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A novel hierarchical multi-channel coding scheme is proposed which exhibits a significant decrease in decoding complexity compared to earlier proposals. The new coding scheme is based on a single channel downmixing process followed by predictions of the multichannel input signals. Symmetries in the prediction filter coefficients and the prediction errors allow for a reduced number of channels which...
Coding of wideband (7kHz) speech and audio signals is one of the currently predominant research topics in source coding, driven by evolving, new applications in high-quality communication systems and by standardization activities in ITU-T and ETSI. This article deals with basic concepts from both traditional speech and audio coding and their implications for wideband signals. An overview on the state...
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