Linux-audio-user November 2004

linux-audio-user@lists.linuxaudio.org

188 participants
181 discussions

[linux-audio-user] Noob question about soundfonts & synths

by Mark Wilson

Looked at hammersound.net, downloaded a couple of .sf2's, successfully loaded with qsynth, played with cool sounds in rosegarden4 and with plain ol' pmidi on the CLI. Having lots of fun! :-D The question: what's a pad, in the context of softsynths? TIA, Mark ===== -- Seek professional help! Ask a librarian. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 6 months

[linux-audio-user] [ANN] DSSI 0.9 released

by Chris Cannam

DSSI v0.9 released ================== I'm happy to announce version 0.9 of the DSSI plugin API. http://dssi.sourceforge.net/ DSSI is an audio plugin API designed for software instruments with custom user interfaces. DSSI is based on the LADSPA effects plugin API, the ALSA sequencer event types, and OSC (Open Sound Control) communications. It's intended to be easily understood, GUI-toolkit-agnostic, and slightly biased towards familiarity with MIDI. The DSSI distribution package contains a JACK/ALSA-sequencer reference host and some plugins as well as the specification and header. DSSI 0.9 was constructed by Steve Harris, Chris Cannam, and Sean Bolton. New in 0.9 ---------- The main improvements in 0.9 are to the reference host implementation and sample plugins. The 0.9 API itself is binary compatible with the previous 0.4 release. A new convention for plugin-global (rather than instance-local) configuration data and a convention for setting a plugin's project working directory have been introduced, and 0.9 clarifies certain implementation points in the documentation. Available hosts and plugins --------------------------- Two hosts are currently known to include complete or nearly-complete DSSI support: the reference jack-dssi-host included in the DSSI 0.9 distribution, and versions 0.9.9 and later of the Rosegarden-4 sequencer. Currently available plugins include: * a FluidSynth soundfont plugin included in the DSSI distribution * Xsynth-DSSI, an analog-style (VCAs-VCF-VCO) plugin * dssi-vst, a wrapper plugin enabling the use of many Windows VST instruments and effects * hexter, a Yamaha DX7 modeling plugin * three smaller example plugins (two synths and a sampler) that are also part of the DSSI distribution.

20 years, 6 months

[linux-audio-user] Interactive Sound Piece for Pd

by Frank Barknecht

Hi, I'm pleased to announce an interactive sound piece done for Pure Data (Pd). [1] The piece consists of an idealized physical model - idealized in the sense, that friction is simplyfied to binary values 0 and 1 - where up to two Interactors are expected to influence one degree of freedom they are given, being helped by visual and acoustic feedback. The aural experienced is enhanced through incorporating the Poldy(tm) 1D Surround Sound System, which presents a moving, self-referencing fractal unit generator. Have fun with the download at: http://footils.org/cms/show/27 [1] Pd is available at: http://crca.ucsd.edu/~msp/software.html Ciao -- Frank Barknecht _ ______footils.org__

20 years, 6 months

[linux-audio-user] calling open source artists/musicians (UK London area)

by Dave Griffiths

Hi all, A couple of us are thinking of putting together an open source focussed music and visual performance night in London (UK), with the aim of making it a semi regular event with a bit of a workshop feel to it - so people can share ideas and have some fun. We're just wondering what the interest for such an event would be, whether people would be interested in participating, or indeed if there is already something going on we've missed. Also if people are already doing similar nights in other places, if you have any tips. You can contact us directly at: leechun(a)leechun.freeserve.co.uk dave(a)pawfal.org or reply to the list... cheers, dave

20 years, 6 months

[linux-audio-user] QSynth/fluidsynth having problems with looped soundfonts

by ico＠fuse.net

Hi all, Just a quick question before my tomorrow's presentation. I am hoping to be able to present fluidsynth/Qsynth but one of the issues I encountered using two different versions of fluidsynth and a number of soundfonts is that the sound of soundfonts is fine until they begin to loop (i.e. long flute sound eventually starts to loop the sample) and then at every loop cycle there is a kind of a clicking noise as if the loop points are either badly designed (unlikely, since I tried 5 different soundfonts that were downloaded from different places), there is something weird with the tested versions of fluidsynth, or this is a bug? Any help is greatly appreciated! Best wishes, Ico

