Linux-audio-dev March 2006

linux-audio-dev@lists.linuxaudio.org

87 participants
76 discussions

Re: [linux-audio-dev] Best opensource license to use?

by Chris Cannam

> i intend to release an application, which allows to > use VST(i)s running on an XP machine from > a linux jack client, hooked up over ethernet. If all the code is your own, consider the approach we used in dssi-vst, which is to use the GPL plus an exception to allow for the unavailability of VSTSDK sources. It won't be GPL-compatible or "Debian" free, but nothing will be if not all the source is available, and I think it best expresses the intention -- if your preference would naturally be for the GPL, that is. Meanwhile, write and remind Steinberg that their license could be more helpful to developers of Windows and Linux plugins and hosts. It won't be news and there's no real reason they should care, but it's worth a nudge that these things matter to people, including those who would like to promote, recommend and use their standard. As it happens I'm also shortly about to release a Windows plugin host that is not at all in competition with Steinberg products, but that can't host VSTs for licensing reasons and will use DSSI plugins instead. Hosting audio plugins is not a major part of this program so the difference isn't going to be all that significant to me or anyone else, but it's an interesting situation. Chris

19 years

[linux-audio-dev] What is currently the best USB audio interface for Linux?

by ico

Hi all, I am in the process of considering a portable USB audio interface. Having checked the alsa matrix, I am a bit at a loss what may be the best option. Things I am looking for are as follows (they are listed in no particular order): 1) USB interface 2) Preferrably USB 2.0 capable 3) Audio and MIDI capability 4) High fidelity (higher the better) 5) More inputs/outputs, the better 6) Preferrably has some preamp inputs 7) Obviously must be supported in Linux/Alsa 8) Price not an issue Any ideas? Best wishes, Ico

19 years

[linux-audio-dev] LADSPA processing: ams, om, ... Anything else?

by Andrew Gaydenko

Are there alternatives for 'ams' and 'om'? My problems are: - 'ams' has not text fields to type-in controls values with needed precision, sliders are not sufficient, - 'om' engine has too many crashes (I see, it is normal, as the app is under development). Anything else?

