Linux-audio-user March 2007

linux-audio-user@lists.linuxaudio.org

183 participants
203 discussions

[linux-audio-user] Using the latest Rosegarden

by Folderol

I'm now using Rosegarden V 1.5.1, and for those who haven't upgraded yet I very strongly recommend it, especially if you do a lot of work in the matrix editor. There have been a lot of quite small improvements that have a major impact on ease of use. Things like automatically remembering where you last stopped, and going back there with a second click on 'stop'; Remembering the velocity of the last note you drew and using that for the next one; remembering how you left the grid state for a track; Copy & paste improvements; ... and more :) -- Will J G

17 years, 5 months

[linux-audio-user] MAudio Quattro help

by Jim Steed

I'm trying to use all 4 input channels on a MAudio Quattro on Fedora Core 5 running on a Playstation 3 (PPC build of the kernel with some stuff stripped out). The final app will just use open() and read() to process the data directly. In that application it looks like I get 2 copies of the first 2 channels. I get Channel 0 replicated in Channel 2 with exactly the same values, and Channel 1 replicated in Channel 3. (Recording 16 bit at 44.1kHz) I followed the directions in http://wiki.linuxquestions.org/wiki/M-Audio_Quattro to setup .asoundrc. I am trying to debug using just arecord but I can't get it to do anything arecord -r 44100 -c 4 -f s16_le -D q4 -d 5 test4.wav gives me arecord: xrun:1082: read/write error, state = PREPARED Any help would be appreciated. Thanks, Jim Steed Here is the relevant part of /proc/bus/usb/devices: T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0763 ProdID=2001 Rev= 1.05 S: Manufacturer=M Audio S: Product=USB Audio Quattro C:* #Ifs=10 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio I: If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 1 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=03(O) Atr=09(Isoc) MxPS= 192 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 2 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=85(I) Atr=0d(Isoc) MxPS= 192 Ivl=1ms I: If#= 3 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio I: If#= 4 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 4 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=03(O) Atr=09(Isoc) MxPS= 576 Ivl=1ms I: If#= 4 Alt= 3 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=03(O) Atr=09(Isoc) MxPS= 288 Ivl=1ms I: If#= 4 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=03(O) Atr=09(Isoc) MxPS= 192 Ivl=1ms I: If#= 5 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 5 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=85(I) Atr=0d(Isoc) MxPS= 576 Ivl=1ms I: If#= 5 Alt= 3 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=85(I) Atr=0d(Isoc) MxPS= 288 Ivl=1ms I: If#= 5 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=85(I) Atr=0d(Isoc) MxPS= 192 Ivl=1ms I: If#= 6 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio I: If#= 7 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 7 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=04(O) Atr=09(Isoc) MxPS= 576 Ivl=1ms I: If#= 7 Alt= 3 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=04(O) Atr=09(Isoc) MxPS= 288 Ivl=1ms I: If#= 7 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=04(O) Atr=09(Isoc) MxPS= 192 Ivl=1ms I: If#= 8 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 8 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=86(I) Atr=0d(Isoc) MxPS= 576 Ivl=1ms I: If#= 8 Alt= 3 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=86(I) Atr=0d(Isoc) MxPS= 288 Ivl=1ms I: If#= 8 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=86(I) Atr=0d(Isoc) MxPS= 192 Ivl=1ms I: If#= 9 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=snd-usb-audio E: Ad=81(I) Atr=03(Int.) MxPS= 32 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms

17 years, 5 months

[linux-audio-user] Call for laptop musicians in San Jose?

by Ken Restivo

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Saw this on Craigslist, figured there might be a couple people on this list who might want to show up with penguin stickers on their laptops: http://sfbay.craigslist.org/sfc/muc/299620651.html - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGCDaae8HF+6xeOIcRAikqAJsGuBQH7GBUc/CsvyUinMwQ47qqKwCgtUr0 eFVOn50+qy/gFGF003NCZgU= =d/2C -----END PGP SIGNATURE-----

17 years, 5 months

[linux-audio-user] [ANN] GMIDImonitor 3.2 released

by Nedko Arnaudov

GMIDImonitor is GTK+ application that shows MIDI events. New in this release: * Fix bug causing stalled midi events after burst followed by silence * Decode jack midi reset message (by Edward Tomasz Napierala) * Add some instructions about using GMIDImonitor. Project site: https://gmidimonitor.bountysource.com/ Screenshot: https://gmidimonitor.bountysource.com/FileDownload?file_id=50&inline=yes Source tarball can be downloaded from project site, "Downloads" section -- Nedko Arnaudov <GnuPG KeyID: DE1716B0>

