Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

4 participants
7538 discussions

[linux-audio-dev] deblocking snd_seq_event_input()

by Fons Adriaensen

Hello, Is there a simple (i.e. simpler than getting the pollfd and using them) to force snd_seq_event_input() in blocking mode to return, so the the calling thread can close the handle and cleanup ? Neither snd_seq_close() nor snd_seq_nonblock() seem to have any effect. -- FA

20 years, 9 months

[linux-audio-dev] [ANNOUNCE] qjacklam roundtrip latency meter

by Karsten Wiese

available via cvs from http://developer.berlios.de/projects/qjacklam/ you need qt-devel to compile. latency is displayed in frames. comments welcome. Karsten

20 years, 9 months

[linux-audio-dev] [ANN] Om 0.1.0 Released

by Dave Robillard

Hi all, Om is a modular synthesizer that runs under Jack and uses LADSPA and/or DSSI plugins for processing. The engine is an independant process entirely controlled via OSC, is polyphonic, and supports subpatches. More information, screenshots, and downloads available at http://www.nongnu.org/om-synth/. Please report bugs, feedback, feature requests, etc. on the Savannah bugs page; or feel free to email me privately. Enjoy, -DR-

20 years, 9 months

[linux-audio-dev] RE: Waveform

by Fisher, Michael R

Ok, so that seems pretty intense. I just wanted to see what was involved so I can start reading up. I appreciate all the help. Thanks Mike

20 years, 9 months

[linux-audio-dev] Waveform

by Fisher, Michael R

Hi, I'm extremely new to audio programming. I have a million questions, but the one burning my brain now is how do I get a program written with the qt widget library to display an audio waveform. Also, any links to good documentation for audio programming would be good. Thanks Mike Fisher

20 years, 9 months

[linux-audio-dev] Gungirl Sequencer Version 0.3.0

by Richard Spindler

Hi, Gungirl Sequencer Version 0.3.0 is ready, and it comes with an impressive set of new features: - Automations, Fade-in, Fade-Out - Unlimited Undo - Sample Stretching and Trimming - Unlimited Number of Tracks - Zip-Packages of Songs - Looping About ggseq: It's a simple Audio-Sequencer designed for arranging small Sound-Loops, as available on CD from various Producers. It's not a general Purpose Sound Editor, it has no support for large audiofiles. It doesn't do MIDI. It's a fun toy, for people new to electronic music-making. It's available from the Gungirl Sequencer Homepage at: http://ggseq.sourceforge.net/ There is a source tarball that requires the following dependencies: - wxGTK 2.4.x or later - libsndfile 1.0.0 or later - libsamplerate 0.0.15 or later There is a statically linked binary release that should run on most recent Version of the GNU/Linux OS, provided GTK+ is installed. And there is a win32 Installer. Have fun -Richard Spindler <richard.spindler AT gmail.com>

20 years, 9 months

[linux-audio-dev] My photos from LAC 2005 now online

by Frank Neumann

Hi all, a little late (I'm always late with this stuff :-), but finally online; the photos I made during the LAC2005 conference: http://www.linuxdj.com/audio/lad/contrib/zkm_meeting_2005/photos/frank_neum… Enjoy, Frank