19 years

[linux-audio-dev] [Announce] MusE 0.8 released

by Robert Jonsson

MusE 0.8 is here at last. [Introduction] MusE 0.8 was originally intended to be called 0.7.2 but for various reasons (featuritis, time, and because 'I wanna!') we decided to call it 0.8. This is most likely the last release in the old series, next up is the much rewritten 1.0. This release contains a number of new features lots of stability and usability improvements. All users are encouraged to upgrade. [Notable new features] - Syncronization with external hardware using Midi Clock now works (see Errata on homepage for known limitations) - Support for restaring jack during runtime - Import and export of midi parts with drag&drop support - Import of plugin-presets with drag&drop support - Internal lightweight wave editor + link to external editor - Lots and lots of improvements, see compressed ChangeLog below [New instrument definition files] - Emu Proteus 200 - Roland E-28 - Roland SCD-70 - Yamaha PSR-275 - MC-505 - Roland Fantom XR - Roland SRX-02 - Roland SRX-09 - Waldorf-Q - Yamaha 01v - Yamaha Motif - Yamaha P100 [Translations] - New polish translation - New german translation - Updated swedish translation - Updated french translation - Updated russian translation [Notable known issues] See the errata section on the homepage for the latest: http://www.muse-sequencer.org/wiki/index.php/Errata0.8 [Compressed list of changes from the ChangeLog] - Extern sync with partial looping support - muse now starts even if jack is not found - fixed a number of divide by zero errors mainly affecting zoom - Updated/improved swedish translation. - Fix for softsynths going silent under load. - amd64 fix for rtc timer - Added updated french translation from Intent - Fixed crash bug in pianoroll when moving several events outside part. - Added popup when enabling rec for a track unable to create it's wave file - Enlarged listeditor dialog (FR:1392090) - Fixed crash bug when arrowing left in an empty editor - Fixed bug in detection of RTC - Organ softsynth did not work correctly - VAM softsynth did not work correctly - Changed audio prefetch buffer to be dynamically sized after the jack buffers - Fixed race condition between threads caused lockup upon quit and load project. - dynamically extends parts, fixes bug:1363066 Paste outside segment - now tries both RTC and Alsa (in that sequence) for main timer - updated muse_ru.ts from Alexandre Prokoudine - removed assert, fixes bug:1376783, deleting track with pianoroll open crashes muse - fixed crash bug for showing plugin-guis when the plugin did not exist - fixed seg fault when deleting last note in pianoroll editor - Fixed bug 1329537 (User defined fonts not updated) - added emuproteus200.idf from Piotr Sawicki - added polish translation from Piotr Sawicki - Handle restart of Jack and restart of audio - Added new timer classes from Jonathan Woithe. - Solo for audio tracks improved by removing the possibility to mute Output tracks - Implemented REPLACE for midi recording - Fixes for Appearance dialog, background pic, event display - Marker window now toggling - Added "raise" to more dialog windows - bounce now stops correctly - Fixed position of import of wave files, inserted at cursor, now inserts at mouse - Added drag&drop support to plugin racks in mixer, internal and to/from disk - Added quick search to LADSPA plugin dialog - Implemented resize of waveparts - Added Idf files by Steve D for Roland FantomXR, SRX-02 and SRX-09 - Internal wave editor enabled with common operations, fade, cut, amplify, etc - Fixed bug with loading of background pixmaps - Fixed bug 1199171 (Time change: a part does not completely fit into 4 bars), part resize problem - Added scrollwheel support for vertical scrolling in arranger, pianoroll and drumeditor - Fixed bug 1056996: Multiple selection, but single paste. Possible to copy several parts in arranger - Fixed bug 1092424: bug in reposition of instruments in drumeditor - Fix for drumtracks and part export/import - Fix for opening Midi port/softsynth dialog when already open (now raised and set to active window) - Added export/import of midi parts (.mpt-files), drag & drop also possible - Fix for generating midi clock - Added Roland E-28 idf file from Jonathan Woithe (js) - Allows for several midi devices with the same name - Fix for bug 1198747, tests for fluidsynth and rtcap in configure.ac - Fix for bug 1198744, added patch for reading browser setting from config without crashing, from Philip Nelson - Fix for bug 1188767, downmix won't stop playback until reaching the right marker - the instrument list in the drumeditor now has fixed width when resizing the window - added nudge event position left/right w keyboard (ctrl+left/rightarrow as default) to pianoroll and drumeditor - added fixed length command to pianoroll, uses snap-to value - added snap/quantize patch from Petr Mazanec (snap of notes in pianoroll+drumeditor is now controlled by snap, not quantize) - simpledrums: added save/load of setup to file, bugfixes. simpledrums version is now 1.0 (go figure! ;) - No longer crashed when enabling audio metronome when there's an aux - fluidsynth: bankno is saved to project, switched to hbank from lbank - make sleep() in watchdog thread non interruptible to avoid watchdog timeouts at startup - added vst preallocation of memory "fix" - More fixes to filenames containing dots (for instance wca files) - Added Yamaha-PSR275 instrument file by Petr Mazanec - fixed patch-info issue in Fluidsynth (bug 1191214) - fixed bug w paste in drumeditor, 1189267, patch from P Mazanec - Fixed bug 1152441, filename can now have several dots - Fixed bug 1183980: fluidsynth pitch controller wasn't given to MusE from the synth - Added an error popup when importing wave files fails. - added support for german localization - help: changed muse homepage location - Fix for overflow when importing midi - Added some fixed on dialog handling, mainly "esc" will close the widget now. - New icons - Added Roland-SCD70.idf from Emiliano Grilli - New version of MC505.idf from Wim VW - Added script to convert MusE 0.6 songs to 0.7-0.8 format - For a complete list of changes see the ChangeLog. For a complete list of changes see the ChangeLog: http://cvs.sourceforge.net/viewcvs.py/lmuse/muse/ChangeLog?rev=1.214.2.141&… Source download available: http://sourceforge.net/project/showfiles.php?group_id=93414&package_id=1842… Regards, /MusE Development team

