Linux-audio-dev

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7440 discussions

[linux-audio-dev] Building qarecord and alsamodularsynth

by Mark Johnathan Greenaway

I'm quite a fan of alsamodularsynth and have been recommending it to friends. The only problem I have with it is that rather than use automake/autoconf for building it has Makefiles that only work without editing under SuSE. Of course, editing the Makefiles to get it to build on other distributions and installing the required development packages is trivial. But I was hoping I could save other people the work of having to do this by writing autoconf/automake scripts. The reason I'm writing this to the list is to ask whether anyone else has already done this and can save me the trouble. I know alsamodularsynth has been packaged for other distributions, and I also know that it's being packaged for Debian (although that's been going on for a very long time, so I assume it's now stalled). One would have thought that had this work already been done, the result would have made it into the tarball on sourceforge. But stranger things have happened. -- Mark

20 years, 6 months

[linux-audio-dev] [ANN] alsamodular-1.7.6

by Matthias Nagorni

Hello, AlsaModularSynth 1.7.6 is available from SourceForge: - Speed optimizations give more voices in polyphic mode :-) - Fixed support for sustain/hold pedal. - Added VC Double Decay (a very cool envelope, suggested by Fons Adriaensen) - Added demos/example_vcdoubledecay.ams (velocity dependent). - Added Quantizer 2 (very simple module). - Fixed VC panning module. - Added pitch-dependend panorama (note that offset and gain are functional in this mode) in VC panning module. See *_pan_*.ams in the instruments folder for the new stereo effects. Try out the different modes of the VC panning (especially "Sort by pitch"), where Pan Gain should be >= 1. VC Double Decay is a double exponential decay. Ratio is the ratio of the two exponentials. Ratio = 0 will give the "normal" steady sustain. Ratio > 0 will make the envelope decay starting from the sustain level, much like in a piano or harpsichord. Citing Fons: "This is the correct model for a vibrating string that is coupled to a resonator or to another string". Have fun ! Matthias -- Dr. Matthias Nagorni SuSE Linux AG Maxfeldstr. 5 phone: +49 911 74053375 D - 90409 Nuernberg fax : +49 911 74053483

20 years, 6 months

[linux-audio-dev] Mx4 updated (again)

by Jens M Andreasen

Hi! I reorganized the Mx4 panel layout slightly to regain some screen realestate. Added a few more waweforms Added intonation envelopes (pitch up/down) for each oscillator. You get it at: http://hem.passagen.se/ja_linux/ cheers // Jens M Andreasen

20 years, 6 months

[linux-audio-dev] [request] Info on the Awe32 schematics

by Juan Linietsky

Does any of you know how to get PROPER docummentation on the Sound Blaster AWE32? and If possible, official datasheets or something.. I think creative's official devkit is gone from the internet... And all I get is incomplete unofficial specs. here and there.. Do you guys also know if people from the opensource creative site would be kind enough to send me that? Thanks in advance! Juan Linietsly

20 years, 6 months

[linux-audio-dev] Linux Audio Experiences

by Dan Harper

Hi all (sorry for the cross-post, but this may not be just a problem with Ardour), Over the last week and the weekend, I took to recording a song in full using Jack, Hydrogen, Ardour and Jamin. I'm not sure if Ardour/LAD is the best place to send this, but some things that I noticed may be across different software, but I thought I'd list a few issues that came up, as well as some delights. I'm not on the Jack or Hydrogen lists, but if this is a Jack or Hydrogen problem, please let me know and I'll post it there. The main problem I had was the sync between Hydrogen and Arodur. I had Hydrogen set as Jack transport slave, and Ardour as master. Both programs were set at 130 bpm, but if I recorded something to a track in Ardour, and then played it back, it sounded fine (in time), but on the screen, the recorded material does not line up with the bar lines in Ardour. The recorded stuff appears a few millimetres before the bar line. Another interesting thing was if I changed the (period?) in Jack from 512 to 1024, the Hydrogen playback was out of time to the Ardour playback, if I switched it back to the original setting it was recorded in, it was fine. I had a few stability problems, but I didn't test them very much, it seemed to be realted to having certain plugins enabled in Ardour. Jack was kicking Ardour out when a particular plugin was being used. I'll have to test that another time to get more detail. Overall though, things went fairly smoothly. The result of the weekend is available at http://danharper.org/songs.php if anyone is interested. It was all done in Linux: HYDROGEN -> ARDOUR ------------------------> JAMIN -> QARECORD Electric Guitar (3 tracks) Vocals (3 tracks) Bass Guitar Vocals Bus Hydrogen Out to an Ardour Bus Master Bus Feel free to give feedback on the song, mix, and mastering. One thing that I loved was Jack. Getting a nice sounding mix and master was so easy because I could change a track level in Hydrogen, and immediately hear the results through Jamin. Same also if I needed to change a plugin parameter or track level in Ardour, the results were immediate. There is no other set of audio tools around that I know of that can do this. A very powerful and useful feature of the design of Jack and its clients. Overall, I should mention that the majority of my time was spent wrestling with LADSPA plugins. Some cased reliability issues in Ardour (see above, more info to come). Some gave me some OK sounds, but I have noticed in the mixdown that the guitar orverdrive doesn't have a nice warm sound. I can't recall the exact plugins I used from memory, but I did find it hard to find plugins that would give me a nice warm sound on guitar tracks. Maybe that is something to improve upon. Dan

