Linux-audio-dev

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7513 discussions

Re: [LAD] Linux-audio-dev Digest, Vol 68, Issue 3

by Bart Brouns

Hi Alfs, Here are two bpm stretch examples: http://www.surina.net/soundtouch/soundstretch.html#examples All the best, Bart. On Sun, 2012-10-07 at 12:00 +0000, linux-audio-dev-request(a)lists.linuxaudio.org wrote: > soundtouch

12 years, 11 months

[ANN] Qtractor 0.5.6 - The Golf Tango release!

by Rui Nuno Capela

Hi there, Maybe some of you agree with me, that this has been the longest since last dot release and the new one with the least brand new features count being introduced. Aha no big deal I say, the uber-procrastinator is just roaring its ugly head once more, specially after a beloved summer vacation season. Whatever. Qtractor 0.5.6 (golf tango) is now released! One of the interesting dots, if not the most, is that LV2 State Files interface implementation, once in a gruesome SNAFU support status, is now officially over. For the laymen it means that any files, referenced by those LV2 plug-ins which implement the LV2 State Files interface, will get righteously bundled to an archive/zip session file (suffix or extension .qtz), all other cases remain untouched. That should add up some notches on the session portability and archival ranks and purposes. Besides, LV2 1.0.0 compliance status is now closed business. I hope. Moving on, slowly forward... Release highlights: * LV2 State Files support (NEW) * Unused files clean-up removal (NEW) * Edit/Insert empty range (NEW) * MIME Document types and icons (NEW) * Improved plug-in state resilience (FIX) * French and Japanese translations (NEW) Website: http://qtractor.sourceforge.net Project page: http://sourceforge.net/projects/qtractor Downloads: - source tarball: http://downloads.sourceforge.net/qtractor/qtractor-0.5.6.tar.gz - source package (openSUSE 12.2): http://downloads.sourceforge.net/qtractor/qtractor-0.5.6-2.rncbc.suse122.sr… - binary packages (openSUSE 12.2): http://downloads.sourceforge.net/qtractor/qtractor-0.5.6-2.rncbc.suse122.i5… http://downloads.sourceforge.net/qtractor/qtractor-0.5.6-2.rncbc.suse122.x8… - quick start guide & user manual: http://downloads.sourceforge.net/qtractor/qtractor-0.5.x-user-manual.pdf Weblog (upstream support): http://www.rncbc.org License: Qtractor is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later. Change-log: - The dedicated audio outputs setting for instrument plugins was not in effect as default global option for new MIDI tracks, now fixed, hopefully (thanks to danboid aka. Daniel MacDonald persistence). - An immediate Files widget cleanup option is now made available, as to select and remove all unused file entries. - MIDI track (un)solo/mute reset clip event sequence fixing; definite regression to MIDI track's occasional muting bug while clip editing and playback is rolling. - Apologies due on this one: shift/ctrl keyboard modifiers are back in business to change MIDI events currently selected in one single step while on MIDI clip editor (aka. piano-roll). Sorry. - Japanese (ja) translation added (by Takashi Sakamoto). - General time-scale bar, beat and tempo rounding fixing. - Keyboard shortcuts configuration (Help/Shortcuts...) now checks and warns for already assigned key sequences. - The View/Snap menu is now listed as fully accessible actions, making each snap-per-beat setting assignable to a keyboard shortcut (after a feature request by danboid aka. Daniel MacDonald, thanks). - Fixed MIDI resize tool, now applying symmetric proportional changes to pitch-bend event values [-8191, +8191]. - Fixed re-loading of LV2 Presets that are newly created/saved during current session; actually delete and remove a LV2 Preset if found in the file-system (as suggested by Jiri Prochaszka aka. Anchakor, thanks again). - Preset drop-down list is now sorted, on plugin properties dialog. - After a long absence, edit(blue) cursor vertical lines are back on the MIDI clip editor views (aka. piano-roll). - LV2 1.0.0 compliance phase II: LV2 State Files support completed. - Updated to newer LV2 External UI extension support (now maintained by Filipe Coelho aka. falktx). - Brand new editing tool: empty range insertion, split/moving clips or events forward the specified edit-head/tail interval, defaults to next measure or bar (cf. menu Edit/Insert/Range, Track Range). - Don't show the waiting cursor anymore when loading any plugins which might have a nice native editor (GUI) and options are set to show it. - MIDI clip editor now hopefully rid of random but persistent muting, a slight regression to editing while playback is rolling. - A MIDI file player's bug, evident while transport rolling in looped mode, has been fixed with yet another oneliner patch (kind by Jiri Prochaszka aka. Anchakor, thanks again). - LV2 plugins with a Qt4 GUI (guess what or whom?) are now guaranteed to some reasonable window type like Qt::Widget but not Qt::Dialog nor Qt::Popup, preventing those from standing always on top while on some window managers or desktop environments (a simple addition by Jiri Prochaszka aka. Anchakor, thanks). - MIME type icons support for session (*.qtr *.qtr), template (*.qtt) and zip/archive (*.qtz) are now being introduced. - LV2 State Files feature support is shamelessly getting real trial, now letting files referenced in LV2 plugin states to be seamlessly included when saving to a zip/archive file bundle (.qtz suffix). Added some virtual destructor stubs to shut up gcc 4.7 warnings. - Improved plugin state resilience, now finally with parameter name matching, specifically targeted on loading old sessions or plugin preset files (.qtx), preserving old saved plugin states as much as possible in face of rogue or discrete parameter index renumbering, due naturally on any plugin's life cycle ie. upgrades etc.;) - Added some more snap-to-beat divisors (Beat/14, /21 and /28) due on feature request ticket, while dropping highest, probably useless one (Beat/128). - New French (fr) translation added (by Yann Collette, thanks). - Slight late optimization on vertical zebra/grid lines drawing. Enjoy! -- rncbc aka Rui Nuno Capela

