Title :
Stereo and multichannel audio coding with room response compensation for improved coding transparency
Author :
Bartkowiak, Maciej
Author_Institution :
Inst. of Electron. & Telecommun., Poznan Univ. of Technol., Poznan, Poland
Abstract :
The paper presents a very simple enhancement of joint coding of stereo and surround channels within a perceptual audio codec. Moreover, the paper proposes two improvements to standard parametric stereo and spatial audio compression in order to avoid the smearing of transients in the process of channel downmixing. The improvements consist in compensating of inter-channel delays prior to mixdown, as well as additional encoding of the room response for realistic reconstruction of the stereo ambience.
Keywords :
audio coding; codecs; improved coding transparency; inter-channel delays; multichannel audio coding; parametric stereo compression; perceptual audio codec; room response compensation; spatial audio compression; stereo ambience; stereo audio coding; stereo channels; surround channels; Abstracts; Codecs; Decorrelation; Delays; Filter banks; Transforms;
Conference_Titel :
Signal Processing Conference, 2006 14th European
Conference_Location :
Florence
