低延迟子带音频编码器(20hz - 15khz)，速度为64kbit /s

Proceedings of Third International Symposium on Time-Frequency and Time-Scale Analysis (TFTS-96) Pub Date : 1996-06-18 DOI:10.1109/TFSA.1996.547464

K. Hay, L. Mainard, S. Saoudi

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引用次数: 3

摘要

提出了一种在20 ~ 15000hz带宽下，以64kbit /s的速率对通用音频信号进行低时延编码的新方法。它结合了子带编码、低延迟CELP算法和级联滤波器组。我们展示了如何适应LD-CELP的不同参数以获得更好的质量，感知编码技术被集成到编码器中，用于将比特分配到每个子带。

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A low delay sub-band audio coder (20 Hz-15 kHz) at 64 kbit/s

a new method for coding generic audio signals at 64 kbit/s in the bandwidth 20-15000 Hz with a low delay is presented. It combines sub-band coding, low delay CELP algorithm and cascaded filterbanks. We show how the different parameters of LD-CELP can be adapted to achieve a better quality, perceptual coding techniques are integrated into the encoder for allocating bits to each sub-band.

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Proceedings of Third International Symposium on Time-Frequency and Time-Scale Analysis (TFTS-96)

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