Patent ID: 7089187
Filing Date: 2006-08-08
Classification: G10L

Abstract:
1. A voice synthesizing system synthesizing a predetermined voice waveform by overlaying a plurality of voice waveform segments in a waveform concatenation method, comprising: a compressed pitch segment database storing respective voice waveform segments compressed per pitch unit; a pitch developing portion reading out compressed data of the voice waveform segment from said compressed pitch segment database and decompressing the read out compressed data for reproducing an original voice waveform segment when the voice waveform segment necessary for voice waveform synthesis is demanded; a cache processing portion temporarily storing the voice waveform segment already used in voice waveform synthesis, and when voice waveform segment necessary for voice waveform synthesis is demanded, returning demanded voice waveform segment to a demander when demanded voice waveform segment is already stored, and obtaining the voice waveform segment from said compressed pitch segment database via said pitch developing portion to hold the obtained voice waveform segment and conjunction therewith to return to the demander when demanded voice waveform segment is not stored.