Linux-audio-dev

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7516 discussions

by Jens Gulden

Hello, there now is a mailing list for JJack, the Java bridge API for JACK. This was suggested by Esben Stien. Maybe the list will grow to become a helpful source of information about JJack. You are invited to register at https://lists.berlios.de/mailman/listinfo/jjack-users. Jens

19 years, 2 months

[linux-audio-dev] [ANN] QLoud v.0.14

by Andrew Gaydenko

QLoud is a tool to measure loudspeaker frequency response. Find it here: http://gaydenko.com/qloud/ Changes: - a crash (hitting "Plot" with empty IR list) is fixed, - pickers values are rounded now, - multiple minor fixes and cleanup, - now "Window, msec" is a time from IR peak to cutted reverberations, which is more intuitive, I think (earlier it was equal to applied window width itself). Direct screenshot links: - main window with few SPL plots: http://gaydenko.com/qloud/screenshots/shot01.png - IR-power plot: http://gaydenko.com/qloud/screenshots/shot02.png Andrew

19 years, 2 months

[linux-audio-dev] job offer... [Fwd: Algorithm Development Manager (Full-Time)]

by Joern Nettingsmeier

hi guys! i got this job enquiry to my private address, forwarding it here in case anyone's interested. i don't know any details about this, please get back to the original author if you have any questions. regards, jörn -------- Original Message -------- Subject: Algorithm Development Manager (Full-Time) Date: Fri, 25 Aug 2006 14:04:35 +0200 (CEST) From: Sandy Perlman <sp(a)i-perlman.com> To: <nettings(a)folkwang-hochschule.de> I am a working with a Silicon Valley (Mountain View, CA) company that is looking for an Algorithm Development Manager. This is a fulltime role. I would appreciate any referrals. Our client provides advanced noise suppression solutions for enhanced voice communication to the mobile, VOIP, PC and auto markets. Their proprietary technology, derived from human hearing biology, allows the complete removal of the most difficult and distracting noises from voice, enabling clear communication and greater network efficiency. The Manager of Algorithm Development, reporting to the VP of Engineering, will be responsible for leading and managing all algorithm development functions. Responsibilities include overseeing the creation, development, and design of the algorithms that form the basis for the company's exciting leading-edge products. This manager will actively participate in product definition, manage the team's deliverables effectively and efficiently, and work extensively with the platform and test teams to deliver product to the market. Experience required: Proven track record developing and shipping embedded software or IC products in the areas of Audio Signal Processing, Speech Enhancement, Speech Coding, Noise Reduction, or Acoustic Echo Cancellation, including algorithm development and integration, and software development. At least 2 years of experience managing signal processing or audio product development efforts from concept to production, leading a team of engineering personnel ranging from architect to entry-level engineers. Successful experience recruiting, motivating and retaining high quality engineering personnel Effective interaction with other departmental functions such as test teams marketing etc... Proven ability to effectively communicate with customers, peers and team members. Qualifications: Minimum 5 years audio/signal processing engineering experience. Minimum MS, At least 3 years experience in engineering management. Strong track record in delivering to schedules. Knowledge of patent writing and understanding of IP protection. Experience with customers, vendors, and third party relationships. Excellent communication skills, written and verbal, good presentation skills and meeting facilitation skills. If you know someone that would be a good fit, please forward this email to him or her. If you want to apply, reply to this email with your resume. For more information, send an email to info(a)ctsearch.com. Sandy Perlman Principal & Senior Recruiter, BSEE 408-723-0560 http://www.ctsearch.com https://www.linkedin.com/in/sandyperlman In business since 1989, CTSearch is an independent high technology search firm that specializes in placing technical professionals into high technology companies.

19 years, 2 months

[linux-audio-dev] plug:jack device channel-count

by carmen

> Yes, but what would be even more useful is to report this to the > sweep developers. done. as it turns out, theres a divide-by-zero on alsahandle->num_channels or similar. ive noticed other ALSA apps will also fail with plug:jack (notably Twinkle) with an error very similar (eg, no available channels for opening), while others such as Ekiga or those using GStreamer, have no problems with plug:jack. are these apps working around it by trying to open channels even if the number available is reported to be 0? maybe this is a bug in jack:plug for not making up a number like at least 2, if alsa_pcm devices exist in jack..

19 years, 2 months

[linux-audio-dev] Kokkini Zita

by Fons Adriaensen

(Since this was rejected on LAA ('no reason given'), I'll answer the question here.) On Mon, Aug 14, 2006 at 09:20:36PM +0400, Andrew Gaydenko wrote: > What do "Kokini Zita" words mean? I have thought, Fons Adriaensen is the author > of the listed apps :-) It should be "Kokkini" (with 2 k's in the middle) actually. It's indeed Greek and means 'red zita', where zita is the name in modern Greek for the character traditionally known as 'zeta'. So I'll be using a red zeta as a logo. There some word play involved as well. Zita is also a girl's name, and there exists a Flemish comic series in which a character called 'rode Zita' (red Zita) appears. She's the red-haired and voluptuous girlfriend of the hero - a sort of Robin Hood like character whose gang of outcasts is constantly pestering the French soldiers that occupied Flanders 200 years ago. -- FA Lascia la spina, cogli la rosa.

