Linux-audio-user May 2006

linux-audio-user@lists.linuxaudio.org

184 participants
187 discussions

by eun.sung＠no-log.org

>>> eun.sung(a)no-log.org wrote: >>>> i try to use an evolution uc-16 midi/usb controller. >>>> using the snd-usb-audio module makes my system recognize my box but as >>>> i >>>> connect its midi output to any appz midi input i can't sned any midi >>>> message. >>> >>> What are the contents of /proc/asound/cards and the output of >>> "amidi -l"? >> >> cat /proc/asound/cards >> 0 [Intel ]: HDA-Intel - HDA Intel >> HDA Intel at 0xdfebc000 irq 16 >> 1 [Controller ]: USB-Audio - UC-16 USB MIDI Controller >> Evolution Electronics Ltd. UC-16 USB MIDI >> Controller >> at usb-0000:00:1d.3-1, ful >> >> >> amidi -l >> Device Name >> hw:1,0,0 UC-16 USB MIDI Controller MIDI >> >> >> >>>> i use the alsa drivers compiled as kernel modules. could it be the >>>> reason >>>> that it can't work? >>> >>> This should not make any difference. >>> >>> Regards, >>> Clemens >>> >> >> thanks >> jim >> > > sorry for that second post, i forgot to say that my system behaves weird > as i've conneected the usb-audio midi port to an app. so i try to map a > midi controller to anything, that that doesn't work, and then my jack > deamon seems to freeze, so the app. and that's really unpleasant. > i've just seen a serie of post dating from january 2006, concerning some troubles with usb-audio and 2.6.15 kernel, which is the version i use. so i've tried with an old kernel and my controller works perfectly. but i'd like to use a recent kernel, which i'm compiling.

18 years, 4 months

[linux-audio-user] midi connection question

by Julien Claassen

Hi! I want to connect some midi-player to csound. Problem is: csound only seems to support alsa rawmidi and all simple midi-players I use seem only to support alsa-sequencer. So what to do? Thanks for any help in advance! Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net - the Linux TextBased Studio guide

18 years, 4 months

[linux-audio-user] Anyone in DC or Atlanta?

by R Parker

Hi, I'll be in DC from the 4th through the 11th and in Atlanta from the 15th through the 26th. We must have some coffee drinkers in those cities. Send me a phone number off the list and I'll try to call when I'm in town. Ron Parker Mirror Image Studios; owner, producer, engineer Showcore; A1 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 4 months

[linux-audio-user] Copyright/Ownership Warning

by Folderol

Somebody recently posted on here a URL for a song on Myspace.com. Please NEVER do this again. It appears that since being taken over by Murdoch the hosting agent has re-written the contract terms with unbelievable rights claims. They now claim copyright on EVERYTHING posted, including all text, pictures and music. They also reserve the right to modify re-post and even sell all material they host, without notifying you. This applies even after you take down the material yourself - so presumably they archive everything. In most parts of the world such contract terms can not be made retrospective so presumably anything put on there before the Murdoch takeover is safe...ish. However, do you fancy a legal battle with that organisation? -- F

18 years, 4 months

[linux-audio-user] Progress

by Folderol

Hello, 'smee again. After an epic battle with my computer again (but you don't want to hear about that) I've been able to do some updates to my site. Oh rats! Is it REALLY 1:20am? Ghost train is now oggificated and the level increased a little. Awakening The Avenger has a drum track, although I really am not very happy with it. Some of the instruments have also been re-balanced slightly. There are also a couple of new ones. The Devil's Tea Party should send shivers down your spine if I've done it right, and Childhood Past will hopefully evoke wistful memories and make you all go 'Ahhhhhh'. This, at over 7min, is also probably the longest individual track I've composed. Now that I have a decent sound card I'm starting to do something I've wanted to for quite some time; that is combine the best voices and effects of my external synths with beautifully clean sounds I can get from ZynAddSubFX As usual the url is: http://www.folderol.ukfsn.org Enjoy! -- F

