Linux-audio-dev

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7440 discussions

Re: [linux-audio-dev] Knobs / widget design

by Adam King

> Message: 3 > Date: Thu, 10 Jun 2004 01:40:01 +0200 > From: Benno Senoner <sbenno(a)gardena.net> > Subject: Re: [linux-audio-dev] Knobs / widget design > To: "The Linux Audio Developers' Mailing List" > <linux-audio-dev(a)music.columbia.edu> > Message-ID: <40C79FD1.4030306(a)gardena.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Very nice knobs Thorsten ! > We could use them in LinuxSampler :) > Rui Nuno Capela has started work on the GUI > http://www.linuxsampler.org/screenshots.html > For example the channel strips could use a knob for volume instead of a > fader > which would save some space. > > Thorsten in what format do you plan to release the knobs ? > As a serie of pixmaps in various sizes ? > ( I guess for larger knobs at least 50-100 pixmaps are needed > to allow for smooth movements). > Or do you use open source rendering apps thus posting the 3D source file > with instructions > how to render the various positions (that would be cool since everyone > could render their > own customtailored pixmaps). > > let us know, keep up with the good work. > > cheers, > Benno Hi Benno, I've played around creating 3D knobs using a combination of Povray, Perl and gimp-perl. Basically, you create a base file in povray, start gimp-perl server and then run the Perl script to create incremental images and convert them to whatever format you need. Some examples are here: http://members.optusnet.com.au/~adamjking/images/knobs/knobs.htm The scripting is a quick and dirty hack, but it work for me. Cheers, Adam

20 years, 3 months

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

by eviltwin69＠cableone.net

Sorry, you are correct. In JAMin it's center click. Jeez, I wrote it, I should know these things :-\ Jan On Wed, 9 Jun 2004 08:32 , Chris Cannam <cannam(a)all-day-breakfast.com> sent: >On Wednesday 09 Jun 2004 7:30 am, Richard Bown wrote: >> 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. > >Ah well here we go again then, an inconsistency. You certainly do >double-click to zero a fader, but (again I hadn't thought to try this >before, but now I just have) you right-click to centre a knob. And >that is centre, rather than reset to default, which seems odd. > >(btw, in JAMin it seems you actually middle-click, not right-click, to >reset a fader. At least in the version I have here.) > > >Chris

20 years, 3 months

Re: [linux-audio-dev] [OT] marketing hype

by Marek Peteraj

On Wed, 2004-06-09 at 22:37, Dan Hollis wrote: > i think its possible to get your point across without being a dick. > > sadly, you didn't do it. I always don't, you should already know that, i'm known for that ;) > > On Thu, 10 Jun 2004, Marek Peteraj wrote: > > > On Wed, 2004-06-09 at 13:17, Dave Griffiths wrote: > > > On Wed, 2004-06-09 at 21:11, Marek Peteraj wrote: > > > > What linux audio offers is > > > > technology. No comfort at all. Right now it's all just academic > > > > software. > > > > > > This, and the lack of marketing departments is exactly why I am here. > > > > > > I don't want to see linux apps turning into slickly hyped lifestyle > > > products like the rest of the music software business. We should push > > > the advantages we have, > > > > What advantages? Free as in beer? > > > > > rather than follow the path of steinberg etc... > > > > But you guys *are* following proprietary software in general. Ardour is > > a DAW just like cubase is, while SSM resembles reaktor in its > > philosophy. LADSPAs are plugins like VSTs are, etc etc etc. There's > > nothing which is perfectly original. > > > > I've never seen such inapt community btw, which is totally ignorant in > > organizing itself. See the gnome community which started to exist the > > same year. They have more conferences per year, one of them being > > huge(guadec) with sponsors, larger companies involved, and *most* of > > *all* they're a centralised community. > > > > What we have is tons of links and no information. Although there are > > some very good standards which could be successful even in another > > domain(e.g. jack), nobody cares to promote them. > > > > Lots of LADders even think that this mailing list isn't really > > important. Nobody cares that it actually represents a pretty central > > meeting point for developers interested in linux audio, and a perfect > > knowledgebase. > > > > We also have an organisation, which isn't really an organisation since > > it's not a legal entity, and about 2/3rds of all don't seem to even > > participate. And that organisation seems to have different goals than > > promoting and protecting linux audio in *general*, *whether* pro or not, > > i.e. the linux audio community. > > > > Centralising information and provoding easy access is a pretty good way > > to promote linux audio so that it reaches more developers and users, you > > don't need marketing hype for that. No matter if it concerns linux audio > > in general or ladspa plugins. > > > > The gnome community already provides that, the kde community aswell. > > Heck, there's even a linuxprinting.org community. Do i need to say more? > > > > > > > > Personally speaking, as a free software developer I don't care if my > > > programs are deemed as sucessful, they work for me, and handful of other > > > people - this makes me happy :) > > > > I'd like to see what other developers of the most popular linux audio > > projects think. Because if they share your opinion, i'd rather save some > > bucks and buy myself a mac. > > Linux audio is perfectly unusable for me. Currently. > > > > Marek > > > >

20 years, 3 months

[linux-audio-dev] Re: UI stuff

by Ben

On Wed, 2004-06-09 at 15:15, Ben wrote: > > Sounds interesting. This is what I do for a living. But would any > > of > > the linux audio developers actually follow it? > > You mean you're a usability engineer? > > Marek > Er, yes. In addition to graphics designer, programmer, tech supporter and occasional gofer. The audio industry is actually quite tiny. I doubt that ANY audio software company has a dedicated usability engineer. I've never seen such a position posted. The industry probably needs a usability standard but I would be very surprised if anybody actually followed the standard we produce. Everybody, by definition, is a usability expert in their own usage habits. But I'm willing to discuss it if anybody wants to bounce ideas around on- or off-list -Ben Loftis

20 years, 3 months

[linux-audio-dev] Re: UI stuff

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 >

20 years, 3 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. >

20 years, 3 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

20 years, 3 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

20 years, 3 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

20 years, 3 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

20 years, 3 months

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Linux-audio-dev