19 years

[linux-audio-dev] [ANN] netjack-0.9 with alsa I/O (also can be used to bind jackd to 2 soundcards)

by torbenh＠gmx.de

ok... netjack-0.9 is here. this is basically netjack-0.9rc4 with the transport offset of one period fixed. additionally i have added 2 jack clients which open unrelated soundcards. these are fixed reimplementations of the old alsa_client. fully configurable, and better than the alsa_client. it does even work with usb soundcards. using a second soundcard for monitoring purposes is now possible. the only current limitation to this is 16bit. but this will be changed soon... -- torben Hohn http://galan.sourceforge.net -- The graphical Audio language

19 years

[linux-audio-dev] [ANN] Csound 5.01 release

by Istvan Varga

Source and binary packages can be downloaded from here: http://sourceforge.net/project/showfiles.php?group_id=81968 The following Linux binaries are available; these all include the HTML manual as well: Csound5.01-i386d.tar.gz this was built on SuSE 9.3 (x86, GCC 3.x) with double precision floats, and includes a simple GUI installer Csound5.01-i386f.tar.gz same as above, but with single precision floats Csound5.01-x86_64d.tar.gz same as Csound5.01-i386d.tar.gz, but for the AMD64 platform Csound5.01-x86_64f.tar.gz same as above, but single precision floats Csound5.01_i686.rpm an RPM package built on SuSE 10.0 (x86, GCC 4.0) with both single and double precision floats, and includes the following additional features that are not available in the .tar.gz packages: * csoundapi~ object for PD (32 bit floats only) * CsoundVST (GUI frontend and Python module for algorithmic composition; 64 bit floats only) * STK (Perry Cook's Synthesis ToolKit) opcodes * VIM files for syntax highlighting and keyword help --------------------------------------------------------------------------- Changes since Csound 5.00 ------------------------- New features: Made it possible to load opcode plugins only when the opcode is actually used. New opcodes: New track processing opcodes for PVS system: trscale - streaming partial track frequency scaling trshift - streaming partial track frequency shifting trsplit - takes an input containg a TRACKS pv streaming signal and splits it into two signals according to a k-rate frequency 'split point'. trmix - takes two inputs containg TRACKS pv streaming signals and mixes them into a single TRACKS stream trfilter - filters a TRACKS pv streaming signal using an amplitude response curve stored in a function table trcross - streaming partial track cross-synthesis trhighest - extracts the highest-frequency track from a streaming track input signal trlowest - extracts the lowest-frequency track from a streaming track input signal binit - PVS tracks to amplitude+frequency conversion barmodel - creates a tone similar to a struck metal bar max - produces a signal that is the maximum of any number of input signals min - produces a signal that is the minimum of any number of input signals maxabs - produces a signal that is the maximum of the absolute values of any number of input signals minabs - produces a signal that is the minimum of the absolute values of any number of input signals maxaccum - accumulates the maximum value of audio signals minaccum - accumulates the minimum value of audio signals maxabsaccum - accumulates the maximum of the absolute values of audio signals minabsaccum - accumulates the minimum of the absolute values of audio signals Changes: Several opcodes and opcode groups have been moved out of the Csound library and stdopcod library into separate plugins (vbap, babo, grain4, hrtferX, PhisEm opcodes). Improvements in JACK plugin to allow lower latency and remove some restrictions on buffer sizes. Bug fixes: Bug fixes in FLsetVal and FLsetVal_i; allow buttons and button banks in FLsetVal; fixed handle output of FLbutBank (not sure if this is safe); implemented cursor size