International Journal of Speech Technology

, Volume 10, Issue 2–3, pp 89–94 | Cite as

Parameters evaluation of SOLA algorithm for time scale modification

  • Zhou JunEmail author
  • Tan Wei
  • Chen Yanpu
  • Gao Yue


Successful operation of the Synchronous Overlap and Add (SOLA) algorithm for Time Scale Modification (TSM) of speech is closely tied to the proper choice of parameters. This paper investigates the quality of time scale modified speech under different values of primary parameters. Based on Mean Opinion Score (MOS) tests and Bark Spectral Distortion (BSD) measure, the proper choices of synthesis shift (Ss) and the duration of the shift search interval (K max ) are given experimentally. The conclusions can be helpful for operating the SOLA algorithm for time scale modification of speech.


Speech signal Time scale modification SOLA Quality measure 


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.The Army Aviation Research Institute of Headquarters of General StaffBeiJingChina
  2. 2.Electronic and Information LabsXi’an Communications CollegeXi’anChina

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