Linux-audio-dev March 2003

linux-audio-dev@lists.linuxaudio.org

88 participants
102 discussions

by torbenh＠gmx.de

hi... this is my first time online since lad Conference. so i would like to announce galan-0.2.14 (as seen on lad Conference) galan is another modular synthesizer. It supports sub patches like pd and jmax. But has separation of mesh and Controls. It also supports OpenGL Scene Graphs which can be controlled by your audio data, the sequencers etc... homepage is at http://galan.sourceforge.net find the download links from there... -- torben Hohn http://galan.sourceforge.net -- The graphical Audio language

22 years

[linux-audio-dev] Advertising Linux Audio

by Patrick Shirkey

This is a brief rundown of the results from the advertising campaign I launched last October. I have paused it for now but will resume it again in 6 months time for the Xmas season. I placed four adgroups, with a total of 2390 clicks, 222573 page impressions, costing $450.24 over 6 months. Full Summary below: Report for Oct 20, 2002 to Mar 26, 2003 Campaign Summary All Campaigns Clicks Impr. CTR Avg. CPC (USD) Cost (USD) Avg. Pos Campaign #1 991 106549 0.9% $0.26 $255.95 2.9 Campaign #2 462 80096 0.5% $0.12 $54.18 1.3 Campaign #3 930 33583 2.7% $0.15 $139.33 1.2 Campaign #4 7 2345 0.2% $0.11 $0.78 1.5 Overall 2390 222573 1.0% $0.19 $450.24 2.1 *Reporting is not real-time. Clicks and impressions received in the last 12 hours may not be included here. Campaign #1 - USD $1.50 daily budget limit View/Edit Ad Groups Clicks Impr. CTR Avg. CPC (USD) Max. CPC (USD) Cost (USD) Avg. Pos music recording - Paused 991 106549 0.9% $0.26 $0.50 $255.95 2.9 Overall 991 106549 0.9% $0.26 - $255.95 2.9 Campaign #2 - USD $1.00 daily budget limit View/Edit Ad Groups Clicks Impr. CTR Avg. CPC (USD) Max. CPC (USD) Cost (USD) Avg. Pos linux sound - Paused 462 80096 0.5% $0.12 $0.50 $54.18 1.3 Overall 462 80096 0.5% $0.12 - $54.18 1.3 Campaign #3 - USD $1.00 daily budget limit View/Edit Ad Groups Clicks Impr. CTR Avg. CPC (USD) Max. CPC (USD) Cost (USD) Avg. Pos Linux music - Paused 930 33583 2.7% $0.15 $0.50 $139.33 1.2 Overall 930 33583 2.7% $0.15 - $139.33 1.2 Campaign #4 - USD $1.00 daily budget limit View/Edit Ad Groups Clicks Impr. CTR Avg. CPC (USD) Max. CPC (USD) Cost (USD) Avg. Pos sound - Paused 7 2345 0.2% $0.11 $0.50 $0.78 1.5 Overall 7 2345 0.2% $0.11 - $0.78 1.5 -- Patrick Shirkey - Boost Hardware Ltd. Http://www.boosthardware.com Http://www.djcj.org - The Linux Audio Users guide ======================================== Being on stage with the band in front of crowds shouting, "Get off! No! We want normal music!", I think that was more like acting than anything I've ever done. Goldie, 8 Nov, 2002 The Scotsman

22 years

[linux-audio-dev] XAP again - channels, etc.

by Tim Hockin

I fear we've all been very busy. I know I have. I have not had time to devote to XAP, though I have certainly not lost interest. So today I start looking at my evolving spec doc again. The biggest chunk of undecidedness lies in the area of Channels. We never really resolved the Bays/Channels etc debate. We just put it off. Here it is. I'd like to propose the following - it is simple and flexible. Not too confusing. Plugins define 'Modules'. Every plugin has a master Module, and 0-n extra Modules. The host can instantiate Modules as needed. A Module is analogous to a MIDI Channel in a synth (maybe Module is the wrong word). It is analogous to a slot in a mixer. struct XAP_descriptor { ... /* master module descriptor */ XAP_module master; /* other channel descriptors */ int n_modules; XAP_module *modules; /* * Instantiate a module, return a plugin-unique * id/index for it - it's 'Channel'. */ int (*add_module)(void *plugin, int module); /* * Remove a module. */ int (*del_module)(void *plugin, int index); }; struct XAP_module { char *label; char *name; uint32_t flags; /* how many instances of this module are allowed? */ int count_max; /* per-module controls and I/O */ int n_controls; XAP_control **controls; int n_ports; XAP_port **ports; };