12 years, 11 months

[ANN] Praxis LIVE build:120912

by Neil C Smith

Hi All, Praxis LIVE is an open-source, graphical environment for rapid development of intermedia performance tools, projections and interactive spaces. A new build of Praxis LIVE is now available for download. While this is mainly a bug fix release, it does see the Praxis command line player added to the main installation, and work which paves the way for distributing Praxis projects as standalone applications (coming separately in the next couple of weeks). Website - http://code.google.com/p/praxis Release notes - http://code.google.com/p/praxis/wiki/ReleaseNotes Videos - http://praxisintermedia.wordpress.com/2012/07/30/video-rough-cuts-1/ If any of you who've been playing with Praxis LIVE would be interested in submitting example projects for the next release, please get in touch with me off-list. Thanks and best wishes, Neil -- Neil C Smith Artist : Technologist : Adviser http://neilcsmith.net

12 years, 11 months

meterbridge 0.9.2 IEC-scale bug & fix

by Robin Gareus

Hi there, Does anyone have Steve Harris' new email address? steve(a)plugin.org.uk fails with "550 5.1.2 Bad destination system address". Anyway, some of you who package or copied code from meterbridge may be interested in this as well. -=-=-=-=- Hi Steve, Haven't seen you around much on LAD. I hope this email finds you well. Are you still maintaining meterbridge? I've stumbled over a bug in 0.9.2 The IEC scale is not continuous. Attached patch resolves the issue. I don't have access to the IEC-268-18 specs, so I can't tell if the patch is correct, but it does fix the discontinuity between -60db and -50db. To make it obvious, here's the annotated iec_scale(float db): if (db < -70.0f) { def = 0.0f; } else if (db < -60.0f) { def = (db + 70.0f) * 0.25f; // 0.0 .. 2.5 } else if (db < -50.0f) { // def = (db + 60.0f) * 0.5f + 5.0f; // 5.0 .. 10.0 // bug? v0.9.2 def = (db + 60.0f) * 0.5f + 2.5f; // 2.5 .. 7.5 // fix! } else if (db < -40.0f) { def = (db + 50.0f) * 0.75f + 7.5; // 7.5 .. 15.0 } else if (db < -30.0f) { def = (db + 40.0f) * 1.5f + 15.0f; // 15.0 .. 30.0 } else if (db < -20.0f) { def = (db + 30.0f) * 2.0f + 30.0f; // 30.0 .. 50.0 } else if (db < 0.0f) { def = (db + 20.0f) * 2.5f + 50.0f; // 50.0 .. 100.0 } else { def = 100.0f; } Furthermore, the DPM image has a couple of problems: The markers at -10, -19, -20, -25, -30, -35, -55 are off by one pixel (they need to be moved 1px down), the -45db marker is correct. The marks for -40, and -50 are missing and it's easy to mistake the -45db and -55db marks to correspond to the -40db, -50db annotations. Last but not least, the minus-signs of all annotation does not align with the marks and the font used for the annotation text is somewhat blurry.. All fixed in attached image. Cheers! robin

