In 1972 Dolby Laboratories investigated techniques for measuring noise in professional and consumer audio equipment. A method giving agreement with subjective assessments was needed for use within the company and for exchanging information with outside organizations such as licensees. The study revealed that existing methods were unsatisfactory but that the use of the CCIR weighting characteristic with unity gain at 2 kHz in conjunction with an average responding meter (ordinary millivoltmeter) gave appropriate results. Practical details, circuitry, and applications are discussed.

Authors: Dolby, Ray; Robinson, David; Gundry, Kenneth J.
Affiliation: Dolby Laboratories, Inc., San Francisco, CA
JAES Volume 27 Issue 3 pp. 149-157; March 1979
Publication Date: March 1, 1979

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.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

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.