Linux-audio-dev

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6 participants
7504 discussions

[linux-audio-dev] midi programming (bulk data on Yamaha TX81z)

by Will Benton

Howdy, all. I've sent a similar message to comp.music.midi and rec.music.makers.synth, but I don't think I'll get many replies. I hope this isn't OT for the list (and that someone here knows the answer!) In any case, I'm trying to write an application that "does stuff" (not necessarily an editor/librarian, but with a small feature overlap) with the user bank and performance data on my TX81z here, and I'm confused about the VMEM bulk data format. 1. Page 74 of the manual states that address 6 (and 16, 26, and 36) is occupied by AME (b6), EBS (b4-2), and KVS (b1-b0) data. However, it also states that KVS data ranges from 0-7, which is clearly impossible in 2 bits. Where's the mistake? Should EBS be bits 5-3 and then KVS as bits 2-0? 2. How would one compute VMEM checksums? Heck, as long as I'm at it, what's the method for computing all of the checksums (i.e. VMEM, PCED, PMEM, SYS, microtune, etc.)? I have looked at the sourcecode for JSynthLib (which, for some reason, doesn't run properly in my environment -- too bad, because it seems to be a good program), but the answers to these questions were not really clear to me from an examination of its TX81z driver. (In its defense, very little bit-twiddling Java code is particularly clear.) In particular, either their checksum implementation is wrong or the TX81z manual is wrong (my money's on the latter). In any case, I'd be glad to hear from anyone with experience doing this kind of junk to the TX81z. It seems that most of the TX81z sysex info available on the net is for real-time control. best, wb -- Will Benton | "Die richtige Methode der Philosophie wäre eigentlich willb(a)acm.org | die: Nichts zu sagen, als was sich sagen läßt...."

22 years, 10 months

[linux-audio-dev] snd_pcm_playback_format

by shiva shankar

I have problem in getting the function snd_pcm_playback_format in 0.5.10 and my kernel is 2.4.18-6 . Thank you Shiva

22 years, 10 months

[linux-audio-dev] Autoconf macros for libsndfile

by Jeff Welty

Anyone made autoconf macros for libsndfile? Specifically ones that could test for the appropriate version of libsndfile? I have completed the initial integration of libsndfile into gwc and am working on the configure scripts, would rather use someone else's before I hack one together myself... Thanks, Jeff Welty

22 years, 10 months

[linux-audio-dev] hi

by Bety Lora

http://www.geocities.com/alikahomapage/alika http://www.lizaclub.da.ru http://www.sokarim.tk

22 years, 10 months

[linux-audio-dev] Ripping CD

by Lars Åslund

Hello, I´m new to this list and i´m not sure if i asking on right forum. I´m looking for information for Ripping a CD to a non compressed format into as good as possible format for audio-playback. Anyone have suggestion on thisone. I´m goona play from a Linux-box with a Semi pro Soundcard with external DAC. Best regards /Lasse - from Sweden

22 years, 10 months

[linux-audio-dev] GNOME multimedia mailing list

by Christian Fredrik Kalager Schaller

Hi everyone, I have now set up a new mailing list at gnome.org for discussing GNOME multimedia development. The list is meant to allow multimedia developers all across the GNOME and GTK+ world to come togheter to discuss issues of interoperability, library development, and general issues related to developing multimedia applications for GTK+ and GNOME. I hope as many as possible of you will join the list and the effort to bring multimedia support under GNOME 2 forward. You find details on the list at: http://mail.gnome.org/mailman/listinfo/gnome-multimedia Sincerely, Christian

22 years, 10 months

Re: [linux-audio-dev] more hdsp stuff

by D R Holsbeck

any new and updated info on the cardbus interface, for the HDSP. Mine should be in the post today, and I am chomping at the bit On Fri, 2002-07-05 at 17:03, Paul Davis wrote: > >Just unwrapped my new thinkpad, so I am thinking of ordering the cardbus > >interface for my hdsp. Has anyone gotten the cardbus to work with the > >digiface box? > > it works (orm has reported it working). it seems very dependent on the > kernel, cardbus utilities and possibly the underlying hardware. if > these 2 succeed with their task of making the pcmcia card appear like > a normal PCI device, then everything proceeds as normal. several > people have combinations of these 3 that fail at this goal. > > >As for the pci/digiface system I currently have, it seems that even > >with the latest cvs code, I still need to unload/reload the hdsp module, > >before Jack is able to use the device. I dont remember the exact > > i believe i have already told you that i fixed this, but have not yet > submitted the patch because i am trying to fix the lack of output issue. > > >message, but I can post it later if it would help. There is no audio > >output, until I load the rme modules, reboot, and reload the modules. > >After which everything seems to work fine. Any ideas on where to look > >for debug info would be greatly appreciated. > > orm did some great detective work. the cardbus/pcmcia version works, > but when it stops, it seems necessary to eject the card then reload it > again. this fixes the output problem. i am hoping to try out an > equivalent process (which you have outlined above), one way or > another, tonight. > > --p > -- drh(a)niptron.com Great spirits have always encountered violent opposition from mediocre minds. -- Albert Einstein They laughed at Einstein. They laughed at the Wright Brothers. But they also laughed at Bozo the Clown. -- Carl Sagan

