that going forward.

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  • nicnut

    I don't know if this helps, but sometimes the audio output level will make the audio sound bad. I have a RPi 4 and I am using a soundcard with a seperate audio output volume knob. And I use the alsamixer.

    At first I turned everything up as much as possible. It sounded terrible and sometimes no audio came out. Now I have alsa mixer at about 60% and my soundcard at 80%. I control the volume from my amp and faders in Pd. It sounds way better.

    If you are using the 8th inch jack out of the Pi something related to this could be an issue.

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  • nicnut

    OK thanks @ingox, that's helpful. I was thinking of deleting parts of the patch till I isolated it, but I'll try your method first.

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  • nicnut

    @ingox Thanks for the explanations. I think that helps.

    I think something is just wrong with this particular patch. I opened a few other patches and they worked ok and did do multi threading.

    This one particular patch doesn't and it also has stack overflow problems. I have a feeling it's because it has stuff from older librairies when I made it and it's using newer libraries now, so things are a little messed up.

    Anyway, I'm gonna say this one is solved and just trash this patch , or update it.

    thanks, Nick

    posted in technical issues read more
  • nicnut

    Hi,

    I had been using an Raspberry Pi 4 with 4 gigs of Ram for 3 or 4 months and it was working really great. One thing I noticed about it, which was different from every other Pi i've used was it seemed like it was doing multi-threading on it's own.

    I would put " htop" in the terminal and I could see the different processors workload changing, increasing, decreasing, etc.

    I upgraded to a Pi 4 with 8 gigs of Ram. One of the Pure Data pieces I was able to play pretty easily on the other pi with 4 gigs I am having a hard time doing on the Pi that is 8 gigs of Ram. I ran htop in the terminal and I was surprised that it's not multi threading. I had one processor doing almost all the work, and I am getting Stack Overflow in the Pd terminal, and the audio will sound crappy and just cut out sometimes.

    My question is should I increase the buffer size? Will this make it less likely to have a stack overflow?

    Also, is there some setting I need to do to get the multi threading that I don't know about?

    Thank you for the help in advance.

    By the way, I accidentally corrupted my Pi 4, 4 gigs of ram disc image so I can't go back and look at it. I know, stupid mistake.

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  • nicnut

    In my experience, I think the success of using Pd on a Raspberry Pi is heavily dependent on what disc image you use.

    The best one I've found is the Patchbox OS from BLokas.

    I used to just download a generic Raspian and had problems connecting midi controllers to Pd, with one it was absolutely impossible to update Pd, and there have been other problems. With a good disc image, preferably one designed to make music, or has Pd preinstalled, all these problems go away and you can just start using it.

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