parameter for FLknob. Fixed bugs in i-rate ZAK opcodes. Fixed hang on very short note before end of score or section. Added hacks to fix the problem of the else branch of an if/then/else always being executed at i-time. Fixed crash on 'then' or 'goto' in variable names in conditional expression for if/elseif. Fixed crashes on missing whitespace between if/elseif and '(' and on extra ')' in expressions. and of course a number of minor bug fixes all over Changes: 2006-03-16 Istvan Varga <ivarga(a)csounds.com> * Opcodes/sftype.h: check for MacOS 9 or PowerPC, and define WORDS_BIGENDIAN on those platforms. 2006-03-13 Anthony Kozar <anthonykozar(a)sbcglobal.net> * Top/main.c: Made TYP_AIFF the default for MacOS 9. * Engine/entry1.c: Removed duplicate OENTRYs. 2006-03-12 jpff <jpff(a)codemist.co.uk> * Opcodes/bilbar.c (bar_run): Corrected boundary condition 2006-03-11 Istvan Varga <ivarga(a)csounds.com> * Engine/express.c: fixes in extending tokenstring buffer 2006-03-10 Anthony Kozar <anthonykozar(a)sbcglobal.net> * Opcodes/minmax.c: * SConstruct: Added new 'minmax' plugin library with opcodes for finding minimum and maximum values among several signals. 2006-03-10 Michael Gogins <gogins(a)pipeline.com> * CSD style command lines in CsoundVST are now translated to orc/sco style before performance in order to save having to edit the command line after loading some CSD files. 2006-03-08 Istvan Varga <ivarga(a)csounds.com> * Made it possible to load opcode plugins only when the opcode is actually used. 2006-03-07 jpff <jpff(a)codemist.co.uk> * Engine/otran.c: Removed DTYPE and lclnxtdcnt as not used 2006-02-25 Michael Gogins <gogins(a)pipeline.com> * Updated SConstruct, custom.py, and Windows installer to build and install PortMidi. 2006-02-24 Istvan Varga <ivarga(a)csounds.com> * InOut/rtjack.c: Use thread locks instead of calling usleep() in a loop to implement blocking I/O; the -+jack_sleep_time option is now deprecated and ignored. Allow non power of two values for -B. Setting -b to the same value as the JACK buffer size is no longer required. * Engine/insert.c: * Engine/musmon.c: Alternate fix to problems on very short (less than 1/2 control period) notes; the previous fix introduced a new bug that resulted in early termination of the score in some cases. * H/version.h: * installer/misc/csound.spec.in: Updated version number from 5.00.1 to 5.01.0 to reflect the addition of new opcodes. 2006-02-24 Victor Lazzarini <Victor.Lazzarini(a)nuim.ie> * Opcodes/psynth.c new track processing opcodes (also added manual pages): trscale, trshift, trsplit, trmix, trfilter, trcross, trhighest, trlowest, binit. 2006-02-15 Istvan Varga <ivarga(a)csounds.com> * InOut/widgets.h: moved file from H/ * InOut/widgets.cpp: bug fixes in FLsetVal and FLsetVal_i allow buttons and button banks in FLsetVal fixed handle output of FLbutBank (not sure if this is safe) implemented cursor size parameter for FLknob 2006-02-13 Istvan Varga <ivarga(a)csounds.com> * OOps/ugrw1.c: fixed bugs in i-rate ZAK opcodes 2006-02-09 Istvan Varga <ivarga(a)csounds.com> * Engine/rdorch.c: splitline(): made checking for invalid characters stricter fixed labels before else/endif allow bitwise NOT operator in UTF-8 format 2006-02-06 Istvan Varga <ivarga(a)csounds.com> * Engine/entry1.c: cogoto requires an i-rate conditional * Engine/musmon.c: fixed hang on very short note before end of score or section * Engine/rdorch.c: added hacks to fix the problem of the else branch of an if/then/else always being executed at i-time. Fixed crash on 'then' or 'goto' in variable names in conditional expression for if/elseif (still does not work if there are no parentheses around the conditional expression). 2006-02-03 Istvan Varga <ivarga(a)csounds.com> * Engine/rdorch.c: fixed crash on extra ) in expressions * Engine/rdorch.c: fixed crash on missing whitespace between if/elseif and ( this needs more testing

