Linux-audio-dev

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7513 discussions

by Mr.Freeze

Hi, Quirky question: is it possible to run PureData (or another <place_your_name_here> *modular*) on a DSP (or, still, another <place_your_name_here> microcontroller) under a port of Linux? I was thinking of building an hardware expander that would share the patches of its software counterpart, just by dumping them on the device... Does "m68k" refer to a family of Motorola DSPs? http://www.linux-m68k.org >From the Alpha (64 bits) to the ARM (32 bits), between the MIPS (32 bits) or MIPS-64 (64 bits), short-cutting to the PA-RISC (32 bits), U-turning by the SPARC (32 bits) and SPARC64 (64 bits versions)... what applications are this bugs aimed at? You'd want to think: "how could he manage to do that provided the questions he asks?" ;-) Cheers, Christian Frisson

21 years, 5 months

[linux-audio-dev] Re: PdDSP?

by Mr.Freeze

Re-, The prime objective of my "PureBabbling" was to introduce the names of microprocessors/controllers whose specifications or applications I don't even know of, hence the question! Neat word, though ,-) My only friends are TMS320C31 and 16F873... So it's not worth dreaming of a DSP-powered PureData synth... Let's turn the problem inside-out: I could still create a PureData module that could convert its native patches to the DSP power C/C+ synth! ++ Mr°Freeze

21 years, 5 months

[linux-audio-dev] Pitchshift/Timestretch project..

by Frank NEUMANN

Hi all, I was made aware of a new project yesterday, to be found at http://clearscale.org. The idea is to produce a commercial-grade and open- source pitchshifting/timestretching library. libSoundtouch might be nice as it is, but if you really stress it, the artifacts come in quite quickly (in my opinion). I believe in this field Linux software is still a good deal away from Win*/Mac software, so this project sounds very interesting to fill a gap. When you visit the web site, you'll notice that the author is seeking some kind of financial reward for his work (through PayPal). This might sound quite unusual at first, but I think it is justified. The important fact to know here is that the maintainer, Stephan M. Bernsee (formerly known as Stephan M. Sprenger) is (to my knowledge) the mastermind behind the German company ProSoniq, producers of e.g. the OrangeVocoder and TimeFactory. These products always get great reviews in german (and probably also international) keyboard magazines. He _really knows_ what to do; he has proven that in the past. He also developed some part of the Hartmann Neuron (don't ask me for details - I don't have any), and his webpage (www.dspdimension.com) contains very useful information that is even used at some german universities for lectures about signal processing. In other words: If he really goes for this, the results might be fantastic. With a bit of luck, Stephan will show up in Karlsruhe at our Linux Audio Conference - maybe he can explain some more thoughts there. Anyway, I believe this project deserves to be sponsored somehow. No, I am not affiliated..blabla..just my personal opinion..yadayada :-). I simply believe this is hot information. Greetings, Frank

21 years, 5 months

[linux-audio-dev] Re: Lionstracs / Linux Audio at Musikmesse report

by Kjetil Svalastog Matheussen

>Hi, just back from Musikmesse in Frankfurt. > >FYI: > >Videos of Mediastation X-76 and Lionstracs - Thomas Organ Musicstation >VKX-76 >(basically the mediastation with 2 manuals, pedals, speakers in a wooden >case) > >on the right side of the page, scroll down to VIDEO OF MUSIKMESSE, >you will find 4 videos >(under Linux you can play them with xine or mplayer if you have the >win32 codecs installed) > >http://www.lionstracs.com/index.php?module=Static_Docs&func=view&f=/demos.h… > >read these two links too: >http://www.synthzone.com/ubbs/Forum37/HTML/008798.html >http://www.synthzone.com/ubbs/Forum37/HTML/008794.html > >(in the organ videos Bernd Wurzenrainer plays the NI B4 under VST server >with a jazz base (.wav) :-) ) Of pure interest, which jack settings did you use? I'm thinking of the frame/period sizes? --

21 years, 5 months

[linux-audio-dev] Visual 3D mixing interface

by Jorma R

Hi, I don't know whether this is old news but interesting anyway: a mixing interface in which you handle the pan and gain settings by placing "balls" that represent the instruments (or tracks from a recorder) in a 3D space. Here is the site with samples: http://www.globerecording.com/book/mixes/index.html I think this is interesting as you always do that when mixing - usually just inside your hear. Having something like this for Linux would be great. Either as a stand-alone Jack aware mixing interface or as an alternate mixing UI for Ardour for example. In the first version you'd just assign instrument names for incoming Jack ports or combinations of them and place them in the 3D space. The output would be summed as a stereo (or 5.1 or...) stream into the outputs of this application. The second version would just be an alternate UI for adjusting the gain, pan and plugin automation parameters in Ardour. When placing instruments in the 3D space you'd probably need to do some EQ, multi-band compression and phase changes. Anyway - this should be rather trivial to do given that there are good LADSPA plugins for the job already. Has anyone thought of or planned creating something like this? I thought I could do it myself - I just need to learn programming in general (starting from zero) and audio + 3D in particular. :) Br, -Jorma __ Sano ei kuukausimaksuille. Hanki Suomen ainoa aidosti kuukausimaksuton GSM-liittymä osoitteesta http://www.saunalahti.fi