17 years, 5 months

[linux-audio-user] To MacBook or not to MacBook, that's the question

by Pieter Palmers

Hi all, I'm considering to buy a new laptop, and a message some time ago on the list regarding a comparison between Dell and MacBook made me reconsider my stance towards MacBook. The difference between the price for comparable systems is indeed not that big, especially not since they offer a 20% reduction if you become 'student developer'. On top of that, getting OSX attracts me more than getting Vista ;). So now I am considering getting one of these top-notch macbook pro's, but I'd like to inform myself beforehand. My basic requirement list: * runs linux with all hardware supported * ruggedness (I carry it around everywhere) * support quality (Apple's guarantee doesn't seem as good as the one from Dell) Specific questions: * what kind of problems will I see when I want to install Fedora on it? * are all interrupts routed to the same line (as in the mini's)? I don't want IRQ sharing between the SATA controller and the audio card/firewire controller, ... * how about the ATI x1600 graphics card? Are there any MacBook pro owners on the list that care to answer my questions and/or give a general feedback (feedforward?) on the MacBook? Thanks, Pieter

17 years, 5 months

[linux-audio-user] phase vocoding app

by naysayer

hey crew, just wondering if someone knows of a good simple application that i can do some high resolution transposing of sound without stretching compressing the audio file. i know that i can do it in pd with all the wonderful fft tools there but i want to be able to do in the non real time world so i can do a bunch of files. would be cool if there was something like rezound. i have had a look at SND but got a bit overwhelmed by it. if someone knows a basic method in SND that would be warmly welcomed as well. thanks.

17 years, 5 months

[linux-audio-user] Dead soundcard, or what?

by Paul Winkler

Here's a new one on me... Earlier today, my consumer-grade card was working fine. It's an old Creative aka Ensoniq card, specifically a 5880 AudioPCI (rev 02) according to lspci. I haven't installed or upgraded any software in a few days, no problems at all... then just now, I tried to play a CD and only could hear the left channel. I fired up alsamixer, which appears to work normally, except that nothing I do brings up the right channel... it LOOKS like it's up but I don't hear anything. Must be cables, right? I checked all the connections, swapped cables, and confirmed that only the left channel is appearing at the soundcard output jack. Maybe it's the internal CD cable? I then tried playing some audio files (mp3, wav, whatever) and ... this is where it gets really odd... any app I try appears to hang, and I get no sound at all! For example, here's an excerpt of the output from strace mpg123: ... write(2, "MPEG 1.0 layer III, 128 kbit/s, "..., 54MPEG 1.0 layer III, 128 kbit/s, 44100 Hz joint-stereo ) = 54 open("/dev/dsp", O_WRONLY) = 4 ioctl(4, SNDCTL_DSP_RESET, 0) = 0 ioctl(4, SNDCTL_DSP_SETFMT or SOUND_PCM_READ_BITS, 0x7fff93b8ac2c) = 0 ioctl(4, SNDCTL_DSP_STEREO, 0x7fff93b8ac2c) = 0 ioctl(4, SNDCTL_DSP_SPEED or SOUND_PCM_READ_RATE, 0x7fff93b8ac44) = 0 close(4) = 0 open("/dev/dsp", O_WRONLY) = 4 ioctl(4, SNDCTL_DSP_RESET, 0) = 0 ioctl(4, SNDCTL_DSP_SETFMT or SOUND_PCM_READ_BITS, 0x7fff93b8ad4c) = 0 ioctl(4, SNDCTL_DSP_STEREO, 0x7fff93b8ad4c) = 0 ioctl(4, SNDCTL_DSP_SPEED or SOUND_PCM_READ_RATE, 0x7fff93b8ad64) = 0 write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 16384) = 16384 read(3, "x\17\23z.E\v/2to\212\370\220<\302\274\r\20\207\26\f=%\321"..., 414) = 414 read(3, "\377\373\222d", 4) = 4 read(3, "^\r\323\306H\304\3\0172\362b\'8\220e\203\244Ni%\22,\260"..., 414) = 414 read(3, "\377\373\222D", 4) = 4 read(3, "C\215SrDD\223\t\35\260n)\230\206=#\214\16\r3\20,\274t\201"..., 414) = 414 read(3, "\377\373\222D", 4) = 4 read(3, "#\201\223\223J\304\vO\32\362y\v\310\211<b\346\v\354\177"..., 414) = 414 write(4, "\361\377\370\377\362\377\372\377\360\377\373\377\355\377"..., 16384) = 16384 read(3, "\377\373\222d", 4) = 4 read(3, "\f\215\3238(a)F\251\351\35$Z%\10\302a\346.\ft\311\30,0\311"..., 414) = 414 read(3, "\377\373\222d", 4) = 4 read(3, "\f\205\23\0170E\203\0172r]\304(\266a\351>MX\307\26\254"..., 414) = 414 read(3, "\377\373\222d", 4) = 4 read(3, "\r\214\323e(a)\305\203\f3\300Wc\330\260a\351.\r\\\307\30"..., 414) = 414 write(4, "\0\0\374\377\1\0\372\377\3\0\370\377\6\0\370\377\v\0\371"..., 16384) = 16384 read(3, "\377\373\222d", 4) = 4 read(3, "\f\rSgJ\305\3\f\35 Pe(\266a\203\226\r]!\26,0o\301M\17\242"..., 414) = 414 read(3, "\377\373\222d", 4) = 4 read(3, "\r\4\363PP\306\3\f\33pP\244\370\305a\351.\r\344\325\35"..., 414) = 414 read(3, "\377\373\222d", 4) = 4 read(3, "\23\4\30310\306\251\3542pUe\310\321=\206>\f\20\257\32\254"..., 414) = 414 read(3, "\377\373\222d", 4) = 4 read(3, "\33\200\323\n6\306\253\f\32\360L\2038\300a,\"\vL\221\32"..., 414) = 414 write(4, "\f\0\t\0\r\0\v\0\17\0\f\0\17\0\n\0\17\0\t\0\17\0\n\0\21"..., 16384) = 16384 read(3, "\377\373\222d", 4) = 4 read(3, "-\5\322\344*\306\303\f1rM%\30\321a&N\213\234\341\32,$\307"..., 414) = 414 read(3, "\377\373\222D", 4) = 4 read(3, "@\200\2\261!\307K\0172pX\247(\345<\303\36\n\220\245\34"..., 414) = 414 read(3, "\377\373\222D", 4) = 4 read(3, "R\200\2\2560\310K\f1rT\310yL<\303\n\n\220\251!\'\244i\311"..., 414) = 414 write(4, "\370\377\3\0\371\377\3\0\370\377\3\0\367\377\3\0\366\377"..., 16384) = -1 EIO (Input/output error) read(3, "\377\373\222D", 4) = 4 read(3, "h\5\2\332/G\311\346\25\260]H\31\31A&\10\nt\241\36L0\307"..., 414) = 414 read(3, "\377\373\222D", 4) = 4 read(3, "u\f\22\334)\306\213\17\32v]\307\330\365=&\6\v(\251\34,"..., 414) = 414 read(3, "\377\373\222D", 4) = 4 read(3, "|\205\22\343*\3071\3541r]\250i\10<\303f\vp\245\34\3140"..., 414) = 414 read(3, "\377\373\222D", 4) = 4 read(3, "\202\204\23\0048G3\0171\360_\10\210\325=&2\v\264\231\30"..., 414) = 414 write(4, "\367\377\21\0\367\377\r\0\367\377\r\0\370\377\16\0\372"..., 16384) = -1 EIO (Input/output error) ... and so on. I tried restarting alsa (/etc/init.d/alsasound restart), no joy. I tried shutting down the whole box, restarting it, still no joy. WTF? Is my hardware fried? -- Paul Winkler http://www.slinkp.com

