|
Speaker Asylum General speaker questions for audio and home theater. |
|
|
|
Speaker Asylum General speaker questions for audio and home theater. |
|
In Reply to: Irrelevant for bass signals -- most bass energy already bounces off walls, floor and ceiling posted by Richard BassNut Greene on January 5, 2009 at 08:42:47:
The direct sound always arrives first and is always higher in level than the first reflections.
What you say about most bass being reflections and delayed is true of all frequencies, not just bass frequencies. That doesn't make the direct sound unimportant. Some parts of our perception are drawn from the direct sound and some from the reflected. The direct sound usually gives us our timing for a sound since it arrives first. Exceptions can occur when a later arrival is louder, which doesn't occur with individual reflections, or arrives after an exceptionally long delay which won't occur in a room. The fact that, in some cases, the reflected sound field can, in total, be louder than the direct sound is usually irrelevant in small room situations like ours because it simply isn't sufficiently louder than the direct sound for the direct sound to lose precedence and, in any case, the brain is taking information from individual reflections, especially the first ones which arrive as separate events with clear intervals between them.
And you said: "Also, there is no test evidence that any human can hear a 3 millisecond delay, much less a 1 millisecond delay, in the subwoofer frequencies under 100Hz."
That still misses my point. There can be other factors delaying the direct sound and they may not delay it enough to make the delay audible so we have an inaudible delay. Add another delay and you can end up with a total delay that is audible. An additional delay of 1 ms will, in the right circumstances, be enough to make the total delay audible so it is possible to notice the addition of a 1 ms delay. I never said it will happen every time but it can happen in some cases.
David Aiken
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Sorry, relevant… - David Aiken 12:17:11 01/05/09 (3)
- I once shot a relevant in my pajamas … - Richard BassNut Greene 08:38:05 01/06/09 (2)
- I hope you missed whatever else was also in your pajamas … - David Aiken 12:32:51 01/06/09 (1)
- "And you keep missing the point " -- you have no point ! - Richard BassNut Greene 17:14:13 01/06/09 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