19 years

[linux-audio-dev] Re: linux-audio-dev] LADSPA processing: ams, om, ... Anything else?

by Kjetil S. Matheussen

Andrew Gaydenko: > Are there alternatives for 'ams' and 'om'? My problems are: > > - 'ams' has not text fields to type-in controls values with needed > precision, sliders are not sufficient, > - 'om' engine has too many crashes (I see, it is normal, as the app is > under development). > > Anything else? PD is probably what you are looking for, http://pure-data.sf.net You can also use SND, but signal routing is text-based, http://ccrma.stanford.edu/software/snd/ http://www.notam02.no/arkiv/doc/snd-rt/html/rt-Z-H-1.html#node_toc_node_sec… gAlan might also be an alternative, http://galan.sourceforge.net/ And probably a bounch of others. :-)

19 years

[linux-audio-dev] Amplitude modulation with LADSPA

by Andrew Gaydenko

The aim is: - to generate high frequency sine (say, 1-10KHz - carrier), - to modulate it's amplitude with low frquency signal (say, in 1-10Hz range), - to pass this modulated signal through some device, - to demodulate it, and, as a result, - to get that 1-10Hz signal. Is there sutable LADSPA plugins to construct this chain? Thanks in advance! Andrew

19 years

[linux-audio-dev] Fiasco microkernel

by Frank Barknecht

Hallo, I just stumbled across this (via heise.de): http://os.inf.tu-dresden.de/fiasco/overview.html What are Fiasco's distinctive features (i.e., buzzwords)? Fiasco is a preemptible real-time kernel supporting hard priorities. It uses non-blocking synchronization for its kernel objects. This guarantees priority inheritance and makes sure that runnable high-priority processes never block waiting for lower-priority processes. When using L4Linux on top of Fiasco, hard-real-time applications can share one machine with time-sharing (Linux) applications. Fiasco is a real, second-generation µ-kernel protecting applications in address spaces. Thanks to its efficient task and context switching mechanism and its performace-oriented design, the performance penalties induced by address-space security are neglible - much smaller than in older, first-generation µ-kernels like Mach. Sounds somehow interesting. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__

19 years

[linux-audio-dev] CLI wanted - Need PCM to generic SBout on Smoothwall-2 stock kernel

by muzak24h

3 reasons I am posting here: - There are millions of DIY Linux firewalls running on light-kernels (Smoothwall alone reports > million active installs) with no generic Sound blaster support. - Most users, even Linux CLI familiar like myself, will not trade security to swap a kernel on a firewall and break the update mechanism that keeps things secure. - These millions of firewalls have CPU cycles to spare and sit around waisting power and many users would like a way to do audio out. I have posted over a year ago on the SW - UK forum and many are interested and waiting. What is needed: - PIC timer-based code (8259 chip?) to ouput wav direct to SB-out with CLI parms to set generic SB volume, filename, and loop option. Perhaps I'm asking for too much? - Maybe, even pointers in the right direction would help. In fact, if this is easy... just post it in "homebrew mods" at smoothwall.org's community forum. - I will take positive responses here, and duely credit them - This is for everyone! -- View this message in context: http://www.nabble.com/CLI-wanted---Need-PCM-to-generic-SBout-on-Smoothwall-… Sent from the linux-audio-dev forum at Nabble.com.

19 years

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Linux-audio-dev March 2006