Linux-audio-user

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20662 discussions

[linux-audio-user] tuning 2.6 for low lat. Testers wanted

by Patrick Shirkey

Andrew Morton has asked for testers to submit data regarding xruns while using the 2.6.6preempt kernel. Here's the details: ------- What we need to do is to encourage audio testers to use ALSA drivers, to enable CONFIG_SND_DEBUG in the kernel build and to set /proc/asound/*/*/xrun_debug and to send us the traces which result from underruns. You'll have the best chance of getting decent traces with CONFIG_FRAME_POINTER=y and CONFIG_4KSTACKS=n, but I'm not sure that this will help a lot. Make sure that CONFIG_PREEMPT is enabled. ------- -- Patrick Shirkey - Boost Hardware Ltd. Http://www.boosthardware.com Http://www.djcj.org/LAU/guide/ - The Linux Audio Users guide Http://www.djcj.org/gigs/ - Gigs guide Korea Http://www.nana7.net - Bar Nana - Itaewon, Seoul, Sth Corea ======================================== Apparently upon the beginning of the barrage, the donkey broke discipline and panicked, toppling the cart. At that point, the rockets disconnected from the timer, leaving them strewn around the street. Tethered to the now toppled cart, the donkey was unable to escape before the arrival of U.S. troops. United Press International Rockets on donkeys hit major Baghdad sites By P. MITCHELL PROTHERO Published 11/21/2003 11:13 AM

21 years, 4 months

[linux-audio-user] distros

by Brian Redfern

I like suse 9.2 myself, but I install for free over ftp, and then grab all of the development libraries so its easy to recompile from source when I need to. The other distro I like is demudi, but suse 9.2 comes with the 2.6 kernel, so my usb stuff works better than with the 2.4 kernel, and I don't have to recompile my kernel to have decent latency performance.

21 years, 4 months

[linux-audio-user] midi issues...

by Russell Hanaghan

Hi gang. I have a Delta 1010LT and I want to run and external sequencer thru the midi in port to run a soft synth like Fluid with a GM or GS font set. I use this midi in port already for an external controller that controls mixer items in Ardour. When Ardour is open, I don't seem to be able to connect the Qsynth port to the Delta midi in port. Is this normal? If so, is there somekind of virtual splitter out there. Winblows has several(Don't know what all of its capabilities were)...one virtual midi input and 2,3,4 or more separate midi outs for running different gear. And then could I run 16 channels of sequenced midi data into the linux box to softsynth and still run Ardour separately using the same midi in port to control the surfaces in Ardour. thanks R~

21 years, 4 months

Re: [linux-audio-user] Note typesetting for Linux

by ricktaylor＠speakeasy.net

> From: tim hall [mailto:tech@glastonburymusic.org.uk] > Last Tuesday 13 July 2004 22:44, ricktaylor(a)speakeasy.net was like: > > :} One file format to bind them all... > > While (other) people are still using IE6, our options will be limited. Some IE6 is actually a pretty good browser. I like Mozilla better. > form of xml would seem the logical way to go, with a standard syntax based on > what we already have. It would be nice to be able to realise scores on web > browsers without having to resort to using images. http://www.w3.org/AudioVideo/ I'm fine with smil... I think it's more appropriate to what I do. XML is probably just as good... I really didn't mean to diss traditional notation above. I have all the respect in the world for it. I do think we need file formats and notation types that are better suited to computer music and to newer techniques... :} I'm seeing images as perks.

21 years, 4 months

Re: [linux-audio-user] distros

by David M

Hi Can I just at this point whole heartedly recommend debian - certainly the so called unstable branch. I must admit that messing with lowlat and preemptive patch has been messy. However after reading the last few days of debate about the problems with the 2.6 kernel. I decided to try debian stock 2.6.7 and i must admit that it seems to work as good -but probably better than the 2.4ll+pre. This is of course using the LD_ASSUME stuff. One point though if somebody knows how to set global environment variables that work within the point and click environment within kde (.profile doesnt seem to work) I certainly would like to know. Dave

21 years, 4 months

[linux-audio-user] ecasound/alsa question

by Aaron Trumm

Hello y'all - somebody's bound to know this one - i can't quite find it in tutorials or examples i'm trying to record multiple tracks at once (different tracks into ecasound) and also play them back as seperate tracks sent to seperate outputs (as i am always trying to do) i believe i succeeded at this last night using jack, like so: input: ecasound -c -r -b:64 -f:16,1,48000 -a:1 -i jack_alsa,alsa_pcm:capture_1 -o track1.wav -a:2 -i jack_alsa,alsa_pcm:capture_2 -o track2.wav and output: ecasound -c -r -a:1 -i track1.wav -o jack_alsa,alsa_pcm:playback_1 -a:2 -i track2.wav -o jack_alsa,alsa_pcm:playback_2 but i'd like to do it without jack now - possible? I would think so - using the same addressing as aconnect uses right? but i don't remember the syntax - can't find the emails mark k. wrote me about that very thing... anybody care to re-enlighten me? :)

