|
Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
|
|
|
Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
|
In Reply to: Re: Ultrasonic hearing posted by Ole Lund Christensen on June 16, 2005 at 04:17:27:
Kaoro and Shogo found that complex signals containing ultrasonics could be distinguished from ones without ultrasonics when the signals were reproduced by the same speakers. The also did a spectrum analysis and found that considerable IM distortion was caused in the audible range by the ultrasonics. When the ultrasonics were sent through separate speakers (presumably drivers), the IM distortion could not occur and nobody could hear the difference anymore. So, we have an explanation of why a difference is detected in DBTs which does not involve actually hearing ultrasonics.
____________________________________________________________
"Nature loves to hide."
---Heraclitus of Ephesus (trans. Wheelwright)
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: Ultrasonic hearing - Pat D 13:09:51 06/16/05 (16)
- You need to think again, the brain scans clearly shows detection, - Ole Lund Christensen 03:30:22 06/25/05 (0)
- Ahh, most interesting... - unclestu52 13:42:58 06/16/05 (14)
- Better? - Kal Rubinson 14:10:03 06/16/05 (13)
- If you haven't tried them - unclestu52 17:08:29 06/16/05 (12)
- Re: Very good analysis, I agree 100% - geoffkait 08:57:52 06/17/05 (0)
- I have heard them - Kal Rubinson 18:39:49 06/16/05 (10)
- which model have you listenend to? NT - unclestu52 19:56:57 06/16/05 (9)
- Doesn't matter. - Kal Rubinson 07:56:42 06/17/05 (8)
- Here's what's interesting.... - unclestu52 10:22:55 06/17/05 (7)
- Yet another scheme for dissipating RF on the speaker cable. - Al Sekela 14:19:23 06/17/05 (5)
- an addendum - unclestu52 13:37:40 06/24/05 (0)
- Re: Yet another scheme for dissipating RF on the speaker cable. - unclestu52 15:31:09 06/21/05 (3)
- Yes, you don't want to put the RF on the ground. - Al Sekela 17:09:39 06/21/05 (2)
- Re: Yes, you don't want to put the RF on the ground. - unclestu52 10:54:40 06/22/05 (1)
- That could work very well. - Al Sekela 16:57:44 06/22/05 (0)
- OK. - Kal Rubinson 11:08:34 06/17/05 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
