Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

7513 discussions

by Niklas Werner

Hi LADers! I released a realtime Music-visualization-program (my master's thesis) on http://sonasound.sf.net. It's probably more of academic use at the moment. Licensed under GPL. Maybe there is some interest. Features are: - Waveform-Display - short-time-spectrum - sonogram - spectrum-generation switchable between lpc and fft - Major kinds of windowing functions choosable - Different kinds of windowing functions are directly comparable via live-switching - Overlap of 50% can be switched on and off without stopping - Buffer-Size and FFT-Size freely adjustable - All Displays work from soundfile while playing or direct live-input from soundcard - Comparison of different spectrum-generation-methods via multiple instances fo SonaSound possible Libraries needed: - fftw (www.fftw.org) - glib >= 1.2 - gtk >= 1.2 - gtkglarea - GL - GLU - portaudio (www.portaudio.com) (Yes, I know, switching to JACK might help) - sndfile >= 1.0 There are many features I would like to add and a few not-so-good-features I'd like to clean up. Have fun* Niklas

22 years, 6 months

[linux-audio-dev] ZynAddSubFX 1.0.9 relased

by Nasca Paul

Hi. I relased ZynAddSubFX 1.0.9 (a very poerfull software synthesizer for Linux). News: - added keylimit to Part - you can use multiple filter stges in order to make very steep filter rolloffs (eg. 48 dB/octave) - ADsynth - added noise mode and you can make fixed frequencies; added the "Punch" parameter - added an external program "Controller" which enables you to use the mouse for MIDI controllers - other improvements and bugfixes See more at http://zynaddsubfx.sourceforge.net Paul. __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/

22 years, 6 months

[linux-audio-dev] amble (was: blockless processing)

by Simon Jenkins

Here's another take on that paste-it-together-out-of-C-code "blockless processing" idea that was discussed a few months back. Its incomplete and experimental, and I'm not sure how much further its worth pursuing it (I'll keep it going for a while longer I think) but its pretty interesting if you like this sort of thing: http://www.sbibble.pwp.blueyonder.co.uk/amble/amble-0.1.1.tar.gz Some (not all) of the demos require libsndfile and its headers. Simon Jenkins (Bristol, UK)

22 years, 6 months

[linux-audio-dev] SuperCollider

by Miha Tomsic

Hello LADies and LADdies! What is new on the SuperCollider front? I've seen there are some new files up on the page and will try to compile them later today. Take care, Miha...

22 years, 6 months

[linux-audio-dev] crusoe ll problems

by jfm3

I'm trying to run a low latency kernel and audio applications on a crusoe processor laptop. Yes, I'm crazy. I have patched a 2.4.20 kernel with the low latency, preemption, and variable hz patches, as well as a modification to the alim15x3 DMA code and an extra entry in the "unusual USB devices" list. I'm running recent CVS checkouts of ALSA from Planet CCRMA. The kernel works well, and the low latency patches really make the system more responsive even under load. However, when I run latencytest0.42/do_test blah blah, the system hangs while playing the sound. It does not even display the xperf window. After a very long time, Control-C stops the process. When I run jack -R (jack 0.55) and freqtweak, freqtweak claims it gets "shut down" by jack the first time I try to start it. The second time I try to start it, it connects to jack and plays for a few seconds, but then audio stops and the system hangs. I need to use sysrq or a power cycle to restart. I can send pretty good beer, the alim15x3 patch, and any other clues to anyone who can help me with this. -- (jfm3 2838 BCBA 93BA 3058 ED95 A42C 37DB 66D1 B43C 9FD0)

22 years, 6 months

[linux-audio-dev] can somebody tell me how to create a .wav file from the sound buffer or gsm?

by leo zhu

I have already got the sound data from sound card into the buffer, and I've also finished it to encode the data to gsm and send to another server. Right now I need to store the sound data to some .wav file in the server. How can I do it, ether from memory buffer or gsm? Are there any API to do it? Thanks. __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/

22 years, 6 months

[linux-audio-dev] [announce]

by ljp

Hello, This is to announce a web forum dedicated to Linux and recording. http://www.recording.org/cgi-local/ubb/ultimatebb.cgi Come and join the fun!

22 years, 6 months

[linux-audio-dev] An outlandish suggestion

by Jonathan Turner

After trying to track down the cause of xruns, I was just wondering if there is a way to run... I dunno, kinda like a meta test for jack and see just why you are xrun'ing? I know people have probably asked this umpteen times, but I was wondering if there was a way to say, automate various tests and keep a load on jack and watch to see if it xruns during any of the tests... Then, after it's done, it gives you a report of what you need to do to tweek your system. Just thinking outloud. Jonathan

22 years, 6 months

[linux-audio-dev] [ANN] JACK Rack 1.4.1

by Bob Ham

Hi all, Some fixes and extra bits for the midi stuff; makes things much more responsive. * icon and .desktop get installed properly * much more graceful handling of jackd shutdowns * midi thread will now try and use SCHED_FIFO. If you run jackd with jackstart (or as root, but you don't want to do that :) then you don't need to do anything to enable this as jackd will give the appropriate rights to jack rack. Bob -- Bob Ham <rah(a)bash.sh>

22 years, 6 months

Re: [linux-audio-dev] Echo Darla/Gina/Layla/... on Linux

by Donald White

> I have a short, simple question: > > Would anyone around here care for ALSA drivers for the Echo > (formerly Event/Echo) line of studio audio interfaces? > > > (We're talking about the original Darla/Gina/Layla, as well as the > new 24 bit interfaces.) > > I have an old 20 bit Layla. I have their C++ driver source, which has > been released under some BSD/MIT style licence. I have kernel hacking > experience. I still have some hard feelings, I think... I have an Echo Darla card that I used to use with CEPro and Win98. I have converted this system over to Linux - but alas there is not ALSA driver for the Darla. :-( I would love to see an ALSA driver for it. __________________________________________________ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com

22 years, 7 months

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Linux-audio-dev