20 years, 6 months

[linux-audio-dev] Re: ICMC 2004 submission deadline nearing soon

by Juhana Sadeharju

>The University of Miami is pleased to announce the general call for >submissions to ICMC 2004, to be held 1-6 November in Miami, Florida USA. Hello. Will these papers be freely available in PDF format? E.g., just like DAFX papers are. There are many interesting ICMC papers published during last 20 years, but the papers seems to be only available for a rich man. Could you ICMC people place all older papers freely available to a webpage? I could help by scanning the papers only if somebody would borrow me the proceedings and clear the copyrights. I remember a company is selling the PDF vesions. Anyone here has them and could borrow/share them privately for my personal free software development use? If more people could join the efforts, we could turn all interesting algorithms in to free software. Regards, Juhana

20 years, 6 months

[linux-audio-dev] liblo first release (0.2)

by Steve Harris

http://plugin.org.uk/liblo/ liblo is a simple to use, lightweight OSC C library implementation (http://www.cnmat.berkeley.edu/OpenSoundControl/) chasnges since the pre-release include type coercion and API cleanups. this is a candidate release to get feedback on the API. usage example can be found in src/testlo.c - Steve

20 years, 6 months

[linux-audio-dev] oss2jack 0.13: A kernel-based approach to using OSS applications with jackd

by Kor Nielsen

Hi, I have been quite frustrated with the difficulty of getting multiple OSS applications using my sound hardware simultaneously. The LD_PRELOAD hacks that I have tried leave much to be desired in terms of usability, especially when dealing with arts and mozilla plugins. oss2jack uses Jeremy Elson's useful fusd library (http://www.circlemud.org/~jelson/software/fusd/) to create a userspace character device, which is also a jackd client. It supports mono and stereo streams, with virtually any sample rate thanks to libsamplerate (http://www.mega-nerd.com/SRC/). Only the commonly-used OSS ioctls are currently supported. I have tested oss2jack with the following applications, and they behave fairly well: - mplayer - artsd (and thus all the kde applications) - xmms - Macromedia Flash TODO: - support mmap for quake and other games (requires support in fusd) - detect jackd period for audio sync (currently assumes 64 samples). Should not be too noticeable unless you get above a 256 sample period) - lower CPU usage with artsd by blocking until the minimum fragment size is available (rather than the jackd period) - support for the OSS mixer. Available at: http://fort.xdas.com/~kor/oss2jack/ WARNING: I have not yet tested oss2jack on the 2.4 series kernel. Currently I am using a self-created 2.6 patch for fusd available at the site above. It has been stable for the past 3 weeks on my machine, but no guarantees about stability or safety... :) fusd currently requires that devfs be enabled in the kernel. Any comments are appreciated. Kor

20 years, 6 months

[linux-audio-dev] DRC 2.4.0

by Denis Sbragion

Hello, DRC 2.4.0 has been released and it is available at: http://freshmeat.net/projects/drc/ Changes in this release: The Takuya Ooura and GNU Scientific Library FFT routines have been included in the program. These routines are about 10 times faster than the previous routines, providing about the same accuracy. Best of listening, -- Denis Sbragion InfoTecna Tel: +39 0362 805396, Fax: +39 0362 805404 URL: http://www.infotecna.it

20 years, 6 months

[linux-audio-dev] ICMC 2004: Grace Period for Deadline of Submissions

by tae hong park

Please pardon cross postings. The ICMC 2004 submission deadline for music, video art, and installations which was originally February 27, 2004 has been changed to reflect an additional grace period of two business days. The updated submissions deadline for music, video art, and installations is now March 2, 2004 (Tuesday). Please note that this is the receipt deadline and not postmark deadline. The deadline for papers, posters, roundtables, and demonstrations have not changed and are to be submitted by midnight EST, Friday, March 12, 2004. Forms, submission guidelines, and further details are available at http://www.icmc2004.org. Thank you. Best Regards, Tae Hong Park, ICMC 2004 Publicity Chair

20 years, 7 months

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Linux-audio-dev