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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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The loudspeaker placement method as proposed by Audio Physic (http://www.audiophysic.de/aufstellung/index_e.html) is based on the idea that source localisation is happening within the first 5 ms, after which first reflections are suppressed and don’t disturb any more. The basis for this method is very likely to be found in AES paper 4246 (http://www.aes.org/e-lib/browse.cfm?elib=7529) where it is said that for delays of 1- 5 ms a broadening of the image and sometimes image shift is occurring. Reflections in the sub 5 ms range should therefore be minimized. Reference is made to the chapter “Law of the first wavefront”in Blauert’s “Spatial hearing”, 1974 edition. I checked that chapter of the 1974 and 1983 editions and could not find any mentioning of such 5 ms window. Summing localization is mentioned, but the time window is about 1 ms, then the precedence effect takes over.
My question is, where could this 5 ms time window come from?
Klaus
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Topic - Early reflections: 5 ms time window for sound source localisation? - KlausR. 22:20:52 07/05/10 (30)
- RE: Early reflections: 5 ms time window for sound source localisation? - josh358 19:07:41 07/13/10 (12)
- RE: Echo threshold - KlausR. 08:41:52 07/20/10 (11)
- RE: Echo threshold - josh358 16:37:43 07/20/10 (10)
- RE: Echo threshold - KlausR. 05:22:32 07/23/10 (9)
- RE: Echo threshold - josh358 19:50:35 07/23/10 (8)
- RE: Echo threshold - KlausR. 06:35:26 07/28/10 (7)
- RE: Echo threshold - josh358 10:30:09 07/28/10 (6)
- RE: Echo threshold - KlausR. 23:14:06 08/03/10 (5)
- RE: Echo threshold - josh358 05:59:14 08/04/10 (4)
- RE: Echo threshold - KlausR. 22:35:03 08/11/10 (3)
- RE: Echo threshold - josh358 16:29:35 08/12/10 (2)
- RE: Echo threshold - KlausR. 22:03:04 08/20/10 (1)
- RE: Echo threshold - josh358 06:34:16 08/21/10 (0)
- RE: Early reflections: 5 ms time window for sound source localisation? - tomservo 07:22:53 07/06/10 (16)
- RE: Early reflections: 5 ms time window for sound source localisation? - KlausR. 01:30:12 07/08/10 (15)
- RE: Early reflections: 5 ms time window for sound source localisation? - tomservo 09:20:02 07/08/10 (6)
- RE: Early reflections: 5 ms time window for sound source localisation? - KlausR. 22:04:09 07/09/10 (2)
- RE: Early reflections: 5 ms time window for sound source localisation? - tomservo 10:26:49 07/10/10 (1)
- RE: Early reflections: 5 ms time window for sound source localisation? - KlausR. 00:30:05 07/12/10 (0)
- RE: Early reflections: 5 ms time window for sound source localisation? - Donald North 20:02:52 07/08/10 (2)
- RE: Early reflections: 5 ms time window for sound source localisation? - tomservo 14:45:18 07/09/10 (1)
- Outdoor listening - Donald North 15:37:45 07/09/10 (0)
- RE: Early reflections: 5 ms time window for sound source localisation? - Tony Lauck 09:11:19 07/08/10 (6)
- RE: Early reflections: 5 ms time window for sound source localisation? - tomservo 15:17:29 07/09/10 (0)
- RE: One can not have a high end system without a suitable room - KlausR. 09:06:56 07/09/10 (4)
- RE: One can not have a high end system without a suitable room - Tony Lauck 09:34:51 07/09/10 (3)
- RE: One can not have a high end system without a suitable room - KlausR. 04:15:31 07/10/10 (2)
- RE: One can not have a high end system without a suitable room - Tony Lauck 07:18:33 07/10/10 (1)
- RE: One can not have a high end system without a suitable room - KlausR. 00:50:22 07/11/10 (0)
- RE: Cabinet edge diffraction. - rick_m 07:11:17 07/08/10 (0)
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