结合语音和音频的判别编码

2000 IEEE Workshop on Speech Coding. Proceedings. Meeting the Challenges of the New Millennium (Cat. No.00EX421) Pub Date : 2000-09-17 DOI:10.1109/SCFT.2000.878435

L. Tancerel, S. Ragot, V. Ruoppila, R. Lefebvre

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引用次数: 26

摘要

本文提出了一种综合语音和音频编码的通用解决方案。特别地，我们描述了一个多模宽带编码的语音/音乐识别程序。只有当检测到低能量帧时，语音/音乐决策才会更新，否则保持不变。利用判别参数的二阶统计量对信号进行分类。演示了一种工作速度为16kbit /s的实验性CELP/变换编码器。结果表明，与单模编码相比，性能有所提高。

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Combined speech and audio coding by discrimination

We propose in this paper a general solution for combined speech and audio coding. Particularly, we describe a speech/music discrimination procedure for multi-mode wideband coding. The speech/music decision is updated only when a low-energy frame is detected, and kept unchanged otherwise. The signal is classified using second-order statistics of discriminant parameters. An experimental CELP/transform coder operating at 16 kbit/s is demonstrated. Results show improved performance when compared to single-mode encoding.

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来源期刊

2000 IEEE Workshop on Speech Coding. Proceedings. Meeting the Challenges of the New Millennium (Cat. No.00EX421)

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