Audio Input with USB Soundcard on Raspberry PI

Audio Input with USB Soundcard on Raspberry PI

Date	2016-02-05 19:57
From	epalaima
Subject	Audio Input with USB Soundcard on Raspberry PI
	Hi, I'm trying to use Csound on the Raspberry Pi for processing live audio. I am using the usb soundcard that adafruit sells for use with the Pi: https://www.adafruit.com/product/1475 In order to run Csound with the audio card I am using the CsOption commands: -odac:hw:1,0 -idac:hw:1,0 This works great for output, and seems to be recognizing the input device, except that I get the following error message: *** Unable to set number of channels on soundcard Not sure exactly what this means or how to work around it, any advice from someone with experience in this field would be great. Thanks! -- View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946.html Sent from the Csound - General mailing list archive at Nabble.com. Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-05 20:10
From	Victor Lazzarini
Subject	Re: Audio Input with USB Soundcard on Raspberry PI
	How many channels do you have in the card? Use nchnls_i to set the number of input channels you need. And nchnls to set the number of outputs. > On 5 Feb 2016, at 19:57, epalaima wrote: > > Hi, I'm trying to use Csound on the Raspberry Pi for processing live audio. I > am using the usb soundcard that adafruit sells for use with the Pi: > https://www.adafruit.com/product/1475 > > > In order to run Csound with the audio card I am using the CsOption commands: > -odac:hw:1,0 > -idac:hw:1,0 > > This works great for output, and seems to be recognizing the input device, > except that I get the following error message: > *** Unable to set number of channels on soundcard > > Not sure exactly what this means or how to work around it, any advice from > someone with experience in this field would be great. Thanks! > > > > -- > View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946.html > Sent from the Csound - General mailing list archive at Nabble.com. > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-05 20:24
From	epalaima
Subject	Re: Audio Input with USB Soundcard on Raspberry PI
	It says it has a virtual 5.1 CH sound track. I know the output is stereo. -- View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746948.html Sent from the Csound - General mailing list archive at Nabble.com. Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-05 22:27
From	Victor Lazzarini
Subject	Re: Audio Input with USB Soundcard on Raspberry PI
	It might have only mono input maybe, and when you open with nchnls=2 it fails. Try to open it as mono to check. Also, the input device might be a different number from the output. > On 5 Feb 2016, at 20:24, epalaima wrote: > > It says it has a virtual 5.1 CH sound track. I know the output is stereo. > > > > > -- > View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746948.html > Sent from the Csound - General mailing list archive at Nabble.com. > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 01:44
From	epalaima
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	After a little bit more experimenting I seem to have found the issue. Its a weird one! The audio input on the usb card I am using is 1 channel, while the output is 2 channels, meaning that my nchnls setting will be incompatible with one of them. Is there any way to work with a mono input channel and a stereo output? Right now I'm am sending audio through it but I'm using a workaround: audio goes in the soundcard's input and out the raspi's built in out. Very noisy but works at least for this testing phase. Thanks! -- View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746985.html Sent from the Csound - General mailing list archive at Nabble.com. Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 03:12
From	Guillermo Senna
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	This? -> http://www.csounds.com/manual/html/nchnls_i.html On 08/02/16 22:44, epalaima wrote: > After a little bit more experimenting I seem to have found the issue. Its a > weird one! The audio input on the usb card I am using is 1 channel, while > the output is 2 channels, meaning that my nchnls setting will be > incompatible with one of them. Is there any way to work with a mono input > channel and a stereo output? > > Right now I'm am sending audio through it but I'm using a workaround: audio > goes in the soundcard's input and out the raspi's built in out. Very noisy > but works at least for this testing phase. > > Thanks! > > > > -- > View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746985.html > Sent from the Csound - General mailing list archive at Nabble.com. > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 04:15
From	Emmett Palaima
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	Hi, that seems like it should work, but I tried it and still get the error: *** Unable to set number of channels on soundcard Failed to initialise real time audio input Not sure why :/, was sure that was the solution when I saw it On Mon, Feb 8, 2016 at 10:12 PM, Guillermo Senna <gsenna@gmail.com> wrote: This? -> http://www.csounds.com/manual/html/nchnls_i.html On 08/02/16 22:44, epalaima wrote: After a little bit more experimenting I seem to have found the issue. Its a weird one! The audio input on the usb card I am using is 1 channel, while the output is 2 channels, meaning that my nchnls setting will be incompatible with one of them. Is there any way to work with a mono input channel and a stereo output? Right now I'm am sending audio through it but I'm using a workaround: audio goes in the soundcard's input and out the raspi's built in out. Very noisy but works at least for this testing phase. Thanks! -- View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746985.html Sent from the Csound - General mailing list archive at Nabble.com. Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 04:32