19 years, 2 months

[linux-audio-dev] Linux kernel HZ, audio latency and how to measure?

by Mulyadi Santosa

Hello everyone.... I am kinda interested to study the effect of changing kernel HZ (internal timer frequency) and the audio processing. Since I am a newbie in Linux Audio, I will be glad to receive any comments, especially the constructive ones. Is there any relationship between kernel HZ and audio timing? I imagine that something like audio recording from a Hi Fi will get a benefit from a finer granularity timer frequency, since it can achieve 1ms (or even smaller) resolution. But, if there is relationship between those two, then how to measure it? Do I need to check every delay function and record the requested delay vs the actual delay? Or is there other method? I already searched the archieve looking for the similar question, but I found none. Thank you in advance your help and attention. regards, Mulyadi

19 years, 2 months

[linux-audio-dev] [ANN] Csound 5.1.00.0 beta1 ("alternative" version) release

by Istvan Varga

Source and binary packages, and documentation can be downloaded from here: http://sourceforge.net/project/showfiles.php?group_id=167991 Change log and release notes are attached. You can subscribe to the new mailing lists created for this project at these pages: http://lists.sourceforge.net/mailman/listinfo/csound5-devel http://lists.sourceforge.net/mailman/listinfo/csound5-user

19 years, 2 months

[linux-audio-dev] JACK MIDI <-> ALSA Sequencer link?

by David Olofson

Is there such a thing? (Could be implemented as a JACK + ALSA sequencer client, I suppose.) Or is there some other way of wiring JACK MIDI ports to ALSA sequencer ports and/or vice versa? //David Olofson - Programmer, Composer, Open Source Advocate .------- http://olofson.net - Games, SDL examples -------. | http://zeespace.net - 2.5D rendering engine | | http://audiality.org - Music/audio engine | | http://eel.olofson.net - Real time scripting | '-- http://www.reologica.se - Rheology instrumentation --'

19 years, 2 months

[linux-audio-dev] all your face are belong to audicle (source released!)

by Ge Wang

Hi! The Audicle source code is finally released (GPL). Now audicle can be built to run and crash on Linux systems in addition to Windows and OS X. http://audicle.cs.princeton.edu/ Additionally, there is now formal documentation for the Audicle: http://audicle.cs.princeton.edu/doc/ http://audicle.cs.princeton.edu/doc/faces/ Also, there is now a miniAudicle for linux: http://audicle.cs.princeton.edu/mini/ The command line ChucK and friends (most stable and full-featured option for linux currently): http://chuck.cs.princeton.edu/ http://chuck.cs.princeton.edu/doc/ http://chuck.cs.princeton.edu/community/ Since this is the first source release and effectively the first release for Linux, there is probably plenty of bad voodoo lurking in the build and beyond. Please let us know if you run into anything fishy or outright wrong. Feedback is most appreciated, and feel free to call us idiots. Finally, major thanks to Graham Coleman, Shawn Shaknitz, Scot Gresham- Lancaster, Gary Scavone, and the wonderful people of PLOrk (http:// plork.cs.princeton.edu/people.html). Thanks! Happy ChucKing. Best, audicle team (Perry, Phil, Ananya, Spencer, Scott, Ge, etc...)

19 years, 2 months

[linux-audio-dev] Which sequencer framework for a simple MIDI drum looper ?

by _ langagemachine

Hello. I write hoping that some nice LADs might enlighten me ? I've been feeling a recent itch to write a simple step-sequencer, which outputs MIDI messages to the ALSA seq ; it is intended to drive a drum machine. My ideal app is provided with a graphical UI which includes HUGE buttons (to give you an idea, the GUI in FL Studio comes to mind). It may seem silly at this point, but I could not find an existing app which exactly suits me. But anyway, I think it will be a piece of fun trying to write something myself... I shamefully admit being no good at C/C++ programming, but I could write some GUI code in Python/Java, which would communicate with the sequencer engine, over OSC for example. Regarding said sequencing engine, I have found 3 possibilities so far : - Chuck http://chuck.cs.princeton.edu/ - Midishare (can be driven in Java, Lisp, ...) *provided that I can get it to compile on my Gentoo box ... http://midishare.sourceforge.net/ - Milk (Python MIDI engine for ALSA) http://www.quitte.de/milk.html: The former two seem slightly more complete ; in particular, I very much liked Breakage, which uses Chuck : http://www.blackholeprojector.com/ (Actually, this app would have been a very good fit, but it is Windows/Mac only :-o) I'll finally make my point : which framework would - in your experience - be the most practical to use ? Or the most interesting to learn ? Many thanks for your attention. NB : I am aware that Hydrogen is one fine app ;-), and probably a step sequencer can be written as a Pd patch in seconds, but that is not what I am after at the moment ; I insist on the user interacting with big, Playschool-like BLOCKS :-)

19 years, 2 months

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Linux-audio-dev