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1. (WO1991006091) LPC BASED SPEECH SYNTHESIS WITH ADAPTIVE PITCH PREFILTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006091 International Application No.: PCT/US1990/005191
Publication Date: 02.05.1991 International Filing Date: 17.09.1990
Chapter 2 Demand Filed: 07.05.1991
IPC:
G10L 19/26 (2013.01)
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19
Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
04
using predictive techniques
26
Pre-filtering or post-filtering
Applicants:
MOTOROLA, INC. [US/US]; 1303 East Algonquin Road Schaumburg, IL 60196, US
Inventors:
GERSON, Ira, Alan; US
JASIUK, Mark, Antoni; US
Agent:
PARMELEE, Steven, G. ; Motorola, Inc. Intellectual Property Dept. 1303 East Algonquin Road Schaumburg, IL 60196, US
Priority Data:
422,87117.10.1989US
Title (EN) LPC BASED SPEECH SYNTHESIS WITH ADAPTIVE PITCH PREFILTER
(FR) SYNTHESE DE PAROLE A BASE DE CODAGE A PREDICTION LINEAIRE UTILISANT UN PREFILTRE DE REGISTRE DU SON ADAPTATIF
Abstract:
(EN) A linear predictive coding speech synthetizer wherein an excitation signal that includes pitch information is filtered in a pitch enhancement filter (201) prior to provision of the excitation signal to an LPC filter (106). In one embodiment, the speech synthesizer is configured in a radio.
(FR) Synthétiseur de codage à prédiction linéaire de parole (LPC) permettant le filtrage d'un signal d'excitation qui comporte des informations concernant le registre dans un filtre d'enrichissement de registre (201) avant d'envoyer ledit signal d'excitation à un filtre LPC (106). Dans une réalisation, ledit synthétiseur de parole est incorporé dans une radio.
Designated States: AU, CA
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0496829CA2066568AU1990067256