On Mon, 26 Nov 2007 20:25:33 +0000 James Courtier-Dutton <James@xxxxxxxxxxxxxx> wrote: > Rene Herman wrote: > > On 25-11-07 04:18, Mark Constable wrote: > > > >> There are a few online hearing test sites around, here > >> is one with 16/44.1 wavs. I can't hear 12kHz-0dB.wav :-( > >> > >> http://www.phys.unsw.edu.au/music/dB/loudness.html > > > > Word of warning -- the outcome here will significantly vary with the used > > soundcard, headphones and ofcourse _very_ much with how loud you crank up > > any on- or off-card amplifier. > > > > And eat your heart out... > > > > That 16 kHz -60dB is just about my threshold with good headphones, good card > > set to 0 dB and external amplication cranked up. -57 I hear always, at -60 > > it's a little flaky. At those levels, 12-0dB actively hurts... > > > > Rene. > > > > Ears are funny things. > 16 kHz might be just about your limit, but if you listen to more than > one tone mixed together you will hear a difference. > E.g. > 16 kHz you can hardly hear. > 8 kHz you can hear, but > 8 kHz mixed with 16 kHz will sound different from 8 kHz alone. > The real quality of a sound card and speakers comes with how it handles > more than one tone at the same time so that those mixed tones sound right. > > James > > > ------------------------------------------------------------------------- > 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 > A very good point. Furthermore, poor analog circuits really pollute everything with IMD, for example, the bass range. I witnessed this myself several years ago after my amplifier replacement. --Sergei. ------------------------------------------------------------------------- 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
