[PD] pd running on STM32F429
I'm looking to get pd up and running either under this BSP, http://emcraft.com/products/343 or some versions of Debian on ARM, as a step toward running it in a family of Eurorack synthesizer modules that use the same processor, including this one of my design which is getting some favorable attention now. https://youtu.be/Li5-V0g5Upk. https://youtu.be/Li5-V0g5Upk Right now it's hard-coded in C. The idea is that pd will streamline spinoff modules and alternate firmware. Does anyone have relevant experience or advice for me? Many thanks! -- Gary Hall โสตะ-สติ: Mindfulness with Sound http://soundcloud.com/hua-hin-sound-cloud ph. (0) 89 181 6328 ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] olimex board
Hello, Updating this thread about Olimex's OlinuXino board (A20-LIME A20-LIME2) I still get the following error (in fact the console gets filled with dozens of them in a few seconds) : ALSA output error (restart failed): Broken pipe And the all DSP gets stuck, it is not computed anymore (i.e. [env~] doesn't output anymore). I tried to make an abstraction to detect that dsp isn't active and restart it (;pd dsp 0, then ;pd dsp 1 -- the DSP button stays ticked). This error appears at every startup of pd, and then randomly, I think mostly when opening new patcher window or on CPU load peaks. In general, pd's gui is quite slow (maybe normal on such board), and - don't know if this is related - sometimes Xorg crashes (I'm using the precooked debian distribution by Olimex) I remember to read on this list that Raspberry Pi users should use a patched version of vanilla for ARM processors, isn't it ? (And Julian also adviced me to avoid pd-extended) I think I'll give a try, but is there a little step-by-step howto to learn how to install this version on a debian ? Any help much appreciated ! cheers, Raphaël 2015-05-22 12:44 GMT+02:00 Winfried Ritsch rit...@iem.at: just to add my experience. I am now running some Olimex A10-Lime with amplifier boards on a sound installation and it works quite stable. Test-board see: http://puredata.info/docs/embedded/olinuxino/algo_a10board_05_cut.jpg/view I compiled jackd myself excluding dbus service so it worked, but did not get a better performance so I use pd with ALSA directly. mfg winfried Am Mittwoch, 13. Mai 2015, 14:56:28 schrieb Raphaël Ilias: Hi ! Just to inform you that I'm currently experimenting with Olimex's development boards, this might interest some people here (i am not doing any advertising at all) who are into mobile puredata the set-up i use consists of - Olimex's A20-OLinuXino-LIME board (dual core Cortex-A7) - with their own Debian distribution - cheap USB audio interface : Terratec Aureon Dual USB - pd-extended 0.43-4 - patching through VNC (and through Wi-Fi) And it works. ..not as fast as on my laptop, of course, but I can run patches ok. yet, the GUI is indeed quite slow (especially opening a patch) However, I have a few troubles, but it might not be the right place to ask... I am newbie to debian, so I couldn't setup jack at all. I'm using alsa but I get the error at startup : ALSA output error (restart failed): Broken pipe (and also sometimes when opening patche, I get a bunch of these and DSP get stuck, i need to turn OFF and ON again pd's DSP to get audio back.) Searching the archive, I saw that some people got the same problem and resolved it by suspending/de-installing pulseaudio. But it seems that pulseaudio isn't installed here. Maybe someone has got a clue, where to search...? (i know this is very specific problem !) all best, Raphaël -- --- Ritsch, Winfried, Ao.Univ.Prof. Dipl.-Ing. Institut 17 Elektronische Musik und Akustik 8010 Graz, Inffeldgasse 10/III E-Mail rit...@iem.at Homepage http://iem.at/ritsch Mobil ++436642439369 --- ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] olimex board