20 years, 6 months

[linux-audio-user] Linux and Standards

by Ivica Ico Bukvic

Hi all, As some of you may already know, I am going to present a paper/demo at the upcoming ICMC 2004 conference in Miami on Linux titled: Linux as a Mature Digital Audio Workstation in Academic Electroacoustic Studios – Is Linux Ready for Prime Time? As promised I will be posting an expanded version of the paper online right after the presentation that is slated for the Wednesday next week. I would like to use this opportunity to thank all the members of this wonderful community for their insight and help in making my final paper as accurate and objective as possible. Furthermore, I would like to thank everyone involved in the development of audio software for the GNU/Linux platform because without you none of this would've been possible. Finally, just a couple days ago I was invited to serve as one of the panel members on Matthew Wright's discussion titled "Standards From the Computer Music Community" that will take place on Saturday November, 6. He wants me to present the Linux audio community's angle on standards and considering that this conference encompasses faculty as well as researchers and programmers from all across the World, I feel that this is a perfect opportunity to voice out our angle on the given topic and perhaps that way further expose the strengths that Linux can offer. I would like to share with you a short overview of my thoughts on this issue and would like to encourage those of you who may have additional thoughts to please send me your suggestions and/or corrections. Your help in this matter is most appreciated! However, please bear in mind due to fact that I am leaving for the conference on Sunday afternoon and am not sure how regularly (if at all) will I be able to check my e-mail while away from home, I would really appreciate it if you would please send me your responses before Sunday 2pm or so. I would of course appreciate also belated comments just in the case I do get to check my e-mail, I just cannot guarantee I'll get to read them prior to the presentation. My sincere apologies for the unusually short window of opportunity. At any rate, here's my blurb: ---------------------------------------- My initial presentation will be limited to 5-7 minutes since panel will consist of a number of members. Following everyone's initial presentation, there will be a discussion driven in part by the questions from the audience. LINUX AS A STANDARD I feel that considering linux as a standard is on one hand a kind of a paradox as it is built on the premise that individual truly can tweak it to heart's content and therefore it is relatively unlikely that any two Linux boxes would look and/or perform the same. Yet, on the flip-side of the coin Linux stands as a most successful offspring of the GNU movement and as such it is the most revolutionary and therefore the standard-setting OS in a category where it has no competition. Furthermore, this diversity it offers perhaps stands in its own light as a kind of a standard offering the end-user to shape their computer as a personalized instrument. PLANET CCRMA/DeMuDi/THAC'S RPMS/AUDIOSLACK The diversity seemingly suggests lack of standards, yet the software packages in most cases seamlessly compile on various distributions. This diversity is simply a byproduct of the diversity of the commercial Linux distributions. This is where lies perhaps the biggest problem with Linux, and that is the issue of different file tree across the different distributions which introduces hurdles for the "compile-from-the-source" crowd and in part feeds the demand for the prebuilt distros and subsequent fragmentation (a vicious circle if you like). KERNELS There is no "standard" audio kernel even though some of the kernel releases in conjunction with patches yield better performance. This diversity is however irrelevant as most of the applications work just fine on different sub-versions of the same kernel without a recompile. Therefore such disparity is more of a nuisance for the end-user than a potential standard-breaking anomaly. Furthermore the fix for such disparity is provided via aforementioned distributions. APPLICATIONS The powerful thing about Linux is that while everyone is welcome to contribute their own ideas or even design their own applications from ground-up, the strongest concepts rather than most developed applications are the ones who set the standard (i.e. JACK, ALSA, etc.) which is not always the case with the commercial proprietary World where often PR plays a critical role (i.e. VHS vs. BETAMAX -- although this is not the best example as this is not software-related but you get my point). Eventually, the strongest concepts do become also the most developed ones, but due to the fact that the source is readily available and that other developers choose to implement and therefore support those interfaces which look most promising, should there ever a new standard arise it will always have the chance to rise and overcome the leading standard, no matter how well the leading standard is established, and will likely do so in a least painful fashion for the end-user (i.e. ALSA vs. OSS as opposed to OS9 vs. OSX transition). Finally, open-source nature of the software minimizes the potential for misrepresentation of the format's features (a.k.a. false advertising in the commercial world). This is where Linux truly shines. That being said, Linux has its own share of disparate formats which impede the development of a standard (i.e. every sequencing software has a different format for saving the sessions). However, it is my feeling that this is simply a transitional phase and in due time the strongest will prevail. As far as the standard or core applications of the Linux community are concerned, I really do not wish to go there as that may spawn heated discussion which may completely detract from my goals. Besides, it is exactly this individualized preference that drives the diversity in Linux's software offering. AUDIO-RELATED STANDARDS THAT CAME FROM LINUX COMMUNITY (in no particular order -- it's 3am, give me a break ;-) Jack, LADSPA, LASH, ALSA, Ogg/Vorbis, others? (Lash is especially interesting as it is designed to unite seemingly different standards under one umbrella session controlling mechanism which is something unique for the Linux platform -- other proprietary formats are imho harder to unite under such a meta-standard, if you like, because they are often conceived to work just by themselves and do not necessarily encourage efforts from various competitive companies to conform to them; they rather come up with their own standard unless the existing standard is too strong to compete with which in either case results in a less adequate solution for the end-user) What is both interesting and in part detrimental (at least in short-term) to the Linux audio community is that many formats due to their openness are not readily supported by the proprietary world as they have no profit-making value (i.e. Apple's DRM-ed AAC is safeguarded by Apple so that they can profit from licensing it to other companies and/or locking in their iTunes/iPod market). One final remark on Linux standards as a whole is that Linux holds an upper hand when it comes to longevity of their standards as they are not encumbered by the IP limitations imposed by a particular company and therefore directly dependant on the company's longevity. ---------------------------------------- Sorry for the messy spill of thoughts, hopefully you'll get the main points of my ideas. I am just too tired at this point to try to clean-up my prose. I would really appreciate your thoughts as well as any potential additions you may have. Many thanks! Best wishes, Ivica Ico Bukvic, composer & multimedia sculptor http://meowing.ccm.uc.edu/~ico/ --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.784 / Virus Database: 530 - Release Date: 10/27/2004