22 years

[linux-audio-dev] non-standard uses of MIDI reserved system opcodes

by John Lazzaro

Hi everyone, There are 2 MIDI System Common opcodes (0xF4 and 0xF5) and 2 MIDI System Realtime opcodes (0xF9 and 0xFD) that the official MIDI standard reserves for future use. I'm currently collecting examples of non-standard uses of these opcodes in hardware and software (on MIDI 1.0 DIN cables and in other hardware and software contexts). Examples I've collected so far are: -- 0xF9 as "MIDI Tick" -- 0xF5 for both "MIDI endpoint" and "virtual cable" selection I'm doing this as part of the process of finishing: http://www.cs.berkeley.edu/~lazzaro/sa/pubs/txt/current-mwpp.txt http://www.cs.berkeley.edu/~lazzaro/sa/pubs/txt/current-guide.txt It uses the semantics of the commands as part of its resiliency scheme, and so knowledge of non-standard uses of the reserved commands is needed to help craft resiliency logic for the opcodes. Probably best to send the info directly to lazzaro(a)cs.berkeley.edu, the topic is too mundane for the list ... thanks in advance! ------------------------------------------------------------------------- John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley lazzaro [at] cs [dot] berkeley [dot] edu www.cs.berkeley.edu/~lazzaro -------------------------------------------------------------------------

22 years

[linux-audio-dev] [ANN] creox 0.2.0

by Jozef Kosoru

Hi all, I would like to announce creox 0.2.0 - the realtime sound processor for KDE http://www.uid0.sk/zyzstar/?creox As Creox is a JACK application, the output sound can be routed to the other JACK-aware applications, and the audio input can be taken as the output from the other JACK client. -- jozef kosoru

22 years

[linux-audio-dev] mutex in process callback?

by Lukas Degener

Hi LADs, here is a problem that maybe very common with many rt audio apps, so hopefully there is a "standard" solution for it? assume jack process callback reads audio data from a buffer, while another thread might alter the contents of this buffer. In my particular scenario, i will actualy use doublebuffering. So the only operation that needs to be "mutexed" is the actual swapping of front and back buffers (well, pointers, of course, not the contents) Now my problem is: How can i make sure that swapping does not accure during process (playback) callback? I could use a mutex, but this might also block the playback thread. (if swapping is in process when the jack callback is invoked) On the other hand, swapping pointers shouldn't take that long, so maybe this would not be a problem? Or would it make sense to try and "foresee" such a situation and avoid it by delaying the swapping? Any clever suggestions on this? Regards, Lukas

22 years

[linux-audio-dev] FFTW3 (beta)

by Steve Harris

http://www.fftw.org/ Just a headsup for all the people who link against it. Hopefully they've normailised the build system now... Looks pretty good, now includes SIMD optimisations. - Steve

22 years

[linux-audio-dev] Alternitif Bitkisel kanser ilaci Carctol Alternative Cancer Healing

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22 years

[linux-audio-dev] [ANN] Hydrogen 0.7.6

by Comix

Hi all, the 0.7.6 version of Hydrogen Gnu/Linux drum machine is available at http://hydrogen.sf.net Features: * Graphical user interface based on QT 3, * Sample based audio engine, * Oss Audio driver, * Jack Audio driver, * Export to disk audio driver, * Alsa Midi input, * Ability to import/export xml-based song file, * 64 ticks per pattern, * 16 voices with volume, mute, solo, pan capabilities, * Import of samples in wave, au, aiff format. * Humanize and swing functions Changes: * Bug fix in note velocity editor * Improved pattern editor * Humanize function * Swing function * New child frame interface * Stereo peak visualization in mixer * New song editor Happy drumming! ;) -- Alessandro <Comix> Cominu http://hydrogen.sf.net e-mail: comix(a)despammed.com Icq: 116354077 Linux User # 203765 [...Codito Ergo Sum...]

22 years

[linux-audio-dev] Update -- 24-bit/192 KHz Portable DAT Replacement

by moskowit＠panix.com

We've posted an update about PDAudio (our new 24/192 portable digital audio recorder): http://www.core-sound.com/HighResRecorderNews.html Thanks to all for the high level of interest! -- Len Moskowitz PDAudio, Binaural Mics, Cables, DPA, M-Audio Core Sound http://www.stealthmicrophones.com Teaneck, New Jersey USA http://www.core-sound.com moskowit(a)core-sound.com Tel: 201-801-0812, FAX: 201-801-0912

22 years

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Linux-audio-dev March 2003