计算机工程 ›› 2009, Vol. 35 ›› Issue (11): 246-247,.doi: 10.3969/j.issn.1000-3428.2009.11.085

• 多媒体技术及应用 • 上一篇    下一篇

基于LPCMCC的音频数据检索方法

江星华,李 应   

  1. (福州大学数学与计算机科学学院,福州 350002)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-05 发布日期:2009-06-05

Audio Data Retrieval Method Based on LPCMCC

JIANG Xing-hua, LI Ying   

  1. (College of Mathematics and Computer Science, Fuzhou University, Fuzhou 350002)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-05 Published:2009-06-05

摘要: LPC美尔倒频谱系数(LPCMCC)根据人耳听觉特性将LPC倒谱系数(LPCC)用非线性美尔尺度进行变换,从而更接近人耳的听觉系统。基于此提出一种采用LPCMCC为特征参数,通过动态时间规整算法进行音频数据的分类与检索方法。实验结果表明,该方法的检索精度高于LPCC,检索效率高于美尔倒谱系数(MFCC)。

关键词: LPC倒谱系数, LPC美尔倒谱系数, 音频检索, 美尔倒谱系数

Abstract: LPC Mel Cepstrum Coefficient(LPCMCC) which comes from LPC Cepstrum(LPCC) changed nonlinear by Mel scale according to human auditory characteristics, thus closer to human auditory system. This paper presents a method based on the feature parameter of LPCMCC, and through using dynamic time warping algorithm to audio data classificate and retrieve. Experimental results show that the accuracy rate of this method is better than LPCC, and the efficiency of retrieval is significantly higher than Mel Frequency Cepstrum Coefficients(MFCC).

Key words: LPC Cepstrum(LPCC), LPC Mel Cepstrum Coefficient(LPCMCC), audio retrieval, Mel Frequency Cepstrum Coefficients(MFCC)

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