17 years, 5 months

[linux-audio-user] Installing realtime kernel - gentoo ERRORs loading realtime module

by Brad Fuller

I'm following the directions on the wiki for the RT kernel at: http://proaudio.tuxfamily.org/wiki/index.php?title=Realtime_%28RT%29_Kernel and I'm at the point of modprobe'ing the realtime module in the instructions which say: ----------------- load realtime-lsm # modprobe commoncap # modprobe realtime gid=18 ----------------- But, I receive this error: FATAL: Error inserting realtime (/lib/modules/2.6.16-rt29-tglx4/extra/realtime.ko): Invalid module format-- when modprobe'ing the "realtime" module. Why is this? The kernel and the module were compiled with the same tools. Michel Dominique in the gentoo audio forum suggested to # make mrproper" # make oldconfig; make # remove /lib/modules/2.6.16-rt-tglx4 # make modules_install reinstall the kernel and reinstall realtime-lsm but that didn't change anything. === Maybe some hints: I find that if I rmmod commoncap and then modprobe realtime it works, realtime loads with no error. However, when I then modprobe commoncap (with "realtime" already in) I receive the same error as I do above: FATAL: Error inserting commoncap (/lib/modules/2.6.16-rt29-tglx4/kernel/security/commoncap.ko): Invalid module format I don't know if order is an issue for the loading of these two modules, but I don't know what the problem is. With the realtime module loaded and no commoncap, audio plays but is very very slow. Any one have any ideas on this? -- brad fuller http://www.Sonaural.com/ +1 (408) 799-6124

17 years, 5 months

[linux-audio-user] Legalities

by Bob van der Poel

Anyone know much about the legalities of posting music recorded by oneself, but written by someone else? I put up a few recordings on my web site, mostly as a demo of MMA ... but I got to wondering the other day if some nice lawyer is going to be knocking on my door? I'm not too worried since I do live in Canada, and the server is <somewhere in Europe>. But, still ... one has to wonder. In my case, I didn't write the music. But, I'm the "artist" (and recording engineer, etc.). And, I'm not selling anything. And, they are just demos. So, should I worry? Should I take them down? -- Bob van der Poel ** Wynndel, British Columbia, CANADA ** EMAIL: bob(a)mellowood.ca WWW: http://www.mellowood.ca

17 years, 5 months

[linux-audio-user] LAC-Konzertreport auf SWR2 15.5. 23h (German only)

by Michael Iber

Hi everybody, my report (in German) on this year's LAC will be broadcasted on SWR2 (German National Radio) today at 23h (MET) in JetztMusik-Magazin. The report focusses on the Wavefield-Synthesis and Recursive Dog Collective. There is also a live stream available at www.swr2.de Thanks to the organizers for all their efforts to make this great event possible, Michael Michael Iber mail(a)michael-iber.de www.michael-iber.de

17 years, 5 months

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Linux-audio-user March 2007