On Mon, 26 Nov 2007 18:19:24 +0100Benoit Rouits <brouits@xxxxxxx> wrote: > Le dimanche 25 novembre 2007 à 18:26 +0300, Vladimir Mosgalin a écrit :> > That's the main reason why I asked - I heard that people can hear> > 22khz or about that when they are young, than listening gets worse and> > they don't hear very high frequencies anymore - and since I consider> > myself still young ;), I was kind of disappointed by the fact that I> > can't hear not only 22khz, but even 20khz, and when I discovered that> > I can't hear even 18khz, I was kind if scared - is my hearing going> > down due to headphone usage? Thanks for clarifying this issue.> > Theorically, A 44100 sampled audio CD can reproduce a triangle signal> at 22050 Hz. No, it can't. Draw timing diagrams with different relative phases of the signal andsampling frequencies. Your output will be 22050 Hz 50% duty cycle square wave whose amplitude(and polarity/phase) depend on the above relative phase. --Sergei. -------------------------------------------------------------------------This SF.net email is sponsored by: MicrosoftDefy all challenges. Microsoft(R) Visual Studio 2005.http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/_______________________________________________Alsa-user mailing listAlsa-user@xxxxxxxxxxxxxxxxxxxxxxxxxx://lists.sourceforge.net/lists/listinfo/alsa-user