12 years, 11 months

zretune app added to libzita-resampler

by Fons Adriaensen

Hello all, Release 1.2.0 of libzita-resampler now include the 'zretune' app which resamples an audio file by (the inverse of) a ratio given in cents. The output file will have the same nominal sample rate as the input. The effect is to change the pitch AND the lenght of the original file. For small pitch changes (+/- a semitone) the modified length of a sample probably won't matter much. For example zretune --cent 50 input.wav output.wav will result in a file that sounds a quarter tone higher and is about 1.5 percent shorter. Enjoy ! -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow)

12 years, 11 months

LAO scheduled downtime

by Robin Gareus

Hi all, Ico - director of linuxaudio.org - arranged to quadruple the disk-space for our servers. Amongst other things, this will allow us to host large sample-collections (an endeavor Nils has started) as well as prepare for videos from the upcoming Linux-Audio-Conference. linuxaudio.org services will be offline for 5-10 mins later today (around 45 min from now). 26/Sept - 16:00 UTC thanks for your understanding. robin

12 years, 11 months

[Ann] Folve: Fuse file system that convolves flac files on-the-fly

by Henner Zeller

Hi, Over the week or so, I've build some fuse filesystem filters flac files on-the-fly using the zita convolver. This makes it real easy to play around with files and filters. In particular with systems that otherwise don't support stream convolving, but just can read files. This is in its early stages, but should be already pretty usable. To see what is going on, it includes a little webserver that gives a status page of what files are currently being accessed. (from the README:) This fuse filesystem takes an original path to a directory with flac-files and provides these files at the mount point. Accessing audio files will automatically convolve these on-the-fly using the zita convolver by Fons Adriaensen. You can directly use filter configuration files that you have for jconvolver/fconvolver. https://github.com/hzeller/folve So if this is something you're interested in, check it out, provide feedback patches :) -henner

12 years, 12 months

LCA2013 - Multimedia and Music miniconf call for papers

by Jeremy Jongepier

We are pleased to announce that linux.conf.au 2013 (LCA2013) will once again include the Multimedia and Music miniconf. LCA2013 will be held in Canberra, Australia from 28 January to 2 February 2013, and the Multimedia and Music miniconf provides an opportunity for produces and consumers of multimedia and music content to meet and explore all aspects of production and playback of music, audio and video on open-source platforms. The Multimedia and Music miniconf call for papers is now open. We would love to see wide-ranging proposals from across the FOSS multimedia and music community: - from developers of open-source multimedia and music software, discussing new and upcoming features, clever solutions to problems or interesting ideas they are exploring - from users who have built up a workflow which they want to share - from anyone who is doing awesome things with open-source audio and video software that they want to tell the world about Presentation slots of 20 and 50 minutes (plus 5 minutes question time) will be available, with the number of 50 minute talks being determined by the number of proposals received. Past Multimedia and Music miniconfs have featured both user-focused tutorials and talks aimed at developers; please browse our past miniconf websites to see the diverse range of presentations we have had in the past: * http://www.annodex.org/events/lca2013_mmm/#previous To submit a proposal please email your proposal to one of the organisers as described on our "Call for papers" page at: http://www.annodex.org/events/lca2013_mmm/pmwiki.php/Main/CallForPapers The call for papers is open-ended but priority will be given to those who submit proposals prior to 30 October 2012. For more information about the Multimedia and Music miniconf please contact either Jonathan Woithe (jwoithe(a)atrad.com.au) or Silvia Pfeiffer (silviapfeiffer1(a)gmail.com).

