Journal Forum

Synthetic Reverberator - January 1960
1 comment

Multichannel Sound Reproduction Quality Improves with Angular Separation of Direct and Reflected Sounds - June 2015
1 comment

Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015

Access Journal Forum

AES E-Library

Bit-Rate Saving in Multichannel Sound: Using a Band-Limited Channel to Transmit the Center Signal

Document Thumbnail

A method is proposed to achieve full-frequency-range three-channel (left, right, and center) sound reproduction in systems that have only two full-range sound channels and some band-limited commentary channels. The low-frequency part of the center signal, which matches the bandwidth of the commentary channels, is added to the (multilingual) speech signals in each of the commentary channels. The remaining high-frequency part is added in the left and right channels as in conventional mixdowns. Sound reproduction of this signal by a conventional two-channel receiver remains unaltered. The low-frequency part of the center signal is mixed to the left and right signals together with the speech once the user has selected a commentary channel. Three-channel reproduction is obtained by routing the selected commentary channel to a central loudspeaker. Listening tests revealed that sound reproduction according to the proposed scheme could not be distinguished from original three-channel reproduction. This scheme can be applied to proposed standards such as D2MAC and MPEG2.

JAES Volume 42 Issue 7/8 pp. 555-564; July 1994
Publication Date:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society