VOICE SYNTHESIZER

• Main Author: SUGIURA, YOUJI
• Format: Patent
• Language: English
• Published: 09.09.1987
• Edition: 4
• Subjects: ACOUSTICS; MUSICAL INSTRUMENTS; PHYSICS; SPEECH ANALYSIS OR SYNTHESIS; SPEECH OR AUDIO CODING OR DECODING; SPEECH OR VOICE PROCESSING; SPEECH RECOGNITION

PCT No. PCT/JP82/00233 Sec. 371 Date Feb. 17, 1983 Sec. 102(e) Date Feb. 17, 1983 PCT Filed Jun. 18, 1982 PCT Pub. No. WO82/04493 PCT Pub. Date Dec. 23, 1982.Smooth transition between concatenated compiled sound elements is achieved by use of an address control unit which is initialized to a point in time corresponding to the maximum similarity between adjacent sound units. A sound synthesizing apparatus for achieving compiling synthesization by the use of sound elements extracted from an analog sound waveform, wherein an analog sound signal is converted into a digital signal, data in the vicinity of the trailing end portion of a preceding sound element and data in the vicinity of the leading end portion of a succeeding sound element are shifted relatively and an arithmetic operation of similarity is made by arithmetic control means, and data of the succeeding sound element is clocked out from a storage means such that the succeeding sound element is connected to the preceding sound element most smoothly. Accordingly, occurrence of a harmonic noise and degradation of an S/N ratio of a synthesized sound and a intelligibility due to an abrupt change of the waveform which occurred at the junction between the preceding sound element and the succeeding sound element, i.e. the discontinuity of the waveform, are almost eliminated, whereby a synthesized sound without discontinuity of the waveform at the junction and fluctuation of a pitch frequency can be obtained.