18 years, 4 months

[linux-audio-user] Hard lock up when using ALSA midi in

by Nigel Gilbert

Hi all, I've been trying to use Rosegarden or Museseq to compose some music and have discovered that, when software connects to the MIDI IN on my sound card, the machine locks up totally (a reboot is required). I've done the following tests: - Installed vkeybd (virtual midi keyboard) and fluidsynth (virtual synth). - Initially, aconnect shows the following as input and output MIDI ports: nige@sully ~ $ aconnect -i -o client 0: 'System' [type=kernel] 0 'Timer ' 1 'Announce ' client 14: 'Midi Through' [type=kernel] 0 'Midi Through Port-0' client 16: 'MPU-401 MIDI 0-0' [type=kernel] 0 'MPU-401 MIDI 0-0' - After starting vkeybd and fluidsynth: nige@sully ~ $ aconnect -i -o client 0: 'System' [type=kernel] 0 'Timer ' 1 'Announce ' client 14: 'Midi Through' [type=kernel] 0 'Midi Through Port-0' client 16: 'MPU-401 MIDI 0-0' [type=kernel] 0 'MPU-401 MIDI 0-0' client 128: 'Virtual Keyboard' [type=user] 0 'Virtual Keyboard' client 129: 'FLUID Synth (7495)' [type=user] 0 'Synth input port (7495:0)' - Hooking together the keyboard and fluidsynth works (after loading a soundfont into fluidsynth). Playing notes on the virtual keyboard makes audio from the sound card: nige@sully ~ $ aconnect 128:0 129:0 - Disconnect fluidsynth and vkeybd and connect vkeybd to the MIDI port (with a hardware synth attached). Playing notes on the virtual keyboard makes noises from the external synth: nige@sully ~ $ aconnect -d 128:0 129:0 nige@sully ~ $ aconnect 128:0 16:0 - Trying to connect the MIDI port (with external keyboard attached) to fluidsynth causes the system lock up: nige@sully ~ $ aconnect 16:0 129:0 An even simpler way to get the system to lock up is to use aseqdump, this can be done straight after boot up without having to start X or anything: nige@sully ~ $ aseqdump -p 16:0 I presume that the system locking up means it's a kernel thing (in either a module or the main kernel). Oddly, it has worked in the past. Though possibly using OSS only rather than ALSA (it was a while ago). I have a C-Media 8378 card and am using cmipci as my sound card in the kernel (2.6.16). lspci | grep audio 00:0b.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10) My kernel config: Device Drivers Sound <*> Sound card support Advanced Linux Sound Architecture <M> Advanced Linux Sound Architecture <M> Sequencer support <M> Sequencer dummy client <M> OSS Mixer API <M> OSS PCM (digital audio) API [ ] OSS Sequencer API [ ] Support old ALSA API Generic devices <M> Generic MPU-401 UART driver PCI devices <M> C-Media 8738, 8338 Open Sound System < > Open Sound System (DEPRECATED) Any insight into this problem or help getting it working again would be greatly appreciated. I've definitely hit the limit of my understanding of how MIDI should work under ALSA! Thanks in advance, -Nige -- Nigel Gilbert <norb(a)dscape.freeserve.co.uk>

18 years, 4 months

[linux-audio-user] Audio Kanotix

by Renato Fabbri

I am having some problems compiling jack and some apps for Kanotix, has anyone some advice (paths etc). btw, good sa ref __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 4 months

[linux-audio-user] the sc-patch I just played with on the linux audio night in Karlsruhe

