Journal article
Amplitude Modulated Sinusoidal Signal Decomposition for Audio Coding
In this paper, we present a decomposition for sinusoidal coding of audio, based on an amplitude modulation of sinusoids via a linear combination of arbitrary basis vectors. The proposed method, which incorporates a perceptual distortion measure, is based on a relaxation of a nonlinear least-squares minimization.
Rate-distortion curves and listening tests show that, compared to a constant-amplitude sinusoidal coder, the proposed decomposition offers perceptually significant improvements in critical transient signals.
Language: | English |
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Publisher: | IEEE |
Year: | 2006 |
Pages: | 389-392 |
ISSN: | 15582361 and 10709908 |
Types: | Journal article |
DOI: | 10.1109/LSP.2006.871856 |
Amplitude modulation Audio coding Distortion measurement Minimization methods Modulation coding Nonlinear distortion Rate-distortion Signal resolution Testing Vectors amplitude modulation arbitrary basis vector audio coding least mean squares methods linear combination nonlinear distortion nonlinear least-squares minimization parametric coding perceptual distortion measurement rate-distortion curve signal representations sinusoidal sinusoidal signal decomposition