Linux-audio-dev

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7516 discussions

by Ben

Sounds interesting. This is what I do for a living. But would any of the linux audio developers actually follow it? -Ben Loftis > Maybe some kind of audio app interface design proposal is in order: > linux audio interface design - basic application control keys: LAID > BACK > > Gerard >

21 years, 5 months

Re: [linux-audio-dev] Is ladspa actually la-dsp-a? Is JACK the ultimate solution?

by eviltwin69＠cableone.net

No, I didn't dream it, I wrote it. I may have missed a slider or two but I think I got most of them. Of course I am talking about the latest CVS not 0.8.0. Jan On Wed, 9 Jun 2004 07:30 , Richard Bown <richard.bown(a)ferventsoftware.com> sent: >On Tuesday 08 June 2004 20:22, Chris Cannam wrote: >> On Tuesday 08 Jun 2004 7:46 pm, eviltwin69(a)cableone.net wrote: >> > Right click on any slider in JAMin and it immediately goes to >> > the default position, whether center or zero. >> >> Ah, now I looked for that feature but didn't find it. In Rosegarden >> you double-click to zero a fader. I didn't think of right-clicking. > >Actually no - you right click in RG to center a fader. Double click doesn't >do anything AFAICT so maybe you dreamt that. >

21 years, 5 months

[linux-audio-dev] Re: UI stuff

by vanDongen/Gilcher

IMHO this is much bigger problem in UI design. In ardour it is shift-click in JAMin it is right click, in Rosegarden it is double-click. That the sliders all look different is much less confusing than that the behaviour is all different. Maybe some kind of audio app interface design proposal is in order: linux audio interface design - basic application control keys: LAID BACK Gerard On Tue, 2004-06-08 at 14:22, Chris Cannam wrote: > On Tuesday 08 Jun 2004 7:46 pm, eviltwin69(a)cableone.net wrote: > > Right click on any slider in JAMin and it immediately goes to > > the default position, whether center or zero. > > Ah, now I looked for that feature but didn't find it. In Rosegarden > you double-click to zero a fader. I didn't think of right-clicking. > -- electronic & acoustic musics-- http://www.xs4all.nl/~gml

21 years, 5 months

[linux-audio-dev] JACK/ALSA cannot set capture period lower than 512 with SBLive

by Lee Revell

Hey, It seems to be a known issue that you cannot run JACK with the capture period size lower than 512 with the SBLive ALSA driver. See this thread: http://ccrma-mail.stanford.edu/pipermail/planetccrma/2003-December/003764.h… and this: http://www.music.columbia.edu/pipermail/linux-audio-user/2003-April/004040.… The above threads seem to indicate that this is a hardware limitation. However it seems to me more like a driver issue. Using the kX drivers (on Windows, http://www.kxproject.com) with the exact same card, an old SBLive Platinum, Ableton Live is usable with the record and playback period sizes (set via ASIO driver config) at 64 samples (2.33 ms latency) with nothing else running, and rock solid at 128 (~5 ms) in the face of basically anything you throw at it. Of course it crashes, as it's Windows, using an alpha quality third-party driver, but is quite usable in a live music setting. 512x2 is not really usable for my purposes. Is this assessment correct, and if so, can someone familiar with the SBLive ALSA driver give me an idea as to how this could be fixed? Could this be done via ALSA config files maybe? Lee

21 years, 5 months

[linux-audio-dev] CCRMA summer workshops in Banff, Canada

by Scott Wilson

Greetings all, a quick note to bring to your attention some exciting audio summer courses happening this summer in Canada. This summer is a special one for the annual CCRMA summer workshops, the workshop series is expanded and is being held in a spectacular new setting at the Banff Centre for the Arts in the Canadian Rocky Mountains. All of the workshops include significant hands-on lab components. The labs will be done on Planet-CCRMA equipped linux workstations - a great opportunity to get acquainted with linux audio tools while learning volumes of useful theory and implementation details. New this summer is the Digital Audio Effects workshop taught by Jonathan Abel and David Berners with special guest Julius Smith. The course focuses on theory and practice of simulating / implementing a wide range of classic analog audio effects (including compressors, reverbs, equalizers ...) in the digital domain. Abel and Berners hail from Universal Audio and are the driving force behind UA's range of renowned and widely used digital audio effect plugins. Detailed descriptions of the courses and registration information is available here: http://www.banffcentre.ca/ccrma/ For questions please do not hesitate to contact the faculty of the courses you're interested in directly, myself, or the banff centre at arts_info(a)banffcentre.ca (1.800.565.9989 or 403.762.6180). Best Regards, scott wilson __________________________________________________________________ CCRMA@Banff Summer Workshops 2004 __________________________________________________________________ The Banff Centre and Stanford University welcome CCRMA (Centre for Computer Research in Music and Acoustics) to Banff this summer for six intensive programs where top educators and researchers from the fields of music, engineering, and computer science will present a detailed study of specialized subjects in an awe-inspiring setting. The CCRMA@Banff Programs Include: - Physical Interaction Design for Music (July 5 - July 16) Faculty: Scott Wilson, Michael Gurevich Guest: Bill Verplank - Haptic Musical Devices (July 19 - 23) Faculty: Charles Nichols Guest: Perry Cook - Digital Signal Processing I: Spectral & Physical Models (July 26- August 6) Faculty: Perry Cook, Xavier Serra - Perceptual Audio Coding (August 9 - 13) Faculty: Marina Bossi Guest: Richard Goldberg - ANET: High Quality Audio over Networks Summit (August 20-22) Faculty: Chris Chafe, Theresa Leonard - Digital Signal Processing II: Digital Audio Effects (August 16 - 27) Faculty: Jonathan Abel, Dave Berners Guest: Julius O. Smith About Music & Sound Programs at The Banff Centre: Music & Sound programs are dedicated to supporting emerging and mid-career artists and to providing personalized artistic direction suited to each participant. The goal is to nurture the creativity of musicians and audio engineers in a setting that allows for maximum personal artistic development and interaction with other musicians and artists in The Banff Centre community. Music & Sound alumni are found on concert stages and in professional positions nationally and internationally. Register now to ensure space, as availability is limited. For more information and to register, visit: http://www.banffcentre.ca/ccrma e-mail: arts_info(a)banffcentre.ca call: 1.800.565.9989 or 403.762.6180

