Linux-audio-user April 2006

linux-audio-user@lists.linuxaudio.org

171 participants
186 discussions

[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;

17 years, 11 months

[linux-audio-user] Help creating digital sound production box

by Ronald Vazquez

Hello list: I wanted to get the lists's idea of what would take to create the *ultimate* digital recording rig with Linux. What software is there that would be comparable to Windows' Sonar? What about in terms of sound card, which one do you recommend (price range < $1,000)? Thanks in advance, -- ///////////////////////////////////// Ronald Vincent Vazquez Senior Unix Systems Administrator Senior Network Manager Christ Tabernacle Church Ministries http://www.ctcministries.org/ (301) 540-9394 Home (240) 401-9192 Cell

17 years, 11 months

[linux-audio-user] Re: Mastering without mastering

by Phil Mendelsohn

Bruce wrote: > I was just watching the talk on Protege at zkm 2006 and a bit of a crazy > idea occured to me. In addition to storing qualities of each instrument > like > lead, string, percussive etc, a spectral profile could be generated for > each > instrument and stored in the database. Then, you could take each channel > of > your recording and pipe them (individually) into an app which would > analyse > their spectral content, and then suggest alternative patches to make the > 'whole' sound like some idealised mix (there would be a selection of > these, > based on Genre perhaps). It would be like a magic button which would make > a > track sound immediately better. > > Any thoughts ? Just three. I'm not being snippy, just providing the canonical response. 1: This isn't an original idea. It rears it's ugly head every so often. 2: There is no practical way to define the parameters that determine what an "ideal" mix would be. 3: Even if you could, you wouldn't want to. Any endeavour that can be completely reduced to a deterministic algorithm is no longer art. The study of *how* to define ideal might be instructive for fleshing out your own ideas of what sounds good, but you don't want to eliminate the possibility of other options. In fact, there are so many, that it's impossible to define. (Though imprecise guidelines are a possibility.) If I had to wish for a magic button, I'd ask it to do something that I *wasn't* able to do -- like Whirled Peas or such. ;) Good luck with that! Phil M -- Dept. of Mathematics, 342 Machray Hall U. of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 Office: 446 Machray Hall, 204-474-6470 http://www.rephil.org/ phil at rephil dot org

17 years, 11 months

[linux-audio-user] [ANN] Simple Sysexxer 0.1

by Christoph Eckert

Hi all, as it is LAC time, it's also release time :) . Simple Sysexxer is a GUI sysex tool comparable to Sysexxer, but it's based on Qt4 (no KDE dependency) and ALSA only (no OSS dependency). Theoretically it should also build and run on Mac OS X, but I didn't try it yet. Feedback and bugreports are always welcome. Information and source code: http://www.christeck.de Best regards ce

17 years, 11 months

[linux-audio-user] linux software for audio re-mastering

by Brian Redfern

Hi guys, I wonder if anyone is using linux audio for re-mastering. My old band back in the early 90s did some awsome stuff, but it was all on crappy tapes, and I'd like to clean it up and put it out for free on archive.org, but the "noise removal" plugin in audacity certainly isn't up to snuff, it has too much "chipmonking" going on. My friend told me about fft, where you same the tape hiss, and then use that to remove hiss without "chipmonking", but he's using protools for that, while I'm running only linux audio.

17 years, 11 months

[linux-audio-user] How can PC + external amps become whole house audio system ?

by Robert Rozman

Hi, I'm designing integrated home automation/entertainment system based on Linux and other open source apps. I have several possible sound sources (like Festival as speech synthesis, music players, VOIP or ordinary telephony applications, intercom) and several sound destinations (rooms in my house - can be either remote desktop running some network audio client or separate output on multichannel local audio card). Now I'd like to implement 'virtual' audio router/mixer in software that can be dynamically controlled from other program language (Perl is preffered in my case). I'd need to combine several audio sources to each sound destination (like big software switching/mixing/routing black box), dynamically change volumes, add/remove chains etc... Some possible scenarions: - when internet voice call comes in, then I connect to certain channel on audio card for certain room (route two way audio stream that comes from Internet to certain audio destination/source) - when watching TV (sound going to some audio card output), speech synthesis would like to announce something (I'd like to volume down TV audio and mix speech, and then go with TV volume to normal level) - from one room I'd like to talk to another... If I think ideally - best would be to have range of "virtual" sound destinations, that could be dinamically routed,mixed to physical devices. As far as my novice knowledge goes I was thinking of using Alsaplayers as music/wav players (they have software volume control) , Festival as speech synthesis, some softphone for IP telephony (that could output to ecasound or Jack) and every other valuable suggestion for software package I get. I don't know much of Jack, maybe its also part of solution.... Any other advice in apps to use, more info or any other opinion would be more than grateful. Also if anyone made some effort or thinking in this direction - it'll be of great help... Thanks in advance, regards, Rob.

17 years, 11 months

[linux-audio-user] looking for link to reel-to-reel comparisons

by Dan Easley

someone posted a link to this list in the last few months to a web page with frequency response charts for a large number of reel-to-reel recorders, using various methods of calibration. it was comprehensive and impressive, and i have comprehensively lost that link. it's an incredible rhetorical tool for the digital vs. analog controversy - i've spent about half-an-hour searching the archives for it, and just can't find it. if whoever sent that, or someone else who noticed it, could send me that link again, i'd be very much obliged. -- daneasley(a)gmail.com dan(a)towndowner.com dan(a)burntpossum.com http://towndowner.com http://burntpossum.com

17 years, 11 months

[linux-audio-user] soundblaster live type card 3.3 volts ?

by paul wisehart

Hi, I am looking to get one of the sound blaster cards that has alsa supported wavetable-synth. (I'ved used AWE32 , and cheap Live! cards well.) What I want now is one that works with a 3.3 voltage pci slot. These would be ones that have the "notch" towards the outside part of the card. Or, one that has two notches signifying that its 3.3 or 5 volt pci compatible. Does anybody know of an Live!/Audigy version of the card the works in a 3.3 sloy and alsa supports the wave-table ? thanks, paul w

17 years, 11 months

[linux-audio-user] mixed with Ardour

by Patrick Shirkey

Hi, I have just uploaded a mix I've been sitting on for a while. It's not original tunes but is mixed with ardour and their is even some remixing going on too. It's Dub style so not for everyone. http://djcj.org/audio/kotau/dub-session-kotau-1.mp3 It's 25 mins long so I can't be f'd doing an .ogg version too. If it was an original composition I would. Cheers. -- Patrick Shirkey - Boost Hardware Ltd. Http://www.boosthardware.com Http://www.djcj.org/LAU/guide/ - The Linux Audio Users guide ======================================== "Anything your mind can see you can manifest physically, then it will become reality" - Macka B

17 years, 11 months

[linux-audio-user] [ANN] Ecmd version 0.81 released

by Joel Roth

Ecmd is one of several programs available to automate multitrack recording, playback, mixing, and effects processing using Ecasound. Version 0.81 has several important bugfixes and simplified configuration. Download from http://ecmdr.infogami.com ----------------------------------------------------- Changelog for version 0.81, 2006.4.27 Configuration file is now part of the main program file for easier installation. Non-functioning transport controls bug fixed, after an embarrassing post to Ecasound list blaming Ecasound. Global version radiobuttons under **Tracker** menubutton now show correct versions Global versions selection updated correctly after loading a different session or creating a new one. Position indicator now zeroes following a change in global version number. Set mark button had been overwritten. Fixed. -- Joel Roth

17 years, 11 months

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Linux-audio-user April 2006