Re: [LAU] Where do the 60 degrees for stereo come from?

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To: <linux-audio-user@...>
Date: Thursday, June 16, 2011 - 8:35 pm

On Thu, Jun 16, 2011 at 10:11:25PM +0200, Philipp wrote:

Just what you suggest: it leads to an equilateral triangle and
that *suggests* there is something fundamental about it. But as
far as I know there isn't. Another reason may be that +/- 30
degrees corresponds to the perspective of an average listener
in a concert hall - probably more than say +/- 45 degrees.

OTOH, a recording technique like e.g. Blumlein (two fig-8 mics
at 90 degrees) would suggest a speaker angle of 90 degrees
instead.

A wider angle will make near-center sources less stable. The
number that matters here is the magnitude of the velocity
vector which is cos(1/2 the angle): 0.866 for 60 degrees,
0.707 for 90 degrees, while for a 'real' source it would be 1.

Ciao,

--
FA

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Messages in current thread:
Re: [LAU] Where do the 60 degrees for stereo come from?, Fons Adriaensen, (Thu Jun 16, 8:35 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Philipp Überbacher, (Fri Jun 17, 8:58 am)
Re: [LAU] Where do the 60 degrees for stereo come from?, Fons Adriaensen, (Fri Jun 17, 5:48 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Philipp Überbacher, (Fri Jun 24, 11:58 am)
Re: [LAU] Where do the 60 degrees for stereo come from?, Fons Adriaensen, (Fri Jun 24, 1:13 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Charles Henry, (Mon Jun 20, 9:41 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Fons Adriaensen, (Mon Jun 20, 10:33 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Philipp Überbacher, (Thu Jun 16, 8:56 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Julien Claassen, (Thu Jun 16, 8:21 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Philipp Überbacher, (Thu Jun 16, 8:41 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Karl Hammar, (Fri Jun 17, 12:45 pm)
Re: [LAU] Where do the 60 degrees for stereo come from?, Monty Montgomery, (Thu Jun 16, 8:43 pm)