Linux-audio-dev January 2005

linux-audio-dev@lists.linuxaudio.org

89 participants
86 discussions

[linux-audio-dev] [PATCH]: ALSA 1.07 support for Novation X-Station/ReMOTE25/Speedio

by Charles C. Bennett, Jr.

Hi All - Thanks to the assistance of Nick Dowell at Focusrite I have working MIDI over USB for Novation ReMOTE 25 Audio AKA X-Station. The attached patch builds and runs cleanly using the latest Fedora Core 3 update kernel (2.6.10 #741). I don't have the MIDI only device or the Speedio to test with but if they operate as Nick describes these should also do MIDI over USB with my patch. I don't think I broke anything but if anybody can check out this patch with other devices, particularly Roland and MIDIMAN devices I'd be much obliged. Thanks, ccb

19 years, 3 months

[linux-audio-dev] MuSE or Glame Bandpass Analog Filter

by Dubphil

Hello all, After having struggle a lot in order to make ecasound and ardour working on my Gentoo (Christopher is it working well with your's ?) I have decided to use another strategy to setup my Dub Soundsystem. I have choosen : always TerminatorX (Tx) to play the tracks and MuSE 0.7.1 to do the rest. The problem is that MuSE does a strange thing. Let me explain : I have 2 stereo tracks track 1 connected to Tx without effect track 2 connected to Tx with the Glame Bandpass Analog Filter So, if I activate the plugin of the track 2 the track 1 looks mono and I can hear that the effect is also acting on it. is this a bug in MuSE or it is the Glame Bandpass Analog Filter to claim the fault ? Best regards Philippe PS : it would be nice if the interface window of a plugin closes when we remove the plugin from the track :)

19 years, 3 months

[linux-audio-dev] linuxsampler cvs-snapshot from 13.06.2004 controlling it

by Julien Claassen

Hi! I tried to use the cvs snapshot from the 13th of June last year to do some work. But it wouldn't accept commands. I did: $ linuxsampler It told me that everything was well. Then I connected to it with telnet: $ telnet localhost 8888 That succeeded, too. Then I tried just writing a comment: # this is a comment Still worked, but when I tried to put any real command to it, it just said: ERR:0:Unknown command. Or something like it. I took the commands from the draft. But the sampler even wouldn't accept "quit". I tried quit, Quit and QUIT and the same with single and double quotes. Any fix for this? I need to use the text-mode (telnet way). Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net - the Linux TextBased Studio guide

19 years, 3 months

[linux-audio-dev] [ANN] Snd-ls V0.9.2.0

by Kjetil Svalastog Matheussen

http://www.notam02.no/arkiv/src/snd/ Snd-ls v0.9.2.0 --------------- Released 21.1.2005 Contains -------- Snd v7.10 from 20.1.2005 About ----- Snd-ls is a distribution of the sound editor Snd, made by Bill Schottstaedt. Its target is people that don't know scheme very well, and don't want to spend too much time configuring Snd. It can also serve as a quick introduction to Snd and how it can be set up. Install ------- 1. Edit the file config.scm, for configuration settings. 2. Run ./build 3. Run ./install as root. It is not necessarry to uninstall any previously installed versions of Snd. Snd-ls should not interfere with already installed versions. After installing, the name of the executable is "snd-ls". To uninstall, run ./uninstall Required packages ----------------- guile gtk-2 jack libsamplerate ladspa liblrdf fftw3 libxt-dev (guile-devel, gtk-2-devel, liblrdf-devel and gcc is also needed at runtime) Changes ------- 0.9.2-beta1 -> 0.9.2.0 -Updated SND to v7.10 from 20.1.2005. Many important changes. 0.9.1.5 -> 0.9.2-beta1 -Updated SND to v7.8 from 12.8.2004. Many important changes. 0.9.1.4 -> 0.9.1.5: -Made the apply-button always apply to selection if there is a selection. 0.9.1.3 -> 0.9.1.4: -Removed some options from the edit-menu that interfered with the way snd_conffile works. 0.9.1.2 -> 0.9.1.3: -Made the insert-option in the edit-menu insert monofiles into the currently selected channel. -Added libxt-dev to the list of required packages. (Thanks to robin) -Made mono-files play in both left and right channel when using Jack. 0.9.1.1 -> 0.9.1.2: -Short fix for the nodeline-class. 0.9.1 -> 0.9.1.1: -Fixed Append File edit-menu option. -Workaround for trouble with ladspa default settings. 0.9.0 -> 0.9.1: -Official announced. -Upgraded SND from 20.7.2004 to 2.8.2004 -Huge amount of testing at Notam by 14 unexperienced guinea pigs for a whole week; many bugs fixed. Links ----- Snd: http://ccrma.stanford.edu/software/snd/ Guile: http://www.gnu.org/software/guile/guile.html Credits ------- Snd is made by Bill Schottstaedt. This small package is put together by Kjetil Matheussen / Notam, with consulting help from Bill Schottstaedt. --

19 years, 3 months

[linux-audio-dev] Re: Plans/Roadmaps for 2005?

by Juhana Sadeharju

>From: Mario Lang <mlang(a)delysid.org> > >[1] http://delysid.org/tuneit.html First, I have one more project: -Overview file format for libsndfile; e.g., (min,max,rms) per block; the overview file would be used, e.g., for fast waveform drawing Then, thanks. I will check the pitch detectors you have. I have collected papers on pitch detectors if you want take a look at them -- I will check too, of course. Do you know how your code could be changed to the formant detector? It must be a harder project. Two first formants should be tracked. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

