On 2007-11-27 12:22 pm, Rene Herman wrote: > Mmm, and now that I look at it again: > ampl = 32767.0 / pow(10, -dbfs / 20); > is the same as: > ampl = 32767 * pow(10, dbfs / 20); > which looks somewhat nicer. How about a copyright, license, contact and version info, and a bit of a readme in the header comments ? I'd like to package it and maybe try to wrap some kind of simple Qt4 GUI hearing test applet around it, one day. It would be really cool to have some proggie that could be run, every 3 months or so, to test ones hearing and keep the results in SQLite (or online) and also provide some kind of Jack/ALSA based EQ bias based on the stored results. Like, ultra cool. I recently got some good cans and a headphone amp and I am amazed at what I can now hear, and NOT hear, so it would be genuinely useful to have a custom EQ thingie that I could apply to any computer (at least) generated music that adapted to my failing ears over the years. A point is that these kind of "hearing tests" are almost useless in absolute terms but are indeed meaningful when tested and accumulated results are compared with for any particular individual. The consistent mean is to set up the listening environment to just be able to hear 1khz at (about, I forget the right level) -50db and then run the rest of the tests from that reference. As long as this reference marker is used for each testing session then the results can be reliable for that individual. --markc ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
