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A novel high quality efficient algorithm for time-scale modification of speech
Lawlor, Bob; Fagan, A.D.
We present a novel efficient algorithm for time-scale modification (TSM) of speech which gives output quality equal to that of a conventional TSM algorithm, but having computational load an order of magnitude less. The algorithm presented uses a fixed length rectangular stepping window and a simple peak alignment criterion to track the local natural scaling factor and adapt the window step size. The desired TSM factor is realised by the appropriate number of applications of the constantly varying local natural scaling factor. The local natural scaling factor estimate is updated at sub-pitch period intervals giving accurate pitch tracking and high quality in the output scaled signal.
Keyword(s): Speech; Time-Scale Modification (TSM); Synchronized Overlap-Add (SOLA); Adaptive Overlap-Add (AOLA
Publication Date:
1999
Type: Conference item
Peer-Reviewed: Yes
Institution: Maynooth University
Citation(s): Lawlor, Bob and Fagan, A.D. (1999) A novel high quality efficient algorithm for time-scale modification of speech. In: 6th European Conference on Speech Communication and Technology (EUROSPEECH’99), 5-9 September 1999, Budapest, Hungary.
File Format(s): other
Related Link(s): http://mural.maynoothuniversity.ie/9768/1/BL-High-Quality-1999.pdf
First Indexed: 2020-04-02 06:20:23 Last Updated: 2020-04-02 06:20:23