19 years, 3 months

[linux-audio-dev] strange error from linuxsampler

by Fons Adriaensen

Hello, qsampler gives me this strange error: Loading gig file 'NON_MODAL '/home/fons/FreePiano.gig''...gig::Engine error: Failed to load instrument, cause: Can't open "NON_MODAL '/home/fons/FreePiano.gig'" I've no idea where the 'NON_MODAL' thing is coming from, or how to get rid of it... -- FA

19 years, 3 months

[linux-audio-dev] EEL web site

by David Olofson

...with some info: http://eel.olofson.net/ >From the index page: "The Extensible Embeddable Language EEL is a scripting and programming language, designed specifically for hard real time applications. The primary target areas of application are control engineering and audio synthesis, but EEL should also be suitable for game scripting and for adding scripting capabilities to real time multimedia applications." //David Olofson - Programmer, Composer, Open Source Advocate .- Audiality -----------------------------------------------. | Free/Open Source audio engine for games and multimedia. | | MIDI, modular synthesis, real time effects, scripting,... | `-----------------------------------> http://audiality.org -' --- http://olofson.net --- http://www.reologica.se ---

19 years, 3 months

[linux-audio-dev] mp3 info Q

by kurmisk

Hi folks I wanna collect some info of all my *.mp3 such as lenght (sec), samplerate(hz) , nubmer of channels (m/s), birtrate(VBR/hz) and maybe something else. Which #include <hdr.h> , typedef , and functions() i need use ? Recursive dir search i have yet. Any ideas ? Tnx in advance Alf ------

19 years, 3 months

[linux-audio-dev] Re: linux-audio-dev Digest, Vol 16, Issue 17

by Kjetil Svalastog Matheussen

Dave Robillard: > Anyone know of any other alternatives? Have you looked at rscheme? It has a realtime garbage collector and does both interpreting and compiling. http://www.rscheme.org Thereses not much documentatyion, but the source is easy to read. --

19 years, 3 months

Re: [linux-audio-dev] [semi-OT] EEL 0.1.0

by Kjetil Svalastog Matheussen

Steve Harris: > Yep, for performance coding I would say SC is the best bet, I've seen a > live coding performance, and it was very impressive. Almost enough to make > me want to use emacs. Almost ;) > > I was thinking of a live C compiler for prototyping and testing > purposes. > What a coincidence! I'm just working on something like that. This is what you are looking for: http://tinyurl.com/5bekn The url above is pointing to the cvs-entry of the file eval-c.scm in the snd sound editor. Eval-c is c-code using s-expressions (which I know you hate, allthough I don't know why, perhaps you are crazy...), compiled, linked and run on the fly. Place the cursor above an eval-c block in emacs, press ctrl+alt+x, and there it flies. (I have also added support for classes and a lot more, but those additions hasn't been made public yet.) By the way, this is the way lrdf-support is handled in snd. Quoting: " EVAL-C ------ eval-c takes as arguments lisp- and C-like blocks, generates c-code from it, and runs it. Some reasons to use eval-c: * Easy integration of c-code from within lisp. Mix C and Lisp in the same source without making it look strange. (hopefully) * Use lisp-macros to generate c-code. (There is a special macro function called "define-c-macro" that works with eval-c) * Generate/compile/link/run c-code on the fly. * Some people think prefix notation is nice. * Speed. C is faster than guile. * Hides guile-semantic to access C-code from guile. Less need to read the guile manual. * Global functions does not need to be defined at the top-level. (that is a good thing, right?) Examples. -------- The simplest fibonacci function: (define-c <int> (fib ((<int> n)) (if (< n 2) (return n) (return (+ (fib (- n 1)) (fib (- n 2))))))) The define-c macro will produce the following code: (eval-c "" (public (<int> fib (lambda ((<int> n)) (if (< n 2) (return n) (return (+ (fib (- n 1)) (fib (- n 2))))))))) The "public" macro will change the code so that it looks something like this: (eval-c "" (<int> fib (lambda ((<int> n)) (if (< n 2) (return n) (return (+ (fib (- n 1)) (fib (- n 2))))))) (<static-SCM> fib_eval_c_helper (lambda ((<SCM> n)) (return (MAKE_INTEGER (fib (GET_INTEGER n)))))) (run-now (scm_c_define_gsubr "fib" 1 0 0 fib_eval_c_helper))) And after running the "lambda", "if" and "run-now" macros, eval-c will produce and run the following c-code: int fib (int n){ if ((n < 2)) return (n); else return ((fib ((n - 1)) + fib ((n - 2)))); } static SCM fib_eval_c_helper (SCM n){ return (MAKE_INTEGER (fib (GET_INTEGER (n)))); } static void run_now_1 (){ scm_c_define_gsubr ("fib", 1, 0, 0, fib_eval_c_helper); } The first function is the fibonacci generator, and the second function is the guile-wrapper. (GET_INTEGER and MAKE_INTEGER are just simple C macros.) "run_now"-functions are run once when the file is loaded. >From guile you now have a function called "fib" which takes one argument. Hello world looks like this: (eval-c "" (run-now (printf (string "Hello world!\\n")))) First argument to eval-c is a string with compiling/linking options. Usually just "", but can be "-lsnd" or something if needed. " --

19 years, 3 months

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Linux-audio-dev January 2005