[linux-audio-user] Re: log sine sweeps

Hi Martin, Another mailinglist worth posting is music-dsp: http://music.calarts.edu/~glmrboy/musicdsp/music-dsp.html There you may often meet Angelo Farina, who has made available an amazing quantity of publications about Room Acoustics among other fields: http://pcfarina.eng.unipr.it/Public/Papers/list_pub.htm For your concern, let me quote the following one: "APLODSP, design of customizable Audio Processor for LOudspeaker system compensation by DSP", 109th AES Audio Convention, Los Angeles, 18-22 September 2000, http://www.ramsete.com/Public/Papers/147-AES00.PDF When it comes to Linux, you may already know the "Sound & MIDI Software For Linux" ressource site, which contains the following sections: - DSP Software: http://linux-sound.org/dsp.html - Scopes: http://linux-sound.org/scopes.html Not featured there for the moment, JAAA (the Jack and Alsa Audio Analyser), by Fons Adriaensen, will be presented at the 2nd International Linux Audio Conference, 29 April - 2 May 2004, ZKM Center: http://users.skynet.be/solaris/linuxaudio/ http://on1.zkm.de/zkm/stories/storyReader$3625#abstract_adriaensen02 If you want ISO-normalized linear or logarithmic swept sines, have your own series burnt with Reference Audio CD: http://refacd.sourceforge.net/ There are other techniques worth-using when it comes to getting room impulse responses, especially one based on MLS sequences, most of which you'll have compared on this document: "Comparison of different impulse response measurement techniques", G.-B. Stan, J.-J. Embrechts, D. Archambeau, Journal of the Audio Engineering Society, Vol. 50 (2002), n°4, pp. 249-262, http://www.montefiore.ulg.ac.be/~stan/ArticleJAES.pdf You can at last also check my Mozilla-generated bookmarks page, where you'll find most of the above, bearing in mind it is frequently subject to change: http://theremin.free.fr/hunchback/index.php?nodes=|0|1|50| This points you to the following nodes (remove the last prefix of the url in case of malfunction): + ArkaKlap + Kontenu + Kode (Dev Ressources) + Kours (Papers) + Koncurrence (Soft- & Hardware Ressources) I'll try to make Octave m-files (an opensource 95% Matlab clone) available by the end of May: MLS / swept sine generation, impulse response extraction, inverse filtering... Cheers, Christian Frisson