Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015
Bandwidth Extension for Scalable Audio Coding
MPEG-4 BSAC has fine grain scalability functionality that bitstream can be truncated and decoded at any layer from one full bitstream. This fine grain scalability supports adaptive transmission and decoding according to user control, terminal specifications and network environment. In current BSAC scheme, however, as the transmitted layers become less and less the decoded output loses its high frequency signals and the sound quality becomes degraded. In this paper, A novel way was proposed which recovers the missing frequency signals when the decoded bitrate is lower than top bitrate. It provides full bandwidth at any bitrate below top bitrate and graceful degradation of sound quality in scalable reproduction. It also improves audio quality at low bitrate with top layer.
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.