From	Guillermo Senna
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	Could you post the result of "aplay -l" and "arecord -l"? On 09/02/16 01:15, Emmett Palaima wrote: Hi, that seems like it should work, but I tried it and still get the error: *** Unable to set number of channels on soundcard Failed to initialise real time audio input Not sure why :/, was sure that was the solution when I saw it On Mon, Feb 8, 2016 at 10:12 PM, Guillermo Senna <gsenna@gmail.com> wrote: This? -> http://www.csounds.com/manual/html/nchnls_i.html On 08/02/16 22:44, epalaima wrote: After a little bit more experimenting I seem to have found the issue. Its a weird one! The audio input on the usb card I am using is 1 channel, while the output is 2 channels, meaning that my nchnls setting will be incompatible with one of them. Is there any way to work with a mono input channel and a stereo output? Right now I'm am sending audio through it but I'm using a workaround: audio goes in the soundcard's input and out the raspi's built in out. Very noisy but works at least for this testing phase. Thanks! -- View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746985.html Sent from the Csound - General mailing list archive at Nabble.com. Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 06:23
From	Victor Lazzarini
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	Actually, there was a bug in nchnls_i, where it was not being set properly. This was fixed a while ago, but the version you are using could still have it, if it is older. On 9 Feb 2016, at 04:32, Guillermo Senna <gsenna@GMAIL.COM> wrote: Could you post the result of "aplay -l" and "arecord -l"? On 09/02/16 01:15, Emmett Palaima wrote: Hi, that seems like it should work, but I tried it and still get the error: *** Unable to set number of channels on soundcard Failed to initialise real time audio input Not sure why :/, was sure that was the solution when I saw it On Mon, Feb 8, 2016 at 10:12 PM, Guillermo Senna <gsenna@gmail.com> wrote: This? -> http://www.csounds.com/manual/html/nchnls_i.html On 08/02/16 22:44, epalaima wrote: After a little bit more experimenting I seem to have found the issue. Its a weird one! The audio input on the usb card I am using is 1 channel, while the output is 2 channels, meaning that my nchnls setting will be incompatible with one of them. Is there any way to work with a mono input channel and a stereo output? Right now I'm am sending audio through it but I'm using a workaround: audio goes in the soundcard's input and out the raspi's built in out. Very noisy but works at least for this testing phase. Thanks! -- View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746985.html Sent from the Csound - General mailing list archive at Nabble.com. Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 09:47
From	epalaima
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	Do you know if the version that one would download through the pi would be older? I installed it on my pi when I got it, which was only a month ago so that doesn't seem very likely unless the version for the pi is outdated. -- View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746991.html Sent from the Csound - General mailing list archive at Nabble.com. Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 09:52
From	Victor Lazzarini
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	What version does it say when you run it? ======================== Dr Victor Lazzarini Dean of Arts, Celtic Studies and Philosophy, Maynooth University, Maynooth, Co Kildare, Ireland Tel: 00 353 7086936 Fax: 00 353 1 7086952 > On 9 Feb 2016, at 09:47, epalaima wrote: > > Do you know if the version that one would download through the pi would be > older? I installed it on my pi when I got it, which was only a month ago so > that doesn't seem very likely unless the version for the pi is outdated. > > > > -- > View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746991.html > Sent from the Csound - General mailing list archive at Nabble.com. > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2016-02-09 10:14
From	Anders Genell
Subject	Re: Mono Input and Stereo Output? [Csnd] Audio Input with USB Soundcard on Raspberry PI
	It might be worthwhile investigating possibilities to upgrade raspbian on your Pi from wheezy to jessie, unless you have already done so, which most likely would make a more recent version of csound available. Maybe Felipe Sateler can chime in as he is, to the best of my knowledge, the maintainer of the csound debian package. Otherwise, building csound from sources is pretty straightforward, albeit a little bit slow on a Pi. Regards, Anders On Tue, Feb 9, 2016 at 10:52 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote: What version does it say when you run it? ======================== Dr Victor Lazzarini Dean of Arts, Celtic Studies and Philosophy, Maynooth University, Maynooth, Co Kildare, Ireland Tel: 00 353 7086936 Fax: 00 353 1 7086952 > On 9 Feb 2016, at 09:47, epalaima <epalaima@berklee.edu> wrote: > > Do you know if the version that one would download through the pi would be > older? I installed it on my pi when I got it, which was only a month ago so > that doesn't seem very likely unless the version for the pi is outdated. > > > > -- > View this message in context: http://csound.1045644.n5.nabble.com/Audio-Input-with-USB-Soundcard-on-Raspberry-PI-tp5746946p5746991.html > Sent from the Csound - General mailing list archive at Nabble.com. > > Csound mailing list > Csound@listserv.heanet.ie > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND > Send bugs reports to > https://github.com/csound/csound/issues > Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here