On Sun, Jul 20, 2008 at 12:26:05PM +0200, Arnold Krille wrote: > I think truly flat responses is impossible with headphones. Depends on what you call 'the response'. For a headphone this would be ratio of the acoustic signal produced at the entry of the ear canal to the driving voltage. Now this must not be flat, at least not if you want to use the headphone with signals that sound good when reproduced by a speaker. The simple reason is that the response from the speaker to the entry of the ear canal is not flat, even if the free field response of the speaker is. More generally, expecting a headphone to work well with signals that are intended for speakers is sort of wanting the impossible. There should be a lot of processing between the two. In practice headphones are designed to be reasonable flat without any such processing, which means they are some pragmatic compromise. > Just compare the > sizes of your more-or-less flat response studio > speakers and the size of the average headphone. > A speaker with a diameter of only a couple of > cm has its resonance never in the range the > bass-driver of your studio-speakers. Nor does it have to move large quantities of air. But the most obvious difference that you listen to the near field over most of the frequency range, which is fundamentally different from a speaker. Ciao, -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia O tu, che porte, correndo si ? E guerra e morte ! _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