21 years, 5 months

[linux-audio-dev] RE: cmpci 6.77 released (kernel 2.4/2.6 files patch)

by C.L. Tien - 田承禮

Hi, The kernel 2.4/2.6 kernel config files need the patch file for the new driver. Please check them in the attached files. CMI8738 contains parameter description in detail. Sincerely, ChenLi Tien -----Original Message----- From: C.L. Tien - 田承禮 Sent: 2004/4/6 [星期二] 下午 10:05 To: linux-kernel(a)vger.kernel.org; linux-audio-dev(a)music.columbia.edu Cc: 收信群組-網頁 Support 信箱 Subject: ANN: cmpci 6.77 released Hi, I made changes based on the previous released (6.67), now the version is 6.77. Major changes are described as follows: 1. I found that the legacy devices I/O ranges cannot be accessed on platforms other than X86, such as PowerPC and IA-64 systems. Now I only leave legacy devices enable selection on kernel config, user still need to set proper value for mpuio, fmio and joystick to use them, I think this matches other driver style. I also check the legacy device existance before enabling them, as there are chipset (i.e., Intel ICHx) support mpu401. 2. Fix the DUAL_DAC 4-channel PCM mode, now the 2 DACs play in synchronized way. Only user use 37 or earlier chip will feel difference. 3. Add AFMT_S16_BE format support so it can support more PowerPC platforms applications, too many APs insisted on using this format, although I report AFMT_S16_LE in GETFMT ioctl. 4. Fix AFMT_AC3 data sent on big-endian system, now MPlayer and Xine can send AC3 audio data correctly on Mac. 5. Fix CD/Line-in/AUX-in single channel mute bug. The There are 3 patch files, which should be applied to the previous version (6.67) and the change-6.67-6.77 shows version change in detail. Enjoy! Sincerely, ChenLi Tien

21 years, 5 months

[linux-audio-dev] ANN: cmpci 6.77 released

by C.L. Tien - 田承禮

Hi, I made changes based on the previous released (6.67), now the version is 6.77. Major changes are described as follows: 1. I found that the legacy devices I/O ranges cannot be accessed on platforms other than X86, such as PowerPC and IA-64 systems. Now I only leave legacy devices enable selection on kernel config, user still need to set proper value for mpuio, fmio and joystick to use them, I think this matches other driver style. I also check the legacy device existance before enabling them, as there are chipset (i.e., Intel ICHx) support mpu401. 2. Fix the DUAL_DAC 4-channel PCM mode, now the 2 DACs play in synchronized way. Only user use 37 or earlier chip will feel difference. 3. Add AFMT_S16_BE format support so it can support more PowerPC platforms applications, too many APs insisted on using this format, although I report AFMT_S16_LE in GETFMT ioctl. 4. Fix AFMT_AC3 data sent on big-endian system, now MPlayer and Xine can send AC3 audio data correctly on Mac. 5. Fix CD/Line-in/AUX-in single channel mute bug. The There are 3 patch files, which should be applied to the previous version (6.67) and the change-6.67-6.77 shows version change in detail. Enjoy! Sincerely, ChenLi Tien

21 years, 5 months

[linux-audio-dev] Visual 3D mixing interface

by Jorma R

21 years, 5 months

Re: [linux-audio-dev] Visual 3D mixing interface

by Jorma R

> A bit like this you mean: > http://www.ecs.soton.ac.uk/~njl98r/code/ladspa/glmix.png > http://www.ecs.soton.ac.uk/~njl98r/code/ladspa/ > (its actually a jack program, ignore the URL). > > I'm CCing the author 'cos he's nearly as bad as Conrad for actually > announcing his software ;) > > - Steve Whoa! I definately need to have a look a that... Thanks. Sorry for triple posting the initial message. -Jorma __ Sano ei kuukausimaksuille. Hanki Suomen ainoa aidosti kuukausimaksuton GSM-liittymä osoitteesta http://www.saunalahti.fi

21 years, 5 months

[linux-audio-dev] Visual 3D mixing interface

by Jorma R

21 years, 5 months

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Linux-audio-dev