Linux-audio-dev

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2 participants
7534 discussions

[linux-audio-dev] [ANN] bcx2000edit: Editor for BCR2000/BCF2000

by Pieter Palmers

Hi all, I had to familiarize myself with python for work, and I took it as an opportunity to hack on something I've want for some time now. I have these behringer control surfaces, and they are pretty cool, but there is no editor for them on linux. And using the device interface itself is a little cumbersome. So I figured out the sysex format (the patch dump format from "edit + >") and wrote a parser for it in python. I also have a small PyQt inteface (had to learn that too) that allows you to load files, change the values and save them as a new file. Note that this is very basic & non-bugfree software. No checking whatsoever is performed on the sysex files, so if your control surface displays "ERR" when you send a sysex file, you're probably violating the format. The GUI is also limited to changes on existing files only. I put this code online because I think it might be a nice starting point for somebody that want's to write a real editor. It shouln't be that hard (mostly GUI design), and they can use this code to further explore the sysex format. I'm not planning to work on this any further because (1) it serves my needs and (2) I need my time for other projects (most notably freebob). Anyway, you can find the code here: http://freebob.sourceforge.net/old/bcx2000edit.tar.gz Let me know if you start something with it. Greets, Pieter

19 years, 8 months

[linux-audio-dev] Abandoned Csound tracker looking for maintainer

by Lars Luthman

A couple of years ago I started writing a tracker-like GUI program to control Csound, but then I mostly lost interest in Csound and forgot about it. It's a bit like Buzz or Psycle or Octal in that it has a built-in "modular synth" where you connect Csound instruments and a traditional tracker-style pattern editor. It probably doesn't work with recent Csound versions and probably doesn't even build with recent compilers and libraries, and I'm not going to hack any more on it. But if anyone is interested in taking over, the source and other things can be found here: http://keso-project.sourceforge.net/ I'd be happy to hand over the SF project if anyone is interested. -- Lars Luthman - please encrypt any email sent to me if possible PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x04C77E2E Fingerprint: FCA7 C790 19B9 322D EB7A E1B3 4371 4650 04C7 7E2E

19 years, 8 months

[linux-audio-dev] Midi Clock

by krampenschiesser＠freenet.de

Hi I'm currently writing on a loop based midi sequencer. My problem is that I want to get Hardware synced via midi clock. I've read that the midi-clock signal is send 24 times in a quarter note. My sequencer is network based. So there is one time-server which sends a tcp packet with every 256 note. But when I want it to send the midi-clock signal it would be send every 2+2/3 note. Which is not possible. Do you see any solution? -- A sine curve goes off to infinity, or at least the end of the blackboard. -- Prof. Steiner

19 years, 8 months

[linux-audio-dev] precise event timer examples (HPET?)

by Alex

Does anyone have any examples that use HPET (or any other high resolution event) timers? I've built HPET support into my kernel but I cannot figure out how to compile the example given in the documentation : /usr/src/linux-2.6.12/Documentation/hpet.txt I have searched the web and I cannot quite figure out how people use these. I'd like to have micro-second precision and I'm wondering if there is a better way then polling the time of day? Thanks, Alex Norman

19 years, 8 months

[linux-audio-dev] Extreme time-stretching sofware v.0.0.2

by Paul

Hi. >Hi Paul, >How does your software compare to SoundTouch in regard >to "less extreme" time >stretching? This algorithm is made especially for extreme time stretching, for "less extreme" I recomand you to try other programs/algorithms :) Paul >many thanks, >Predrag >> Hi. >> I released today the second version of the >> extreme-time-stretching software. >> It's here: >> http://hypermammut.sourceforge.net/src/paulstretch/ > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

[linux-audio-dev] Extreme time-stretching sofware v.0.0.2

by Paul

Hi. I released today the second version of the extreme-time-stretching software. It's here: http://hypermammut.sourceforge.net/src/paulstretch/ News: - Added a graphical user interface (requires wxWidgets). Now you can control the FFT size (buffer size) too. Also, you can use this program as a very interesting effect if you make FFT size large (even if the stretch parameter is close to 1) - Added Ogg Vorbis support for output (requires ogg vorbis libraries) - Added an "optimize" option to the FFT size to make it power of 2 or 3 for speedups (afaik the fftw library is optimised for these kinds of buffers). The disavantage is that the stretch value is now quantised (if you don't like this, you can disable the optimize checkbox). P.S. For now, there is no available resource checking (I mean if your disk is full or the buffer size is too large, the program will crash) Paul __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

[linux-audio-dev] Extreme time-stretching sofware

by Paul

Hi. I rewrote the experimental time-stretching software (discussed in linux-audio-user mailinglist in "How can I time-stretch the sound like this" topic ) and I put it here: http://hypermammut.sourceforge.net/src/paulstretch/ Please listen to audio examples here (with 20x stretching): http://hypermammut.sourceforge.net/src/paulstretch/example/ The algorithm is simple and it's described into the readme.txt from the archive. There is room for improovements to avoid over-smoothing (I wrote in readme.txt how I think that is possible to do). Please tell me your opinion about it. Paul __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