22 years, 10 months

[linux-audio-dev] liblrdf first release

by Steve Harris

http://plugin.org.uk/lrdf/ I had to bundle up libraptor with the LADSPA specific stuff for complicated reasons, so the auto* stuff is nasty. It builds OK on my RedHat and RedHat+Planet CCRMA machines though. There are no docs yet, but there are some fairly clean exmaples in the examples direcory. The API and subclass heirachy of plugins is far from fixed, so tell me what you think. - Steve

22 years, 10 months

Re: LADPA (was Re: [linux-audio-dev] emagic (logic) drops VST support under OS X)

by Stefan Kost

Paul Davis wrote: >> >>that doesn't solve the generic malloc problem (strings of arbitrary >>size) but it does look attractive for the common case of fixed-size >>events. > > > yes, and it would be less than a few hours to get it working. > > the problem is that many of the interesting data types are variable > sized. MIDI is the most obvious. > For midi: wouldn't it be possible to allocate block of the upper bound-size. I mean midi is constrained by the transfer-rate. Commands can be placed into the buffer at the point in time when they should occure. Ofcourse they need to check if the time-slot is still free and should use the next free one. Stefan -- \|/ Stefan Kost <@ @> private business +-oOO-(_)-OOo------------------------------------------------------ - - - - - | __ Address Zwenkauer Str. 24 HTWK Leipzig, Fb IMN, Postfach 300066 | /// 04277 Leipzig 04277 Leipzig | __ /// Germany Germany | \\\/// Phone +49341 3910483 +49341 30766101 | \__/ EMail st_kost(a)gmx.net kost(a)imn.htwk-leipzig.de | WWW www.sonicpulse.de www.imn.htwk-leipzig.de/~kost/about.html ===-=-=--=---=---------------------------------- - - - - -

22 years, 10 months

[linux-audio-dev] Sweep 0.5.4 -- !ybburcS olleH

by Conrad Parker

Sweep 0.5.4 Development Release ------------------------------- Sweep is a sound wave editor, and it is now also generally useful as a flexible recording and playback tool. Inside lives a pesky little virtual stylus called Scrubby who enjoys mixing around in your files. This development release is available as a source tarball at: http://prdownloads.sourceforge.net/sweep/sweep-0.5.4.tar.gz?download Changes since version 0.5.3 (September 5 2002) include bug fixes for playback during destructive operations and for edits of tiny regions, and improvements in configuration checks for libsndfile-1.0.0. Additionally, scrubbing is now working for reverse playback, and has been tuned for responsiveness independent of sample rate. There is now a web page introducing Scrubby and outlining a few simple editing and live performance techniques: http://www.metadecks.org/software/sweep/scrub.html Summary of library dependencies: * GTK+ 1.2 (standard in most distributions) * libsndfile-1.0.0, available at: http://www.zip.com.au/~erikd/libsndfile/libsndfile-1.0.0.tar.gz * libtdb, available in many distributions or at: http://www.sourceforge.net/projects/tdb Screenshot: http://www.metadecks.org/software/sweep/images/screenshots/sweep_20020813.p… Sweep is designed to be intuitive and to give you full control. It includes almost everything you would expect in a sound editor, and then some: * precise, vinyl like scrubbing * looped, reverse, and pitch-controlled playback * playback mixing of unlimited independent tracks * looped and reverse recording * internationalisation * multichannel and 32 bit floating point file support * LADSPA 1.1 effects support * multiple views, discontinuous selections * easy keybindings, mouse wheel zooming * unlimited undo/redo with fully revertible edit history * multithreaded background processing * shaded peak/mean waveform rendering, multiple colour schemes Help wanted! Sweep needs testing; please report any problems encountered! Urgent development is required in the following areas: ALSA and Jack support, updating of translations and user documentation. (NB. Sweep works fine with ALSA under OSS emulation -- the native ALSA support needs some fixing). Sweep is Free Software, available under the GNU General Public License. More information is available at: http://www.metadecks.org/software/sweep/ Thanks to Pixar Animation Studios and CSIRO Australia for supporting the development of this project. enjoy :) Conrad.

22 years, 10 months

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Linux-audio-dev