Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

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7445 discussions

by Vincent Meserette

Hi all, I'm trying to use alsa with a buffer size other than a power of two for capture. If a define a buffer size of 8000 in my /etc/asound.conf file and if I use arecord it works, but if I try to access to the samples in my code with the snd_pcm_readi function and this size of buffer I have an EPIPE error. Does anyone know from where could comes the problem ? Thanks in advance Vincent

15 years

Re: [LAD] Non-daw, non-sequencer (fork?)

by rosea grammostola

Danni Coy wrote: > I have taken a look at non daw - and I have to say that I am sold on > the concept (particularly using jack/lash/midi infrastructure wherever > possible) > there are a few extra features I would like to see added. But am > incredibly busy at the moment. Danni, That would be cool! I posted this cause it will be a lost for Linux Audio if this dies imho. Btw I think I found one disadvantage in the workflow of non-sequencer. You can choose a scale to work in, but the disadvantage afaik is that you can't choose notes outsides that scale. Maybe I'm wrong, but if I'm right it seems to narrow the possibilities quite a bit. \r

15 years

Re: [LAD] phasex-0.12.0-pre1

by Ralf Mardorf

Oops, wrong list. -------- Original Message -------- Subject: Re: [LAD] phasex-0.12.0-pre1 Date: Wed, 30 Sep 2009 14:31:19 +0200 From: Ralf Mardorf <ralf.mardorf(a)alice-dsl.net> To: William Weston <weston(a)sysex.net> CC: linux-audio-user(a)lists.linuxaudio.org References: <alpine.LFD.2.00.0909300423380.29352(a)astarte.lysdexia.org> William Weston wrote: > Download phasex and hear for yourself... > > http://sysex.net/phasex/ > > Alternatively, you can utilize the git repositoty: > > git clone http://sysex.net/git/phasex.git > The screenshots are bright :), I'll compile it within the next days. Is there a DSSI version available? Ralf -- Taking a look at the screenshots reminds me to ask something OT: Does anybody know an insiders' tip were to get CME microchips for old faithful analog synth by a fair price?

15 years

: "Open midi-keyboard"

by Jeff McClintock

> > > features would you like to see, what are you missing from > > > off-the-shelf products? Hi-Definition MIDI support. Jeff

15 years

linux and ambiophonics

by Bearcat M. Sandor

Folks, Is there anyway to set up an ambiophonic (not to be confused with ambiosonic decryption) filtering on a Linux system? I'd prefer 4 channel if possible. I'm aware of brutefir, but i doubt i have the knowledge to set up so complicated a system equation by equation. Are there brutefir scripts out there for it? Anyone know of a ambiophonic ladspa plug in or something? Thanks, Bearcat M Sandor

15 years

Audio booth at OpenSourceExpo 2009 in Karlsruhe, Germany?

by Frank Neumann

Hi, [this is mostly addressed to Linux Audio friends from Germany's Southwest] from November 15th-16th, 2009, the German Software&Support Media Group is hosting the "OpenSourceExpo" in Karlsruhe, Germany. I am not exactly sure yet about its target audience, but it appears like a "small brother" of the LinuxTag with a more local attitude. They offer free booth space, tables and wLan access for free software projects, and I was thinking about applying for a booth there to show off some of the current Linux Audio developments there, as we did when LinuxTag was still in Karlsruhe (2002..2005 or so). That would mean setting up the booth with computer, monitor, mixer, speakers, keyboard etc, and preparing some demo material. However, this task would need 1 or 2 more volunteers to man the booth during that time (please note: This is on a Sunday+Monday!). If anyone is interested, please get in contact with me off-list (or even here). Find more information about the OpenSource Expo here: http://www.pro-linux.de/news/2009/14664.html (german) http://it-republik.de/konferenzen/opensourceexpo09/ Thanks for reading, Frank

15 years

interesting lwn.net coverage of the realtime-preempt mini summit

by Jörn Nettingsmeier

might be of interest: http://lwn.net/SubscriberLink/354690/ae66a6a912e14fca/ (this is a free link to content which would normally be subscribers only for the next week or so - thanks to lwn.net for this service!)

15 years

Re: [LAD] interesting CELT presentation

by Jörn Nettingsmeier

jens, i assume you meant this to go to the list? Jens M Andreasen wrote: > On Sun, 2009-09-27 at 14:53 +0200, Jörn Nettingsmeier wrote: >> those who are following the development of the xiph CELT low latency >> codec might find this presentation interesting: > >>From the overheads: > > - expf() is even slower than exp() > Changes exception handling mode of FPU, even if it's > already set correctly, then changes it "back" > > This is a showstopper for DAZ and friends. Can somebody explain to those > in power, that this is a very unkind thing to do? you could hop on irc.freenode.net, /join #celt, #theora, #speex and/or #xiph and see if derf (the presenter in the link i posted) or jmspeex (jean-marc valin, the remote end in the celt presentation) are around, and discuss it with them directly. alternatively, maybe torben reads this and picks up the thread?

15 years

interesting CELT presentation

by Jörn Nettingsmeier

those who are following the development of the xiph CELT low latency codec might find this presentation interesting: http://www.celt-codec.org/presentations/ torben has implemented CELT support in netjack1, and this video helped me a lot in understanding how it actually works.

15 years

Fwd: [Flac-dev] (Universal) Ambisonic implementation

by Paul Davis

i thought perhaps that our resident ambisonics gurus/interested parties should take a look at this. --p ---------- Forwarded message ---------- From: e deleflie <edeleflie(a)gmail.com> Date: Thu, Sep 17, 2009 at 8:21 PM Subject: [Flac-dev] (Universal) Ambisonic implementation To: flac-dev(a)xiph.org Hi Flac Developers, My name is Etienne Deleflie, I'm the founder of http://www.ambisonia.com and, more recently, http://soundofspace.com. Myself and the community I serve are looking for a lossless file format that can encapsulate ambisonic encoding. To this end a specification has been drafted, and is nearing stability, that describes practical features designed to get the most out of ambisonics. That spec is accessible here: http://ambisonics.googlegroups.com/web/Universal_Ambisonic_0.96.pdf I'm wondering if the FLAC community might be interested in implementing a lossless implementation of that spec. I know there are some current incompatibilities. I'm also aware that there are certain open source processes involved around implementing new features. I'd be happy to get involved with those processes if someone expressed interest at implementing these features. regards, Etienne _______________________________________________ Flac-dev mailing list Flac-dev(a)xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev

15 years

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Linux-audio-dev