Linux-audio-user January 2013

linux-audio-user@lists.linuxaudio.org

140 participants
130 discussions

[LAU] Console based software EQ for jack

by Stefan Stefanov

Hello My music server is headless (no graphical environment). I'm using mpd + JACK to play music. Now I need some software equalizer (JACK based of course), but running in daemon mode. JackEQ is the application I currently installed. It could be run in daemon mode like that: $ jackeq -d But I don't understand how to use it further more: - how to properly connect it (to mpd in my case) ? - how to adjust bass and treble ? Can you suggests any other EQ software based on your practice?

13 years, 1 month

[LAU] Subject: Re: L_ProAudio: A Linux Proaudio FrameWork with improved Wine/kernel(rt) support [Jordan]

by jordan

> From: John Murphy > > Just an update to say: > >> uname -a > Linux z68 3.6.11-rt25-1-l-pa #3 SMP PREEMPT RT Wed Jan 16 13:10:26 GMT 2013 x86_64 x86_64 x86_64 GNU/Linux that's nice to to see , John ;) ..and i am glad you got it figured out (with some help, to boot!). How is everything working for you, so far? > and: > >> cat /proc/driver/nvidia/version > NVRM version: NVIDIA UNIX x86_64 Kernel Module 310.14 Tue Oct 9 11:52:41 PDT 2012 > GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) this is me (updated to latest beta driver yesterday). cat /proc/driver/nvidia/version NVRM version: NVIDIA UNIX x86_64 Kernel Module 313.18 Wed Jan 9 17:02:09 PST 2013 GCC version: gcc version 4.7.2 (GCC) > (The wheel patch isn't working right, but the gentleman who helped > me (did all the work) could be persuaded to investigate, perhaps.) if you like, you can look into that and drop me a line (personally, if you like - my email is written all over the place ;) > Thanks again. > > PS: The script install method I mentioned in my previous message > didn't work. I used the official usually always works method. whatever works :) I'm glad you got everything working. an an update, tonight i am going to be adding more information about setting up wow64 for use with L_Pa-Wine. It takes awhile to do, and winetricks can be annoying at times - but I've migrated all of my win32 apps/plugins into wow64 and it's working quite well :) ~ the only bump i ran into was with an app that i was testing that wouldn't run in wow64, but it doesn't matter because it doesn't work properly in wine, anyway... Thanks for your interest in everything - and do keep me in the loop ;) Jordan

13 years, 1 month

Re: [LAU] Cabinet II

by Tim Goetze

[André Garnier Coutinho] >According to the webpage doc, the minimum value of cabinetII's model is >zero, > >but the list of models is from 1 to 7. > >Is there any reason for that? 'model' 0 is an identity 'filter' -- the signal isn't actually filtered. At that time, it seemed reasonable not to give it a name, since it's not a model. :) Cheers, Tim

13 years, 1 month

Re: [LAU] Library for simple audio programming

by Kjetil Matheussen

Bill Schottstaedt: > (call-with-output-file "test.ascii" (lambda (p) > (let ((r (make-readin "filename.wav"))) > (do () ((= (mus-location r) (mus-length r))) > (format p "~A~%" (r)))))) Can't get my head around 'do'. Prefer this: (call-with-output-file "test.ascii" (lambda (p) (let ((r (make-readin "filename.wav"))) (while (< (mus-location r) (mus-length r)) (format p "~A~%" (r))))))

13 years, 1 month

Re: [LAU] Library for simple audio programming

by Bill Schottstaedt

Here's my entry in this contest: (call-with-output-file "test.ascii" (lambda (p) (let ((r (make-readin "filename.wav"))) (do () ((= (mus-location r) (mus-length r))) (format p "~A~%" (r)))))) In the Scheme community this code would be considered heavily commented.

13 years, 1 month

[LAU] Detuned note stacking with LADSPA effect?

by Julien Claassen

Hello everyone! Is there a ladspa effect, that simulates stacking of notes with a detune. Like the feature most modern virtual analogue synths have to produce things like supersaw. I don't need stereo spreading, for that I'd turn to a chorus. I've searched my local plugins for "detune", but only found choruses. Yes, I know, I could go overboard and use the rubberband or other pitchshifters and double/tripple... my track, but I'd rather not. Warm regards Julien ---------------------------------------- http://juliencoder.de/nama/music.html

13 years, 1 month

[LAU] [ann] CAPS 0.9.5

by Tim Goetze

This release of CAPS, likely to be the last for some time unless major bugs surface, brings * performance and sound improvements for AmpVTS, * selection of peak or RMS measurement in Compress, * 4x128 saturating mode for Compress, * 2x,4x and 8x oversampling for AutoFilter, and * more filter types for AutoFilter. The bug in 0.9.4 that rendered the AmpVTS tonestack selection control inoperative has been rectified. Probably appreciated only by its author or other digital palaeontologists, the CabinetIII plugin has been reintroduced. CabinetIV is still recommended over it because of the wider range of models, sample rate independency and lesser computational demands. Sample rate dependencies have been removed from NoiseGate, and its attack time is now configurable. http://quitte.de/dsp/caps.html http://quitte.de/dsp/caps.html#AmpVTS http://quitte.de/dsp/caps.html#Compress http://quitte.de/dsp/caps.html#AutoFilter http://quitte.de/dsp/caps.html#NoiseGate

13 years, 1 month

Re: [LAU] [LAD] [ann] CAPS 0.9.5

by Tim Goetze

Ciao Gianfranco, >I think the AutoFilter has something wrong. [...] >According to the webpage doc, in default settings it should work as a >AutoWah but it doesn't. You're right, the last round of changes have reduced the range of automatic filter modulation to the point of it being virtually inaudible. Sorry! The attached patch restores the modulation range (and it increases the default filter gain) so the effect becomes much more pronounced. Grazie, Tim

13 years, 1 month

[LAU] I need to catalogue wave file regions.

by John Murphy

As far as I know there isn't anything available for Linux which has the sole purpose of marking and cataloguing (.wav) sound file regions. I don't know of anything on another platform which does it either. I need to: 1) Look at and zoom in on mostly quite big wav files circa 1.3GB, to find sections/regions which are particularly musical, or informative, and mark and name them for later access. Only a few fields of information would be necessary. 2) Compile a 'play list' of regions to be played, while displaying configurable fields of the details entered. That's it really, although I have some particular demands for controls which would aid my work-flow. I've got used to using a really old Windows program, which isn't really suitable for the job, but I manage. No JACK ability there though of course. I think it needs writing, if it is not already written. Anyone know something like that? Functionally; it would be a bit like a DVD authoring application and I wondered if I should contact the authors of Bonobo or similar. Main difference being source material could be anywhere on the file system. Compilations could be prepared for writing to CD perhaps, but mainly - it would be used to create compilations to play on the computer. Perhaps Version 2 could even generate pleasant musical programs with just a few hints from user. ;) I don't have time to learn programming, but I do try to support those who can write, and I'd do so if someone was willing to write it for me/us. Any advice would be most appreciated, thanks. -- John.

13 years, 1 month

Re: [LAU] Library for simple audio programming

by Kjetil Matheussen

James Harkins: > FWIW, this task is incredibly easy in SuperCollider: Perhaps it's easier than writing C, but there should be many alternatives that are easier than your example. For instance SND: (define reader (make-readin "filename.wav")) (call-with-output-file "outfile.txt" (lambda (out) (let loop ((i 0)) (if (< i (mus-length reader)) (begin (format out "~A\n" (readin reader)) (loop (1+ i))))))) (There are probably systems where you can do this far simpler though.)

13 years, 1 month

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Linux-audio-user January 2013