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Efficient quantization of speech spectral amplitudes based on optimal interpolation technique

机译:基于最优插值技术的语音频谱幅度有效量化

摘要

A speech coding algorithm interpolates groups speech frames into speech frame pairs, and quantizes each frame of the pair according to a different algorithm. The spectral amplitudes of the second frame are quantized by dividing them into two portions and quantizing one portion and then quantizing a difference between the two portions. The spectral amplitudes of the first frame of the pair are quantized by first converting to a fixed dimension, then interpolating between previous and subsequent frames, then selecting interpolated values in accordance with a mean squared error approach.
机译:语音编码算法将语音帧组内插为语音帧对,并根据不同的算法对语音帧对中的每个帧进行量化。通过将第二帧的频谱幅度分为两部分并量化一个部分,然后对这两个部分之间的差异进行量化,可以对第二帧的频谱幅度进行量化。通过首先转换为固定维度,然后在前一帧和后续帧之间进行插值,然后根据均方误差方法选择插值,来量化该对第一帧的频谱幅度。

著录项

  • 公开/公告号US6377914B1

    专利类型

  • 公开/公告日2002-04-23

    原文格式PDF

  • 申请/专利权人 COMSAT CORPORATION;

    申请/专利号US19990266839

  • 发明设计人 SUAT YELDENER;

    申请日1999-03-12

  • 分类号G10L190/20;G10L110/40;

  • 国家 US

  • 入库时间 2022-08-22 00:48:10

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