In this paper it is described a new algorithm for esophageal speech regeneration, based on pitch and jitter modification. Traditional phase vocoder and resampling pitch scaling techniques have been used to develop a new adaptive method which scales the low esophageal speech pitch and applies a variable scaling factor significantly reducing its jitter. This method has shown to considerably improve esophageal speech quality, reducing its hoarseness and increasing its intelligibility. The presented algorithm pretends to be an important step forward in the regeneration of esophageal speech.

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