21 years, 4 months

[linux-audio-user] 24-track setup question

by urban schlemmer

hi list, is there any _tested_ setup to record 24 tracks (with rme digiface or hdsp5296 preferrably) under linux? whitch distro ? whitch app? must be very _stable_ . any experiences greatly appreciated. urban http://www.nusurf.at/

21 years, 4 months

Re: [linux-audio-user] Note typesetting for Linux

by ricktaylor＠speakeasy.net

> From: tim hall [mailto:tech@glastonburymusic.org.uk] > Last Tuesday 13 July 2004 02:43, ricktaylor(a)speakeasy.net was like: > > > Entering textual representation of music and following certain _markup_ > > > rules is not programming. If it were so, simply scoring should be > > > considered programming, too. > > > > It probably is in csound. > > Surely it counts as scripting, like an html page or postscript file and thus > can be considered the 'source' of a piece of music. > > > I think the above methods need to somehow be extended to work with > > samples. Either that or computer audio needs its own form of musical > > representation. > > > > Maybe we need to just skip the idea of any sort of representation outside > > of a song or audio file? If so... maybe we need to break with tradition a > > bit and make "song" files themselves provide a higher degree of > > functionality? > > A score needs to be a human-readable explanation of how to realise the piece > of music so that it sounds the way the composer intended. The use of samples > in a piece would need specifying in the same place as the rest of the > instrumentation with clear directions of how to get hold of these samples. > These things could easily be represented by an icon and a link. So any net enabled computer could read this sound file... http://wam.inrialpes.fr/software/limsee2/ I really don't see the point of distributing the file with sequencing information. The audio itself is as descriptive of the sequence as the song file could be. If there were a sufficient number of online sample servers {with sufficient bandwidth...} it might begin to make sense. Most of what I use {that I call samples} is around the length of a standard song {1-8 minutes}. I really don't use loops as loops... I use them to generate longer sequences which, in turn, get mixed into the mix. :} {My stuff is probably more properly defined as "sound" than "noise".} > > > I don't think that computer programs should reflect the physical world > > > we operate in. Not always anyways, there surely are better ways of > > > dealing with certain issues. > > > > I think they should probably reflect the "reality" they deal with. > > I also think they need an overhaul. > > I think scoring is an art form in itself, I also think that the conventional > form of musical score is an anachronism that belongs with the musical > fashions of 1700 to 1950. I also enjoy working with the random factor of > interpretation so I like to present my performers with alien looking musical > maps to explore sometimes, but I wouldn't want to do that to my community > choir, I'd never hear the end of it! ~They get conventional scores ;-)~ I think you're probably right in calling it an "anachronism" and leaving it at that. I think it's time to move on to XML and SMIL {with appropriate extensions for sequencing languages like csound, ...midi, etc. } and to present stuff over the web or with large 4 color glossy inkjet prints. > If you deal with any amount of electronic instruments, then your scoring > language will require considerable extension. If it contains computerised > elements, then we may as well use existing computer conventions to describe > those elements. I think the reality of that is burning it all to CD and > distributing that with the score if it's that important to the piece. Then > you get to the point where it works out cheaper just to put the score on the > CD as well and have done with it! Usually I find there's enough room for > several demo versions, and there you have it, rehearsal copies for all into > the bargain. I'm for putting it on cd... Are we talking "language" or "file format" here? {Seems to me that any sufficently enabled file format should be readable in just about any language. :}} :} One file format to bind them all...

21 years, 4 months

Re: [linux-audio-user] Finale for Linux

by ricktaylor＠speakeasy.net

> From: tim hall [mailto:tech@glastonburymusic.org.uk] > Last Tuesday 13 July 2004 20:38, ricktaylor(a)speakeasy.net was like: > > That freedom of choice is what I'm thinking to preserve. ...And what you > > say above that you want to deny others. > > > > How do you justify denying others the same rights that you have? > > How am I denying other people's rights? > I don't understand your point here. You're denying them the right to chose whether they want to write shareware or "free" software. {Hypothetically...}

21 years, 4 months

Re: [linux-audio-user] distros

by ricktaylor＠speakeasy.net

> From: mik [mailto:mprims@skynet.be] > On Tue, 13 Jul 2004 21:11:41 +0100 someone called David M wrote: > > > One point though if somebody knows how to set global environment variables > > that work within the point and click environment within kde (.profile doesnt > > seem to work) I certainly would like to know. > /etc/environment ? There is a section in khelpcenter that tells how to change most of the things that effect kdesktop. Other than that you should be able to change things normally. I don't use the actual desktop anymore... {Just the applications from windowmaker} I'm not 100% certain but can't recall having problems with setting things from a terminal or set up files.

21 years, 4 months

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Linux-audio-user