SuperLectures.com

SPATIAL SOUND REPRODUCTION SYSTEMS USING HIGHER ORDER LOUDSPEAKERS

Spatial and Multichannel Signal Processing

Full Paper at IEEE Xplore

Presented by: Thushara D. Abhayapala, Author(s): Mark Poletti, Industrial Research Ltd, New Zealand; Thushara D. Abhayapala, Australian National University, Australia

Sound reproduction systems aim to produce a desired sound field over a region of space. At high frequencies, the number of loudspeakers required is prohibitive. This paper shows that the use of Nth order loudspeakers, in which each loudspeaker produces polar responses up to cos(N.phi) and sin(N.phi), produces accurate reproduction over N times the area of a first order array and can largely eliminate any exterior field. This allows a significant reduction in the number of loudspeaker units, at the expense of increased complexity in each loudspeaker unit.

  Speech Transcript

|

  Slides

Enlarge the slide | Show all slides in a pop-up window

0:00:16

  1. slide

0:00:28

  2. slide

0:01:15

  3. slide

0:02:33

  4. slide

0:04:00

  5. slide

0:04:35

  6. slide

0:05:00

  7. slide

0:06:03

  8. slide

0:06:19

  9. slide

0:07:18

 10. slide

0:07:35

 11. slide

0:08:39

 12. slide

0:09:45

 13. slide

0:10:38

 14. slide

0:10:44

    13. slide

0:11:05

    14. slide

0:11:51

 15. slide

0:12:19

 16. slide

0:12:52

 17. slide

0:13:29

 18. slide

0:13:56

 19. slide

0:14:28

 20. slide

0:14:54

 21. slide

0:15:21

 22. slide

0:15:54

 23. slide

0:16:08

 24. slide

0:16:23

 25. slide

  Comments

Please sign in to post your comment!

  Lecture Information

Recorded: 2011-05-25 14:25 - 14:45, Club A
Added: 14. 6. 2011 21:35
Number of views: 24
Video resolution: 1024x576 px, 512x288 px
Video length: 0:20:55
Audio track: MP3 [7.15 MB], 0:20:55