On Sun, May 31, 2015 at 9:52 AM, Raphaël Ilias phae.il...@gmail.com wrote: Hello, Updating this thread about Olimex's OlinuXino board (A20-LIME A20-LIME2) I still get the following error (in fact the console gets filled with dozens of them in a few seconds) : ALSA output error (restart failed): Broken pipe And the all DSP gets stuck, it is not computed anymore (i.e. [env~] doesn't output anymore). I tried to make an abstraction to detect that dsp isn't active and restart it (;pd dsp 0, then ;pd dsp 1 -- the DSP button stays ticked). This error appears at every startup of pd, and then randomly, I think mostly when opening new patcher window or on CPU load peaks. In general, pd's gui is quite slow (maybe normal on such board), and - don't know if this is related - sometimes Xorg crashes (I'm using the precooked debian distribution by Olimex) I remember to read on this list that Raspberry Pi users should use a patched version of vanilla for ARM processors, isn't it ? (And Julian also adviced me to avoid pd-extended) That patched version had a fix for denormal numbers on ARM, but the fix was included in vanilla Pd soon after. If you use latest vanilla Pd from Miller's site, chances are best that it will work with an ARM board. On Raspberry Pi 2 at least it works well for me, but it is still easy to mess things up: a short current consumption peak may cause a power brown out which in turn shoots the usb audio card. Therefore I got used to handle RPi with more care than a robust laptop: load Pd, wait till it has everything initialized, then turn dsp on, then load a cpu intensive patch. I think I'll give a try, but is there a little step-by-step howto to learn how to install this version on a debian ? Any help much appreciated ! cheers, Raphaël 2015-05-22 12:44 GMT+02:00 Winfried Ritsch rit...@iem.at: just to add my experience. I am now running some Olimex A10-Lime with amplifier boards on a sound installation and it works quite stable. Test-board see: http://puredata.info/docs/embedded/olinuxino/algo_a10board_05_cut.jpg/view I compiled jackd myself excluding dbus service so it worked, but did not get a better performance so I use pd with ALSA directly. mfg winfried Am Mittwoch, 13. Mai 2015, 14:56:28 schrieb Raphaël Ilias: Hi ! Just to inform you that I'm currently experimenting with Olimex's development boards, this might interest some people here (i am not doing any advertising at all) who are into mobile puredata the set-up i use consists of - Olimex's A20-OLinuXino-LIME board (dual core Cortex-A7) - with their own Debian distribution - cheap USB audio interface : Terratec Aureon Dual USB - pd-extended 0.43-4 - patching through VNC (and through Wi-Fi) And it works. ..not as fast as on my laptop, of course, but I can run patches ok. yet, the GUI is indeed quite slow (especially opening a patch) However, I have a few troubles, but it might not be the right place to ask... I am newbie to debian, so I couldn't setup jack at all. I'm using alsa but I get the error at startup : ALSA output error (restart failed): Broken pipe (and also sometimes when opening patche, I get a bunch of these and DSP get stuck, i need to turn OFF and ON again pd's DSP to get audio back.) Searching the archive, I saw that some people got the same problem and resolved it by suspending/de-installing pulseaudio. But it seems that pulseaudio isn't installed here. Maybe someone has got a clue, where to search...? (i know this is very specific problem !) all best, Raphaël -- --- Ritsch, Winfried, Ao.Univ.Prof. Dipl.-Ing. Institut 17 Elektronische Musik und Akustik 8010 Graz, Inffeldgasse 10/III E-Mail rit...@iem.at Homepage http://iem.at/ritsch Mobil ++436642439369 --- ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] tabread4~ interpolation at slooow playback?
hey Is there any way how to reduce the interpolation noise? Could I use a low-pass filter whose cutoff frequency I could adapt wrt. playback speed? why? the interpolation noise is what makes it sound so unique, so crunchy, without LP and especially at very sloow playback. with a good analog tube eq and pair of high end analog compressors, it sounds like garlic smear in my ears or maybe even chilli mayo :) cheers ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] tabread4~ interpolation at slooow playback?
In my experience, you get the best sounding results when using samples recorded with a high samplerate (96kHz), instead of resampling. cheers, jan On 05/31/2015 01:06 PM, jamal crawford wrote: hey Is there any way how to reduce the interpolation noise? Could I use a low-pass filter whose cutoff frequency I could adapt wrt. playback speed? why? the interpolation noise is what makes it sound so unique, so crunchy, without LP and especially at very sloow playback. with a good analog tube eq and pair of high end analog compressors, it sounds like garlic smear in my ears or maybe even chilli mayo :) cheers ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Jan Baumgart Technischer Mitarbeiter Hochschule für Musik und Darstellende Kunst Eschersheimer Landstr. 29-39 60322 Frankfurt am Main ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
