Because of the steep rolloff characteristic demanded, anti-aliasing filters as commonly implemented for digital audio systems introduce significant high-frequency delay. A tunable analog phase-shift filter which corrects for this time distortion has been developed and is presented. Correction may be done before or after digital processing. The audibility of the effect is discussed, and a phase-corrected 16-bit digital audio recorder used in gathering scientific audio data is described.
Author:
Meyer, John
Affiliation:
Meyer Sound Laboratories, Inc., Berkeley, CA
JAES Volume 32 Issue 3 pp. 132-137; March 1984
Publication Date:
March 1, 1984
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.