21 years, 5 months

[linux-audio-dev]Using python for small multimedia app ?

by Cournapeau David

Hi there, I am discovering python, having looked for a matlab-like environement. I am wondering now if it is possible to do some small multimedia applications with it; more precisely, I would like to develop a scientific application for audio/video analysis. Basically, I need to show an avi video with a synchronised waveform view of the sound, and some other features views, like the pitch of the film voices (the actual pitch detection doesn't need to be computed on the fly). Python seems really great for rapid developement, but I wonder if it is possible to play different media synchronously (the media decoding itself will be of course coded in C/C++) with it? Does anyone here have any experience with multimedia and python ? cheers, David

21 years, 5 months

[linux-audio-dev] audio 5.1

by matteorox＠tin.it

i'm trying to create a program to create 6 mono wave files from n mono waves files in a virtual room, to re-create dolby 5.1 sound. have someone ideas about best algorithm to divide sound among diffusor? if someone of you is interesting, pls reply me...thanks

21 years, 5 months

[linux-audio-dev] timidity++ live

by Jens M Andreasen

Hi! What is the procdure to get timidity++ to work with an OSS raw midi in, live? mvh // Jens M Andreasen

21 years, 5 months

[linux-audio-dev] Voice playback with varying speed and same pitch

by Mario Lang

Hi. I am currently trying to write a player for the DAISY 2 and 3 Digital Talking Book formats for UNIX machines. One of the big great features of the hardware DAISY players available is to set ones own prefers playback speed while retaining the original pitch of the voice. This only works within a certain percentage of variation of course, but it does actually help a lot if you're used to fast speech. I am wondering if there are any existing libraries/command-line tools to do this. DAISY uses mp3 as its main audio format, so it would help if this tool could do it with mp3 directly, but I can probably integrate other solutions too. Any suggestions would be appreciated. Note that I do not really need an algorithm that works well with music in general, it only has to work well with the typical spectrum of a human voice. -- CYa, Mario | Debian Developer <URL:http://debian.org/> | Get my public key via finger mlang(a)db.debian.org | 1024D/7FC1A0854909BCCDBE6C102DDFFC022A6B113E44

21 years, 5 months

[linux-audio-dev] OpenJay Development Krew [OJDK]

by J_Zar

Finally, I would like to introduce the OpenJay Development Krew [OJDK], which actually is only a mailing list with little mail-traffic. The OJDK is the right place for OSS Dj oriented software developers: here you should find the right audience for discussing, sharing and improving code, take / give suggestions and similar. The OSS software is actually a powerful alternative (and with always greater occurrence a refferral point) in many fields. Although it is not the djing OSS case. There are many reasons for that: little OSS compatible hardware, few and small projects... few users... The closed ring of open dj software is based upon few users and few developers. Crashing it is my intention. To do that my efforts are enclosed in three projects (enough to cover the whole issue) : - OpenJay.org : the user side of the opensource dj world ; - OpenJay Development Krew [OJDK] : the developer side of the opensource dj world ; - Jay'O'Rama : my personal software solution which I'm developing since 1 year and that will be only an alternative ; You should think to OJDK not as a project factory, but mainly as an improving factor for code and a discussing place. Projects will come if needed and desired. Please...if you are an interested developer, CATCH THE OPPORTUNITY, join the OJDK list and mail it! More than money or hardware, I need more than ever some community help in these directions... There are already some project developers joined our little community. See the homepage for more info: http://www.openjay.org/ojdk http://www.ojdk.tk -- J_Zar Gianluca Romanin ---------------- see you at OpenJay.Org

21 years, 5 months

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Linux-audio-dev