13 years

FFADO 2.1.0 released

by Jeremy Jongepier

The FFADO project is pleased to announce the long-awaited version 2.1.0. With improved stability, many bugfixes and a large number of newly supported devices this version represents 2 years work by the small but dedicated FFADO team. All users of FFADO are encouraged to upgrade. This source-only release can be downloaded from http://www.ffado.org/files/libffado-2.1.0.tgz FFADO is brought to you thanks to the work of Daniel Wagner, Pieter Palmers, Philippe Carriere, Adrian Knoth, Arnold Krille, Jonathan Woithe and the many people who have tested FFADO against their devices, provided patches and given suggestions. Changes and additions in FFADO 2.1: * Significantly improved support for the new "juju" firewire stack found in newer kernels * Support for JACK freewheeling mode and set-buffer-size operation * Lower CPU usage * udev rules included in FFADO to give user access to audio device files * More stable streaming * Fix crash when realtime system clock was set * Fix race conditions and invalid memory accesses on shutdown * Fixes for clean compilation on recent gcc versions (up to 4.7) * ffado-diag enhanced to aid debugging efforts * Many bugs fixed New DICE-based devices supported in FFADO 2.1 (up to 96 kHz rate only): * Alesis (no mixer support): io|14 io|26 Multimix16 Firewire * FlexRadio Systems (no mixer support): Flex-5000 * Focusrite: Saffire PRO 40 (44.1 kHz, 48 kHz and 88.2 kHz only) Saffire PRO 24 Saffire PRO 24 DSP (audio streaming and mixer only: no DSP) Saffire PRO 14 (no mixer or router control) Liquid Saffire 56 (experimental: 44.1/48 kHz only, no mixer/router) * Lexicon (generic mixer): I-ONIX_FW810S * DnR (no mixer): Axum Firewire IO card 16x16 * M-Audio (basic audio with generic mixer): ProFire 2626 ProFire 610 * Presonus: Firestudio Project (generic mixer) Firestudio Tube (generic mixer) Firestudio Mobile (no mixer) Studiolive_1642 (no mixer) Studiolive_2442 (no mixer) * TCAT (audio only): DiceII EVM (1) DiceII EVM (2) DiceII EVM (4) * TC Electronic: Konnekt 24D (no mixer support) Konnekt 8 (no mixer support) Studio Konnekt 48 (no mixer support) Konnekt Live (no mixer support) Desktop Konnekt 6 (no mixer support) ImpactTwin (generic mixer only) * Weiss Engineering Ltd. (no mixer support): ADC 2 Vesta Minerva AFI 1 TAG DAC1 INT 202 DAC 202 Other new devices supported by FFADO 2.1: * RME (no MIDI I/O support yet) Fireface 400 Fireface 800 * MOTU 896 mk 3 (audio only, no mixer yet) Traveller mk 3 (experimental) Ultralite mk 3 (experimental) Ultralite hybrid (firewire only, experimental) * FCA-202, and possibly other Oxford FW-92x devices * Mackie Onyx i * M-Audio Ozonic (no mixer) * Phonic HelixBoard 24 Universal (no mixer) * Tascam IF-FW/DM (experimental, incomplete) * Yahama GO46

13 years

Projucer - real-time interactive coding with the JUCE library

by Kaspar Bumke

Just spotted on YouTube: http://youtu.be/imkVkRg-geI For those that don't know, JUCE is a monolithic C++ library that helps you write cross-platform audio applications. I am a bit concerned by the time it seems to be taking to do JIT compilation. What do you think? Would you use it? More details and discussion here: http://rawmaterialsoftware.com/viewtopic.php?f=12&t=9793

13 years

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Linux-audio-dev