20 years, 6 months

[linux-audio-user] Re: jack - could not attach as client

by rob canning

> Well, if you used a jack package shouldn't jack be in /usr/bin then? Do you > maybe have two different versions of jackd and libjack [one in /usr and one > in /usr/local]? This often leads to trouble.. > > flo yes, that was the problem - thank you. rob

20 years, 6 months

[linux-audio-user] Full version of the ICMC2004 paper now available for download

by Ivica Ico Bukvic

Hi all, It is my pleasure to announce immediate availability of the expanded version of the ICMC 2004's paper "Linux as a Mature Digital Audio Workstation in Academic Electroacoustic Studios – Is Linux Ready for Prime Time?" It can be obtained directly from the following link: http://meowing.ccm.uc.edu/~ico/Papers/ICMC2004-full.pdf I would also like to use this opportunity to thank all who helped make this paper better as well as all of you who have made very insightful comments and/or suggestions regarding the upcoming presentation on music standards. I've written down your thoughts and will incorporate them in my speech as soon as my other presentations are over with. For those interested, the paper on Linux will be presented tomorrow at noon. Best wishes, Ivica Ico Bukvic, composer & multimedia sculptor http://meowing.ccm.uc.edu/~ico/ --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.784 / Virus Database: 530 - Release Date: 10/27/2004

20 years, 6 months

Re: [linux-audio-user] WMA

by Alejandro Lopez

That's excellent Marc, thanks a lot. Cheers, Alex >I think that the answer is: >apt-get install w32codecs >apt-get install mplayer > >then i've got some scripts to decompress wma and compress in ogg >I attach them to make your life easier _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.com/

20 years, 6 months

RE: [linux-audio-user] Re: [linux-audio-dev] How toautomatehdsploader

by Alejandro Lopez

Hi, AFAIK, ASIO is the name that Windows' low latency audio technology is getting. Linux features a similar approach via ALSA (as for low latency functionality). A hardware manufacturer stating that a particular product is compliant with ASIO means there's an ASIO driver (Windows) available for this product. Cheers, Alex >Just out of curiosity: just what makes something ASIO compliant? Is it >mearly a spec that has to be met or is there more to it than that? I've >never really been able to find anything about just what ASIO is. It has >seemed to be more of a buzz word used in the marketing of PC/MAC sound >hardware than anything else. JACK used to have ASIO mode didn't it? Was it >just a pointless option that was dropped? _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar - get it now! http://toolbar.msn.com/

20 years, 6 months

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Linux-audio-user November 2004