20 years, 9 months

[linux-audio-dev] HDSP No Go With 2.6.11 Kernel

by Janina Sajka

In case this is news, I'm reporting a total failure of the snd-hdsp driver under the latest Fedora released kernel, 2.6.11-1.14_FC3spksmp, both with the x86_64 and i686 kernels. As a result, I've reverted to 2.6.10-1.770_FC3spksmp.i686. I'm using 1.0.9RC2 of alsa driver, lib, utils, and tools. Firmware is 1.0.8 -- all most current releases. It seems as if no symbol in the driver is recognized. Here's the output from attempting to start alsa, and the relevant lines in dmesg: service alsasound start Starting sound driver: snd-hdsp FATAL: Error inserting snd_pcm (/lib/modules/2.6.11-1.14_FC3spksmp/kernel/sound/core/snd-pcm.ko): Unknown symbol in module, or unknown parameter (see dmesg) WARNING: Error running install command for snd_pcm FATAL: Error inserting snd_hdsp (/lib/modules/2.6.11-1.14_FC3spksmp/kernel/sound/pci/rme9652/snd-hdsp.ko): Unknown symbol in module, or unknown parameter (see dmesg) done snd_pcm: disagrees about version of symbol snd_info_register snd_pcm: Unknown symbol snd_info_register snd_pcm: disagrees about version of symbol snd_info_create_module_entry snd_pcm: Unknown symbol snd_info_create_module_entry snd_pcm: disagrees about version of symbol snd_timer_notify snd_pcm: Unknown symbol snd_timer_notify snd_pcm: disagrees about version of symbol snd_timer_interrupt snd_pcm: Unknown symbol snd_timer_interrupt snd_pcm: disagrees about version of symbol snd_info_free_entry snd_pcm: Unknown symbol snd_info_free_entry snd_pcm: disagrees about version of symbol snd_ctl_register_ioctl snd_pcm: Unknown symbol snd_ctl_register_ioctl snd_pcm: disagrees about version of symbol snd_card_file_add snd_pcm: Unknown symbol snd_card_file_add snd_pcm: disagrees about version of symbol snd_unregister_device snd_pcm: Unknown symbol snd_unregister_device snd_pcm: disagrees about version of symbol snd_timer_new snd_pcm: Unknown symbol snd_timer_new snd_pcm: disagrees about version of symbol snd_device_new snd_pcm: Unknown symbol snd_device_new snd_pcm: disagrees about version of symbol snd_ctl_unregister_ioctl snd_pcm: Unknown symbol snd_ctl_unregister_ioctl snd_pcm: disagrees about version of symbol snd_info_create_card_entry snd_pcm: Unknown symbol snd_info_create_card_entry snd_pcm: disagrees about version of symbol snd_power_wait snd_pcm: Unknown symbol snd_power_wait snd_pcm: disagrees about version of symbol snd_device_free snd_pcm: Unknown symbol snd_device_free snd_pcm: disagrees about version of symbol snd_card_file_remove snd_pcm: Unknown symbol snd_card_file_remove snd_pcm: disagrees about version of symbol snd_info_unregister snd_pcm: Unknown symbol snd_info_unregister snd_pcm: disagrees about version of symbol snd_device_register snd_pcm: Unknown symbol snd_device_register snd_pcm: disagrees about version of symbol snd_register_device snd_pcm: Unknown symbol snd_register_device snd_hdsp: Unknown symbol snd_pcm_new snd_hdsp: Unknown symbol snd_interval_refine snd_hdsp: Unknown symbol snd_pcm_set_sync snd_hdsp: Unknown symbol snd_pcm_hw_rule_add snd_hdsp: Unknown symbol snd_interval_list snd_hdsp: Unknown symbol snd_pcm_lib_ioctl snd_hdsp: Unknown symbol snd_pcm_set_ops snd_hdsp: Unknown symbol snd_pcm_hw_constraint_list snd_hdsp: Unknown symbol _snd_pcm_hw_param_setempty snd_hdsp: Unknown symbol snd_pcm_hw_constraint_msbits snd_hdsp: Unknown symbol snd_pcm_period_elapsed [3 unrelated httpd lines] snd_pcm: disagrees about version of symbol snd_info_register snd_pcm: Unknown symbol snd_info_register snd_pcm: disagrees about version of symbol snd_info_create_module_entry snd_pcm: Unknown symbol snd_info_create_module_entry