Abstract
Time-scale modification (TSM) of speech is one potential method for speech data reduction at medium to low bit rates. In this application, the speech waveform is compressed in time prior to coding, then expanded to its original speed at the receiver. In this paper, we apply the synchronized-overlap-add (SOLA) method of TSM, developed at BBN, to speech coding at 9.6 and 4.8 kbits/s. These systems were obtained by combining TSM with other established speech coding methods.
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