Linux-audio-dev

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7535 discussions

[LAD] OpenAV Realtime Buffer Allocation article

by Harry van Haaren

Hey All, I've written up a blog post on allocating (audio) buffers in real-time. The trigger was designing the record functionality for Luppp. http://openavproductions.com/realtime-buffer-allocation Hope its of interest to some, -Harry

12 years, 5 months

[LAD] [ANN] CAPS 0.9.12

by Tim Goetze

CAPS Audio Plugin Suite 0.9.12 http://quitte.de/dsp/caps.html New in this release: Eq4p, a four-way parametric equaliser http://quitte.de/dsp/caps.html#Eq4p (Unlike Fons', this one uses parallel processing but lacks control smoothening other than that provided by a continuous IIR filter history.) Elsewhere, a few stupid bugs have been fixed (one of them keeping PhaserII from reaching strong effect levels), the documentation has undergone a major revision, many plugins have been polished, some renamed, and lots of unnecessary ones have been removed. http://quitte.de/dsp/caps.html#Download Enjoy!

12 years, 5 months

[LAD] 200% OT: "Sitting in an English garden waiting for the sun..." - The Beatles

by Ralf Mardorf

Anybody from Europe, who still has got EPROMS used by some old equipment? It seems to be, that the EPROMS I burned in the stone age, without protecting them against UV light, are still 100% ok nowadays. I'm really surprised. It's not completely off-topic for those who sometimes care about dino-synth under European sunlight, when the RAMs where replaced by EPROMS. I'm positively surprised :). Really, I'm stunned in a positive way :).

12 years, 5 months

Re: [LAD] [LAU] Linux Audio podcast. episode002

by Tim Goetze

[Julien Claassen] > I have been recording music for 11 years now, with Linux. [...] > I'm not sure, if my luck is due to the commandline, it tends to eliminate > a lot of problems, or if I'm just lucky with my Linux. :-) I think the small applications with narrow focus you find used on the commandline are simply a good match for the Linux audio ecosystem with its many one-man part-time projects. On the other hand there's a strong desire among users and developers for applications with a rich feature set and often also a pretty graphical interface. It can of course be done, even by just one man, but it takes a lot of time, vast depth and breadth of skill and dedication and a stable list of features for both the project itself and the libraries involved to make such applications *and polish them to professional standards*. I watch this ambition not without sympathy, but also not without occasionally speculating what the Linux audio landscape might look like with less lofty and more UNIX-shaped goals. Tim

12 years, 6 months

[LAD] [ANN] CAPS 0.9.10

by Tim Goetze

CAPS 0.9.10 =========== http://quitte.de/dsp/caps.html The CAPS Audio Plugin Suite, a LADSPA library comprising classic sound effects, various signal generators and guitar tone processing, sees another update containing some bug fixes, minor sound improvements in various places and a new plugin, "Spice", which, strangely, appears not to be an exciter. http://quitte.de/dsp/caps.html#Spice In addition, the package documentation has been revised and some errors corrected. http://quitte.de/dsp/caps.html#Download Enjoy!

12 years, 6 months

[LAD] beta testers wanted for Hypercyclic and Tonespace

by Thijs van severen

Hi all This weekend i got a message from the dev of Hypercyclic and Tonespace that a new version of these apps is available and they includes jack support You can find info about the arpeggiator and the softsynth here : http://www.mucoder.net/en/ If you are interested in beta testing, you can contact the dev via this page : http://www.kvraudio.com/forum/viewtopic.php?p=5449152 Notes: - 64 bit only - these apps are crossplatform, free, but not open source (however, the dev is putting effort into linux support so that's gottta count for something, right ?) - i'm not involved in any way in this project, so it's best to contact the dev directly if you have any questions (you can find his details here : http://www.mucoder.net/en/about/) grtz Thijs

12 years, 6 months

[LAD] gxtuner 2.1

by hermann meyer

Hi A maintain release of gxtuner is available, thanks goes to the debian project (Jaromír Mikeš) for forwarding the patches. https://sourceforge.net/projects/guitarix/files/gxtuner/

12 years, 6 months

[LAD] Fwd: nsm patching

by Alex

I write this with some caution, as i have no wish to start another lengthy discussion on the merits of various session managers. I'm using non-session-manager to manage my projects, and i will say here it's been successful and time-efficient, to put it mildly. As a user with a lot to startup, nsm has enabled me a lot more time to write, and spend less time on non-writing tasks. (no pun intended) I know this discussion has been had before, but can i ask devs to take another look at nsm-patching their apps, if not already done? The following would be particularly appreciated, here at alextone. Muse2 (This one is a biggie, as i pretty well write nearly all midi) a2jmidid (The default is no -e switch. I don't know why this is, as it seems to be that a2jmidid -e is more likely to be used by default, than not. If this is not nsm-patchable, can we at least have a build option that creates an additional bin exec, something like "a2jmidid-all", or "a2jmidid-e"?) linuxsampler (I start this one from a script that includes the init-after-exec switch, with a default template. Is LS nsm-patchable to "save" a particular .lscp, so it can be started automatically with a session? i.e. Session one uses "orchestra.lscp, session 2 uses "jazz-combo.lscp, and so on) Jconvolver (Same as above. Can jconv be nsm-patched, so i can use different IR.confs for different sessions, and a specific .conf can be saved with a session ?) Thanks, Alex.

12 years, 6 months

[LAD] [ANN] - MOD Pitch Shifter

by Gianfranco Ceccolini

Hi everybody We are very happy to announce the MOD Pitch Shifter https://github.com/portalmod/mod-pitchshifter.git After some unsuccessfull time looking for a nice pitch shifter to offer in the MOD Cloud we decided to make one ourselves. Kudos for Andre Coutinho who did most of the coding. We tried VocProc and Rubberband but none gave satisfactory results, the first being too complicated and the latter yelding too much latency. It is very simple to use - a simple semitones shift and a quality lever - and sounds pretty nice. The team is working on it to make it even nicer but this first version sounds pretty good already. It uses the fftw3 lib which is pretty common and can be installed via the main linux repositories (ubuntu, debian, arch, etc) Hope you all enjoy Kind Regards Gianfranco The MOD Team

12 years, 6 months

[LAD] vu-meter DSP

by Robin Gareus

Hi Fons, Would you mind explaining how the vumeterdsp.cc from jmeters works? In particular how you arrive at the filter-constant: _w = 11.1f / fsamp; With the DSP using a 2nd order low-pass filter, and since VU should have an integration-time of 300ms, I'd have though it should rather be: _w = (1.0 - exp(-2.0 * M_PI / 0.3 / fsamp)) / 2.0; for large values this can be approximated by _w = 10.468 / fsamp; What am I missing? -=-=-=- I suppose the gain is arbitrary, seeing as it is mapped to a GUI element without any numeric display, anyway. But is there something special about: _g = 1.5f * 1.571f; 1.5 * M_PI/2 ?? ie 90 degree deflection? But why the 1.5? -=-=-=- The context of all this is re-using your code to implement a VU meter in Ardour3. For reference, the source-code is at https://github.com/Ardour/ardour/blob/master/libs/ardour/vumeterdsp.cc Some experienced beta-testers contested the ballistics of the meter and I'm trying to get to the bottom of it... Since this might be of general interest, I'm CCing LAD. thanks in advance, robin

12 years, 6 months

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Linux-audio-dev