snd_pcm: disagrees about version of symbol snd_timer_notify snd_pcm: Unknown symbol snd_timer_notify snd_pcm: disagrees about version of symbol snd_timer_interrupt snd_pcm: Unknown symbol snd_timer_interrupt snd_pcm: disagrees about version of symbol snd_info_free_entry snd_pcm: Unknown symbol snd_info_free_entry snd_pcm: disagrees about version of symbol snd_ctl_register_ioctl snd_pcm: Unknown symbol snd_ctl_register_ioctl snd_pcm: disagrees about version of symbol snd_card_file_add snd_pcm: Unknown symbol snd_card_file_add snd_pcm: disagrees about version of symbol snd_unregister_device snd_pcm: Unknown symbol snd_unregister_device snd_pcm: disagrees about version of symbol snd_timer_new snd_pcm: Unknown symbol snd_timer_new snd_pcm: disagrees about version of symbol snd_device_new snd_pcm: Unknown symbol snd_device_new snd_pcm: disagrees about version of symbol snd_ctl_unregister_ioctl snd_pcm: Unknown symbol snd_ctl_unregister_ioctl snd_pcm: disagrees about version of symbol snd_info_create_card_entry snd_pcm: Unknown symbol snd_info_create_card_entry snd_pcm: disagrees about version of symbol snd_power_wait snd_pcm: Unknown symbol snd_power_wait snd_pcm: disagrees about version of symbol snd_device_free snd_pcm: Unknown symbol snd_device_free snd_pcm: disagrees about version of symbol snd_card_file_remove snd_pcm: Unknown symbol snd_card_file_remove snd_pcm: disagrees about version of symbol snd_info_unregister snd_pcm: Unknown symbol snd_info_unregister snd_pcm: disagrees about version of symbol snd_device_register snd_pcm: Unknown symbol snd_device_register snd_pcm: disagrees about version of symbol snd_register_device snd_pcm: Unknown symbol snd_register_device snd_hdsp: Unknown symbol snd_pcm_new snd_hdsp: Unknown symbol snd_interval_refine snd_hdsp: Unknown symbol snd_pcm_set_sync snd_hdsp: Unknown symbol snd_pcm_hw_rule_add snd_hdsp: Unknown symbol snd_interval_list snd_hdsp: Unknown symbol snd_pcm_lib_ioctl snd_hdsp: Unknown symbol snd_pcm_set_ops snd_hdsp: Unknown symbol snd_pcm_hw_constraint_list snd_hdsp: Unknown symbol _snd_pcm_hw_param_setempty snd_hdsp: Unknown symbol snd_pcm_hw_constraint_msbits snd_hdsp: Unknown symbol snd_pcm_period_elapsed snd_pcm: disagrees about version of symbol snd_info_register snd_pcm: Unknown symbol snd_info_register snd_pcm: disagrees about version of symbol snd_info_create_module_entry snd_pcm: Unknown symbol snd_info_create_module_entry snd_pcm: disagrees about version of symbol snd_timer_notify snd_pcm: Unknown symbol snd_timer_notify snd_pcm: disagrees about version of symbol snd_timer_interrupt snd_pcm: Unknown symbol snd_timer_interrupt snd_pcm: disagrees about version of symbol snd_info_free_entry snd_pcm: Unknown symbol snd_info_free_entry snd_pcm: disagrees about version of symbol snd_ctl_register_ioctl snd_pcm: Unknown symbol snd_ctl_register_ioctl snd_pcm: disagrees about version of symbol snd_card_file_add snd_pcm: Unknown symbol snd_card_file_add snd_pcm: disagrees about version of symbol snd_unregister_device snd_pcm: Unknown symbol snd_unregister_device snd_pcm: disagrees about version of symbol snd_timer_new snd_pcm: Unknown symbol snd_timer_new snd_pcm: disagrees about version of symbol snd_device_new snd_pcm: Unknown symbol snd_device_new snd_pcm: disagrees about version of symbol snd_ctl_unregister_ioctl snd_pcm: Unknown symbol snd_ctl_unregister_ioctl snd_pcm: disagrees about version of symbol snd_info_create_card_entry snd_pcm: Unknown symbol snd_info_create_card_entry snd_pcm: disagrees about version of symbol snd_power_wait snd_pcm: Unknown symbol snd_power_wait snd_pcm: disagrees about version of symbol snd_device_free snd_pcm: