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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: Immersive posted by Duke on October 25, 2016 at 10:29:12:
From all that I've read it is the minimum delay desirable, not the absolute target.
Fortunately, sound travels at close to one foot per millisecond, which makes calculations easy. Thus with dipole speakers as Duke suggests, placement should be at least 5' out from the front wall. Then rear waves will travel to the wall and back even with the front of the speaker, delayed by at least 10 ms, before continuing on to the listener. That can maximize the spaciousness of dipoles.
Similarly in considering first reflection points from sidewalls, the distance from each speaker to the reflection point on the sidewall and then to the listener's ear should be 10' greater or more than the distance from the speakers directly to the listener for the desired perception separation.
When these distances out from the front wall or to the sidewalls cannot be achieved by physical placement then some form of treatment may substitute. Either dispersion (broad scatteration) or reflection elsewhere than the listener position can be added.
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Follow Ups
- About that 10 ms delay - M3 lover 10:27:55 10/27/16 (8)
- Excellent point - Duke 11:13:05 10/27/16 (7)
- It looks like your design will add reflections earlier than 10ms too - Dave_K 05:37:46 10/29/16 (1)
- A little bit, but the later reflections are many times stronger - Duke 11:31:40 10/29/16 (0)
- RE: Excellent point - Inmate51 22:47:49 10/28/16 (4)
- Importance of reflected sound delay - M3 lover 08:55:08 10/30/16 (0)
- RE: Excellent point - Duke 11:06:58 10/29/16 (2)
- Psycho - Inmate51 08:29:36 10/30/16 (1)
- Adjustability - Duke 11:43:24 10/30/16 (0)
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