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自适应同步叠加语音时长规整算法 被引量：4

Adaptive synchronous overlap and add algorithm for time scale modification of speech
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摘要 针对时域同步叠加时长规整算法计算量大,不适合在实时语音处理中应用的情形,提出了一种新的基于同步叠加方法的时长规整算法——自适应同步叠加算法,根据语音信号的准周期性质,即时调整搜索算法中的搜索间隔,以最快的速度找到最准确的叠加位置,从而达到实时处理的目的。该算法的分析测试表明,合成的语音质量高、实时性好,可以有效地应用到实时语音处理场合中。 Synchronous overlap and add (SOLA) method was popularly used for time scale modification, but this method had high computational cost. In this paper, a novel time scale modification algorithm named adaptive synchronous overlap and add (ASOLA) was presented. Based on the pre-period property of voice speech, the searching interval was modified timely so that the best overlap point is sought at the fastest speed, and time scale modification for speech is processed in real-time. Experiment results show that ASOLA has low computational cost, the speech synthesized by ASOLA has high quality, and ASOLA can be effectively used in real-time speech processing.
作者 杜守富 毛启容 詹永照
机构地区 江苏大学计算机科学与通信工程学院
出处 《通信学报》 EI CSCD 北大核心 2005年第2期136-140,共5页 Journal on Communications
基金 国家自然科学基金资助项目(60273040) 江苏省高校自然科学基金资助项目(02KJB520003)
关键词 语音处理 时长规整 同步叠加 实时 speech processing time-scale synchronous overlap and add real-time
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献4

  • 1MOULINES E, LAROCHE J. Non-parametric technique for pitch-scale and time-scale modification of speech[J]. Speech Communication, 1995,16(2): 175-205.
  • 2LAELOR B, FAGAM A D. A novel high quality efficient algorithm for time-scale modification of speech[A]. Proc of the 6th European Conference on Speech Communication and Technology[C]. Budapest,Hungary. 1999. 231-235.
  • 3YIM S, PAWATE B I. Computationally efficient algorithm for time scale modification(GLS-TSM)[A]. Proc of IEEE International Conference on Acoustics, Speech and Signal Processing[C]. 1996.1009-1012.
  • 4WONG W, AU O C. Fast SOLA-based time scale modification using modified envelope matching[A]. Proc of IEEE International Conference on Acoustics, Speech and Signal Processing[C]. Orlando,FL, 2002. 3188-3191.

同被引文献34

  • 1Wong W, AU O(C). Fast SOI.A- based Time Scale Modification Using Modified Envelope Matching. Proc of IEEE International Conference on Acoustics,Speech and Signal Processing[C].Orlando,Fl..2002:3188-3191.
  • 2Wong Hon Wah. Variable Speed Playback System for Speech and Audio Signals (and Topics in Video Processing). Master Thesis, MIT, 1998.
  • 3赵胜辉．离散时问语音信号处理-原理与应用[M]．北京：电子工业出版社．2004．
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  • 6Roucos S,Wilgus A M. High Quality Time Scale Modification for Speech [J]. proc. IEEE int. Conf. Acoustics,Speech. , Signal Processing, 1985,1 : 493 - 496.
  • 7Hejna D J. Real - Time Time - Scale Modification of Speech via the Synchronized Overlap - Add Algorithm. Master Thesis, 1990.
  • 8Makhoul J, (A) El -Jaroudi. Time - scale Modification in Medium to Low Rate Coding[J]. In Proceedings of the International Conference on Acoustics, Speech, and Signal Processing,1986,3:1705-1708.
  • 9Wayman J L, Wilson (D) L. Some Improvements on the Synchronized - overlap - add Method of Time - scale Modification for Use in Real - time Speech Compression and Noise Filtering[J]. IEEE Transactions on Acoustics, Speech, and Signal Processing, 1998,36(1) : 139 - 140.
  • 10Wayman J L, Reinke R E, Wilson (D) L. High Quality Speech Expansion, Compression, and Noise Filtering Using the SOLA Method of Time Scale Modification. In 23rd Asilomar Conference on Signals, Systems, and Computers, October 1989,2:714 - 717.

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通信学报
2005年 第2期

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