Unknown symbol snd_device_free snd_pcm: disagrees about version of symbol snd_card_file_remove snd_pcm: Unknown symbol snd_card_file_remove snd_pcm: disagrees about version of symbol snd_info_unregister snd_pcm: Unknown symbol snd_info_unregister snd_pcm: disagrees about version of symbol snd_device_register snd_pcm: Unknown symbol snd_device_register snd_pcm: disagrees about version of symbol snd_register_device snd_pcm: Unknown symbol snd_register_device snd_hdsp: Unknown symbol snd_pcm_new snd_hdsp: Unknown symbol snd_interval_refine snd_hdsp: Unknown symbol snd_pcm_set_sync snd_hdsp: Unknown symbol snd_pcm_hw_rule_add snd_hdsp: Unknown symbol snd_interval_list snd_hdsp: Unknown symbol snd_pcm_lib_ioctl snd_hdsp: Unknown symbol snd_pcm_set_ops snd_hdsp: Unknown symbol snd_pcm_hw_constraint_list snd_hdsp: Unknown symbol _snd_pcm_hw_param_setempty snd_hdsp: Unknown symbol snd_pcm_hw_constraint_msbits snd_hdsp: Unknown symbol snd_pcm_period_elapsed snd_pcm: disagrees about version of symbol snd_info_register snd_pcm: Unknown symbol snd_info_register snd_pcm: disagrees about version of symbol snd_info_create_module_entry snd_pcm: Unknown symbol snd_info_create_module_entry snd_pcm: disagrees about version of symbol snd_timer_notify snd_pcm: Unknown symbol snd_timer_notify snd_pcm: disagrees about version of symbol snd_timer_interrupt snd_pcm: Unknown symbol snd_timer_interrupt snd_pcm: disagrees about version of symbol snd_info_free_entry snd_pcm: Unknown symbol snd_info_free_entry snd_pcm: disagrees about version of symbol snd_ctl_register_ioctl snd_pcm: Unknown symbol snd_ctl_register_ioctl snd_pcm: disagrees about version of symbol snd_card_file_add snd_pcm: Unknown symbol snd_card_file_add snd_pcm: disagrees about version of symbol snd_unregister_device snd_pcm: Unknown symbol snd_unregister_device snd_pcm: disagrees about version of symbol snd_timer_new snd_pcm: Unknown symbol snd_timer_new snd_pcm: disagrees about version of symbol snd_device_new snd_pcm: Unknown symbol snd_device_new snd_pcm: disagrees about version of symbol snd_ctl_unregister_ioctl snd_pcm: Unknown symbol snd_ctl_unregister_ioctl snd_pcm: disagrees about version of symbol snd_info_create_card_entry snd_pcm: Unknown symbol snd_info_create_card_entry snd_pcm: disagrees about version of symbol snd_power_wait snd_pcm: Unknown symbol snd_power_wait snd_pcm: disagrees about version of symbol snd_device_free snd_pcm: Unknown symbol snd_device_free snd_pcm: disagrees about version of symbol snd_card_file_remove snd_pcm: Unknown symbol snd_card_file_remove snd_pcm: disagrees about version of symbol snd_info_unregister snd_pcm: Unknown symbol snd_info_unregister snd_pcm: disagrees about version of symbol snd_device_register snd_pcm: Unknown symbol snd_device_register snd_pcm: disagrees about version of symbol snd_register_device snd_pcm: Unknown symbol snd_register_device snd_hdsp: Unknown symbol snd_pcm_new snd_hdsp: Unknown symbol snd_interval_refine snd_hdsp: Unknown symbol snd_pcm_set_sync snd_hdsp: Unknown symbol snd_pcm_hw_rule_add snd_hdsp: Unknown symbol snd_interval_list snd_hdsp: Unknown symbol snd_pcm_lib_ioctl snd_hdsp: Unknown symbol snd_pcm_set_ops snd_hdsp: Unknown symbol snd_pcm_hw_constraint_list snd_hdsp: Unknown symbol _snd_pcm_hw_param_setempty snd_hdsp: Unknown symbol snd_pcm_hw_constraint_msbits snd_hdsp: Unknown symbol snd_pcm_period_elapsed -- Janina Sajka Phone: +1.202.494.7040 Partner, Capital Accessibility LLC http://www.CapitalAccessibility.Com Chair, Accessibility Workgroup Free Standards Group (FSG) janina(a)freestandards.org http://a11y.org If Linux can't solve your computing problem, you need a different problem.

