Computationally Efficient Amplitude Modulated Sinusoidal Audio Coding using Frequency-Domain Linear Prediction | M. G. Christensen, S. H. Jensen
| | Abstract | A method for amplitude modulated sinusoidal audio coding is
presented that has low complexity and low delay. This is based on a subband processing system, where, in each subband, the signal is modeled as an amplitude modulated sum of sinusoids. The envelopes are estimated using frequency-domain linear prediction and the prediction coefficients are quantized. As a proof of concept, we evaluate different configurations in a subjective listening test, and this shows
that the proposed method offers significant improvements in sinusoidal
coding. Furthermore, the properties of the frequency-domain linear
prediction-based envelope estimator are analyzed. | | Type | Conference paper [With referee] | | Conference | International Conference on Acoustics, Speech, and Signal Processing | | Year | 2006 | | BibTeX data | [bibtex] | | IMM Group(s) | Other |
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