Conference paper
Computationally Efficient Amplitude Modulated Sinusoidal Audio Coding using Frequency-Domain Linear Prediction
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.
| Language: | English |
|---|---|
| Year: | 2006 |
| Pages: | V-61-V-64 |
| Proceedings: | 2006 IEEE International Conference on Acoustics Speech and Signal Processing Proceedings |
| ISBN: | 142440469X , 142440469x , 1509091653 , 9781424404698 and 9781509091652 |
| ISSN: | 2379190x and 15206149 |
| Types: | Conference paper |
| DOI: | 10.1109/ICASSP.2006.1661212 |
Amplitude modulation Audio coding Chirp modulation Delay Distortion measurement Frequency domain analysis Frequency estimation Modulation coding Predictive coding Rate-distortion amplitude modulation audio coding computationally efficient amplitude modulated sinusoidal audio coding frequency-domain analysis frequency-domain linear prediction-based envelope estimator linear predictive coding modulation coding prediction coefficients sub-band processing system