20 years, 9 months

[linux-audio-dev] Nord Modular instrument converter

by Juhana Sadeharju

Hello. I started working on a Nord Modular to PD converter. ftp://ftp.funet.fi/pub/sci/audio/devel/nordmodular/ NM users have patched thousands of free instruments (http://nordsynth.zevv.nl). It would be nice to be able to use the user-made instruments elsewhere. I choosed PD but we should make the converter general enough so that converters to other modular systems can be written. I can work on them as well. Check for "http://nmedit.sourceforge.net" for a NM instrument file parser. The NM file format is close to PD's own. Anyone could rewrite the parser standalone in C, Python, etc? [[ I see no problem in writing the converter. Buying a Nord Modular does not mean that its users should restrict their intellectual property to Nord Modular. ]] Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

20 years, 9 months

Re: [linux-audio-dev] CSound usability (was: Common synthesizer, interface...)

by steven yi

Hi Toby and All, >But from my (limited) experience I see that not only does writing a >CSound instrument require knowledge of the CSound language and of its >architecture (that's obvious), but that *incorporating* an existing >CSound instrument into a new composition requires almost the same >skills. And those are computer programmer-level skills, not average >music writer-level ones. I would say that most computer music people who use sequencers do not write their own instruments either, rather opting for instruments built by someone else and using presets and modification of parameters via GUI. The same is possible in Csound to reuse someone else's instruments and only explore the instrument's qualities via configuration with text. With blue, you can create a GUI for instruments using it's builtin UI Builder (http://csounds.com/stevenyi/blue/blueDocs/html/blueSynthBuilder.html). Also, you can trade instruments--UI, instrument code, and presets--via the builtin BlueShare community interface. (i.e. explore the instruments on the server, download directly to your instrument library and start working). So, with the BlueSynthBuilder instruments and the PianoRoll, you can really get to working with Csound with a minimal amount of Csound knowledge. >Let's make a comparison, although a simple, maybe unworthy one: Reasonâ„¢. >Novice users don't *need* to know how the MalstrÃ¶m* works to be able to >1. load a patch 2. give it MIDI input and 3. start playing. They only >need that kind of skill if they want to make their own patches or modify >existing ones. (*: a small piece of soft-synth found in Reasonâ„¢) > >Granted, the power of any synth lies in customization, but IMHO part of >its *usability* lies in being able to play it *without* knowing how to >program it. That's what presets are for anyways! > >I'm under the impression that CSound fails right there. I wouldn't quite agree. As mentioned above, one can reuse others' instruments with Csound and do the same thing as you mention, not concerning themselves with programming the instrument but exploring the parameters of the instrumet. With Csound alone it would be text as the interface versus Maelstrom's GUI interface, with blue there would be not much difference except blue's UI is not realtime. >An ORC file you say? Most of the instruments I've seen need both and >ORC and a SCO file to be of any use (problem #1.) Moreover, since you >need to come up with a single ORC and a single SCO to make CSound render >your composition, you have to merge the various ORC/SCO file-pairs of >the instruments you want to use, along with the additional SCO file >containing the actual notes (problem #2) and AFAIK you need vast >knowledge of the ORC and SCO syntax to be able to do it (problem #3.) blue has many features for orchestra management as well as SCO handling and generation via it's SoundObjects that generally alleviates issues as mentioned above with orc/sco file management. >I could go on, but I think you see my point. (Unless I'm seriously >misunderstanding how CSound works nowadays, in which case I'll apologize >to everybody and go read some CSound mailing list archives!) Well, I wouldn't say you've misunderstood Csound entirely, but just wanted to offer another view of Csound via my program blue in this message that may make Csound appear a bit differently than as you imagine. steven

20 years, 9 months

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Linux-audio-dev