by nescivi

(// if a usb sensorinterface is connected to this computer: q = q ?? (); Routine{ LID.closeAll; 1.0.wait; LID.buildDeviceTable; 2.0.wait; LID.closeAll; NASCens_LID.initNASCens; // initialise the deviceSpec q.device = LID.deviceTable.detect( {|it,i| it[1].vendor == 0x1043 } ); q.device.at(0).postln; q.lid = NASCens_LID.new( q.device.at(0) ); q.lid.initActions; }.play( AppClock ); ) q.lid.dumpCaps // preparing the server: s = Server.local.boot; ( SynthDef( "writememory", { arg in=0, buf=0, amp=1, prevlev=0.5; RecordBuf.ar( In.ar(in,2), buf, recLevel: amp, preLevel: prevlev, loop: 1 ); }).load(s); SynthDef( "playmemory", { arg out=0, buf=0, rate=1, amp=0.5, lt = 5, freq=400; Out.ar(out, Lag.kr(amp,lt)*LPF.ar(PlayBuf.ar( 2, buf, Lag.kr(-1*rate,lt), loop: 1 ),freq)); }).load(s); ) // see if it's all working: q.lid.sensordata ( // prepare groups on server q.controlgroup = Group.new(s, \addToHead ); q.maingroup = Group.new(s, \addToHead ); q.subgroups = Array.fill(4,0); q.subgroups.do{|it,i| q.subgroups.put( i, Group.new( q.maingroup ) ) }; q.recgroup = Group.new(s, \addToTail) ; q.playgroup = Group.new( s, \addToTail ); s.queryAllNodes; q.membuf = Buffer.alloc(s, 44100*90.0,2); ) ( q.args = Array.fill( 4, { [\amp,0.25,\out,0] } ); q.durs = Array.fill( 4, { Pseq( [0.25],inf ).asStream } ); q.freqs = Array.fill( 4, { Pseq( [400],inf ).asStream } ); q.streams = Array.fill(4,0); q.streams.do{ |it,i| q.streams.put(i, Task({ var dur,freq; loop { dur = q.durs.at(i).next; freq = q.freqs.at(i).next; x = Synth.new( "lac"++i, q.args.at(i), target:q.subgroups.at(i) ); x.set( \dur, dur ); x.set( \freq, freq ); // x.postln; dur.next.wait; } }); ); }; q.recsynth = Synth.tail(q.recgroup,"writememory",[\buf,q.membuf.bufnum,\in,0,\amp,0.5,\prevlev, 0.9]); q.playsynth = Synth.tail(q.playgroup,"playmemory",[\buf,q.membuf.bufnum,\out,0,\amp,0.4]); ~start = { |id| q.streams.at(id).play; q.lid.setLEDState( id, 1 ); }; ~stop = { |id| q.subgroups.at(id).release(5.0); q.streams.at(id).stop; q.lid.setLEDState( id, 0 ); }; ) ( q.lightcontrol1 = Bus.control( s, 1 ); q.lightcontrol2 = Bus.control( s, 1 ); q.potcontrol = Bus.control( s, 1 ); q.updatecontrols = Routine{ loop { q.lightcontrol1.set( q.lid.sensordata[0] ); q.lightcontrol2.set( q.lid.sensordata[2] ); q.potcontrol.set( q.lid.sensordata[12] * 800 ); 0.005.wait; } }; ) ( q.updatepres = [ Routine{ loop { q.subgroups[0].set(\freqmod, [2.0,0.8].asSpec.map( q.lid.sensordata[3] ) ); 0.005.wait; } }, Routine{ loop { q.subgroups[1].set(\freqmod, [2.0,0.8].asSpec.map( q.lid.sensordata[4] ) ); 0.005.wait; } }, Routine{ loop { q.subgroups[2].set(\freqmod, [2.0,0.8].asSpec.map( q.lid.sensordata[3] ) ); 0.005.wait; } }, Routine{ loop { q.subgroups[3].set(\freqmod, [2.0,0.8].asSpec.map( q.lid.sensordata[4] ) ); 0.005.wait; } } ]; ~startcontrol = { |id| q.updatepres.at(id).play; q.lid.setLEDState( id+4, 1 ); }; ~stopcontrol = { |id| q.updatepres.at(id).stop; q.lid.setLEDState( id+4, 0 ); }; ) // update buses q.updatecontrols.play //q.updatelight.stop; q.playsynth.busMap( \rate, q.lightcontrol1 ); q.playsynth.busMap( \freq, q.potcontrol ); q.recsynth.busMap( \reclevel, q.lightcontrol2 ); s.prepareForRecord; s.record; // from here on, the code was changed live: ( // create a new synthdef: SynthDef( "lac"++3, { |out=0,dur=0.25,amp=0.25,gate=1,freq=200, freqmod=1.0| Out.ar( out, CombL.ar( Mix.new( // BPF.ar( WhiteNoise.ar( 1.0 ), freq*freqmod.lag(0.1), 0.2 ); SinOsc.ar( //freq*freqmod.lag(0.05) Array.geom( 3, freq*freqmod.lag(0.05), 1.5 ), mul: Array.geom( 4, 0.5, 0.9 ) ) ) , 0.2, 0.1, 0.15 ) * EnvGen.kr( Env.cutoff(1), gate, doneAction:2) * EnvGen.kr( Env.sine(1.0), levelScale: amp, timeScale:dur, doneAction: 2 ) ); }).send(s); ) Env.sine( 1 ).plot; Env.perc(0.05,0.95).plot q.durs[2] = Pseq([0.25,0.5,0.25,0.125,0.25]*0.1,inf).asStream; q.freqs[2] = Pseq([400,350,360,370,205],inf).asStream; q.args[2] = [\amp,0.2,\out,1]; q.args[3] = [\amp,0.2,\out,0]; q.freqs[3] = Pseq(Array.geom( 6, 100, 1.4 ),inf).asStream; q.durs[3] = Pseq([1.0,0.4],inf).asStream; ~start.value(1); ~stop.value(1); ~startcontrol.value(1); ~stopcontrol.value(1); //q.subgroups[0].busMap( \freqmod, q.prescontrol1 ); ( q.updatepres.put( 0, Routine{ loop { q.subgroups[0].set(\freqmod, [2.0,0.8].asSpec.map( q.lid.sensordata[3] ) ); 0.005.wait; } } ); ) s.stopRecording;

