Re: [LAU] headphones

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To: <linux-audio-user@...>
Date: Sunday, July 20, 2008 - 11:21 am

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

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 !

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Messages in current thread:
[LAU] headphones, schoappied, (Wed Jul 16, 1:53 pm)
Re: [LAU] headphones, Florin Andrei, (Wed Jul 16, 9:21 pm)
Re: [LAU] headphones, Paul Coccoli, (Thu Jul 17, 11:29 am)
Re: [LAU] headphones, Florin Andrei, (Thu Jul 17, 10:48 pm)
Re: [LAU] headphones, The Other, (Fri Jul 18, 1:11 pm)
Re: [LAU] headphones, Florin Andrei, (Fri Jul 18, 6:08 pm)
Re: [LAU] headphones, Arnold Krille, (Fri Jul 18, 8:38 pm)
Re: [LAU] headphones, Fons Adriaensen, (Fri Jul 18, 9:08 pm)
Re: [LAU] headphones, lynne shorthose, (Sat Jul 19, 5:36 am)
Re: [LAU] headphones, Florin Andrei, (Sat Jul 19, 11:52 pm)
Re: [LAU] headphones, porl sheean, (Sun Jul 20, 12:01 am)
Re: [LAU] headphones, Arnold Krille, (Sun Jul 20, 10:26 am)
Re: [LAU] headphones, Florin Andrei, (Mon Jul 21, 7:56 am)
Re: [LAU] headphones, schoappied, (Tue Jul 22, 9:48 am)
Re: [LAU] headphones, Fons Adriaensen, (Sun Jul 20, 11:21 am)
Re: [LAU] headphones, Florin Andrei, (Sun Jul 20, 12:32 am)
Re: [LAU] headphones, pete shorthose, (Sat Jul 19, 5:38 am)
Re: [LAU] headphones, Florin Andrei, (Wed Jul 16, 8:07 pm)
Re: [LAU] headphones, schoappied, (Thu Jul 17, 8:36 am)
Re: [LAU] headphones, Florin Andrei, (Thu Jul 17, 10:14 pm)
Re: [LAU] headphones, schoappied, (Thu Jul 17, 8:08 am)
Re: [LAU] headphones, Florin Andrei, (Thu Jul 17, 9:56 pm)
Re: [LAU] headphones, c_r, (Thu Jul 17, 3:25 am)
Re: [LAU] headphones, Jeff Sandys, (Wed Jul 16, 6:55 pm)
Re: [LAU] headphones, schoappied, (Thu Jul 17, 2:37 pm)
Re: [LAU] headphones, Mark Knecht, (Thu Jul 17, 3:01 pm)
Re: [LAU] headphones, Florin Andrei, (Thu Jul 17, 9:54 pm)
Re: [LAU] headphones, Mark Knecht, (Thu Jul 17, 10:35 pm)
Re: [LAU] headphones, schoappied, (Fri Jul 18, 9:32 am)
Re: [LAU] headphones, Mark Knecht, (Fri Jul 18, 1:48 pm)
Re: [LAU] headphones, Mark Knecht, (Wed Jul 16, 3:54 pm)
Re: [LAU] headphones, schoappied, (Wed Jul 16, 4:16 pm)
Re: [LAU] headphones, Mark Knecht, (Wed Jul 16, 5:12 pm)
Re: [LAU] headphones, Reuben Martin, (Wed Jul 16, 4:49 pm)
Re: [LAU] headphones, c_r, (Wed Jul 16, 7:35 pm)
Re: [LAU] headphones, Mark Knecht, (Wed Jul 16, 7:57 pm)