[linux-audio-dev] [PATCH] aubio 0.3.0 makes abionotes work *) with jack & alsa_seq

by karsten wiese

hi attached patch includes MEMSET fixlet from yesterday. it adds err subtracts pthread_* calls from aubio_midi_direct_output(). those did block here. and aren't anyhow needed in aubio_midi_direct_output(), i think. karsten *) here ___________________________________________________________ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de

19 years, 8 months

[linux-audio-dev] [ANN] aubio 0.3.0

by Paul Brossier

The latest version of aubio, 0.3.0, is now available. aubio is a library for audio labelling. The goal of this project is to provide automatic feature extraction algorithms to other audio software projects. Features include onset detection, beat tracking, and pitch detection. Functions can be used offline in sound editors and software samplers, or online in audio effects and virtual instruments. This release features several changes: * new pitch detection method, yinfft * new beat tracking algorithm (improved from 0.2.0) * new puredata external * enhancements to the onset detection algorithms * improved aubiocut, can now slice at beats and silences * new aubiopitch python program to extract pitch tracks * plotting features for aubiocut and aubiopitch * python interface refactored * updated documentation As usual, the source code can be found at http://aubio.piem.org/ , and Debian packages are available from http://piem.org/debian/ . Feedback most appreciated! Paul Brossier

19 years, 8 months

[linux-audio-dev] compiler problem?

by Gene Heskett

Greetings; Since I can't get any of the common VoIP things to work due to a lack of duplex function in my lappy's chipset, and my inability to convince the person bugtrack assigned to my bugzilla entry that its not my fault, I thought I'd try zfone next. Unforch, the first step, ./configure, fails with 2 stanza's of this: checking linux/byteorder/little_endian.h usability... no checking linux/byteorder/little_endian.h presence... yes configure: WARNING: linux/byteorder/little_endian.h: present but cannot be compiled configure: WARNING: linux/byteorder/little_endian.h: check for missing prerequisite headers? configure: WARNING: linux/byteorder/little_endian.h: see the Autoconf documentation configure: WARNING: linux/byteorder/little_endian.h: section "Present But Cannot Be Compiled" configure: WARNING: linux/byteorder/little_endian.h: proceeding with the preprocessor's result configure: WARNING: linux/byteorder/little_endian.h: in the future, the compiler will take precedence configure: WARNING: ## ------------------------------------------ ## configure: WARNING: ## Report this to the AC_PACKAGE_NAME lists. ## configure: WARNING: ## ------------------------------------------ ## checking for linux/byteorder/little_endian.h... yes checking linux/byteorder/big_endian.h usability... no checking linux/byteorder/big_endian.h presence... yes configure: WARNING: linux/byteorder/big_endian.h: present but cannot be compiled configure: WARNING: linux/byteorder/big_endian.h: check for missing prerequisite headers? configure: WARNING: linux/byteorder/big_endian.h: see the Autoconf documentation configure: WARNING: linux/byteorder/big_endian.h: section "Present But Cannot Be Compiled" configure: WARNING: linux/byteorder/big_endian.h: proceeding with the preprocessor's result configure: WARNING: linux/byteorder/big_endian.h: in the future, the compiler will take precedence configure: WARNING: ## ------------------------------------------ ## configure: WARNING: ## Report this to the AC_PACKAGE_NAME lists. ## configure: WARNING: ## ------------------------------------------ ## checking for linux/byteorder/big_endian.h... yes I've googled in vain for a solution as the make also fails later: gcc -DHAVE_CONFIG_H -I. -I. -I../config -I../include -I../bnlib/ -I../srtp/include -I../srtp/crypto/include -Wno-unused -g -O2 -c -o base32.o `test -f './base32.c' || echo './'`./base32.c In file included from ../srtp/crypto/include/datatypes.h:60, from ../srtp/crypto/include/err.h:49, from ../srtp/crypto/include/rand_source.h:49, from ../srtp/crypto/include/crypto_kernel.h:49, from ../srtp/include/srtp.h:53, from ../include/zrtp_protocol.h:13, from ../include/zrtp_types.h:184, from ./base32.c:7: /usr/include/netinet/in.h:354: error: expected declaration specifiers or ‘...’ before ‘(’ token /usr/include/netinet/in.h:354: error: expected ‘)’ before ‘?’ token /usr/include/netinet/in.h:355: error: expected declaration specifiers or ‘...’ before ‘(’ token /usr/include/netinet/in.h:355: error: expected ‘)’ before ‘?’ token /usr/include/netinet/in.h:357: error: expected declaration specifiers or ‘...’ before ‘(’ token /usr/include/netinet/in.h:357: error: expected ‘)’ before ‘?’ token /usr/include/netinet/in.h:359: error: expected declaration specifiers or ‘...’ before ‘(’ token /usr/include/netinet/in.h:359: error: expected ‘)’ before ‘?’ token ./base32.c: In function ‘b2a’: ./base32.c:59: warning: comparison of distinct pointer types lacks a cast make[1]: *** [base32.o] Error 1 make[1]: Leaving directory `/usr/src/Zfone/libzrtp-0.2.0/src' make: *** [all-recursive] Error 1 This is after outputting dozens of warnings about 'too many arguments for function' Phil Zimmerman's code is usually of quite high quality... -- Cheers, Gene

19 years, 8 months

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Linux-audio-dev