18 years, 4 months

[linux-audio-user] USB audio interface - Terratec Phase26 any good?

by Peter Clarke

Dear all, In the hope of getting my Novation Speedio USB audio interface to work properly, I've updated my Gentoo box to kernel 2.6.16, ALSA 1.0.11... but it still sounds like underwater gargling. So, it's time to give up on this and get me a USB audio interface that WILL work. It looks like the Terratec Phase26 would do what I want quite nicely (except for those nasty RCA connectors - too unreliable for my liking). Has anyone used this successfully? If that's not suitable, maybe I'll go for an Edirol UA-25, which is often highly praised on this list. Unfortunately it lacks a coax digital input, which would be helpful (cos my hardware synth has a coax digital output). Thanks for any comments, Peter C

18 years, 4 months

[linux-audio-user] Re: distorting Linuxsampler

by Juhana Sadeharju

>From: Paul Davis <paul(a)linuxaudiosystems.com> > >this assumption that inclusion in a distro is the only way to get >software to linux users needs careful examination. No need to examine anything. Take a look at Windows: it does not include a single usable software. If that is what people want, I move to Mac. Also, take a look at how software are downloaded from the webpages: too much clicking, waiting, and expected user intervention. Waste of time. If it only would be Ardour, would there be no big problem. But we are talking about hundreds of programs, including the required libraries. With distributions it is a matter of a single click for thousands of programs. Summer 2002 Debian has 7 GB of source codes in 6500 program directories. The distributions could be better: because the documentation is not included, I have had to download from the original site in any case. The sites could be better: most of the time I give up and download the entire site and the entire sourceforge file folder, only because downloading N files and pages would require too much user intervention. The documentation often is not in downloadable format but distributed over tens of pages. A couple of wgets takes 15 seconds to type and I'm free for other projects. The latest program package is then easily found with the find program. Note that webbrowsers cannot provide a complete view to the site: files are hard to find and often are missed even after hours of browsing! Last, the distributions are valuable as historical archives. Many software gets old but the algorithms and technology in them may well be usable in new software. The distributions also work as reference material when coding. If software authors don't understand the usability of distributions and software archives, that is ok but they never should make it impossible for others to create the distributions and archives. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

18 years, 4 months

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Linux-audio-user May 2006