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
Parametric Representation of Multichannel Audio Based on Principal Component Analysis
Low-bit-rate parametric audio coding for multichannel audio is mainly based on Binaural Cue Coding (BCC). In this paper we show that the Unified Domain Representation (UDR) of multichannel audio, recently introduced, is equivalent to BCC scheme. We also discuss another method, called multichannel audio upmix, which classically converts existing two-channel stereo to five-channel audio. More precisely, we focus on existing PCA-based upmix method. Starting from PCA approach, we propose a general model that may be applied both to parametric representation of multichannel audio signals and upmix methods. Moreover, we apply the analysis results to propose a new low-bit-rate parametric audio coding method based on frequency subbands PCA processing.
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.