Method for generating pesonalized speech from text

• US 20020173962A1
• Filed: 04/05/2002
• Published: 11/21/2002
• Est. Priority Date: 04/06/2001
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Shen, Ligin, Shi, Qin, Zhang, Wei, Tang, Donald T.
• Application Number:
  US10/118,497
• Publication Number:
  US 20020173962A1
• Time in Patent Office: Days
• US Class Current: 704/260
• CPC Class Codes: G10L 13/033 Voice editing, e.g. manipulating the voice of the synthesiser
• CPC Class Codes: G10L 2021/0135 Voice conversion or morphing

Abstract

A method for generating personalized speech from text includes the steps of analyzing the input text to get standard parameters of the speech to be synthesized from a standard text-to-speech database; mapping the standard speech parameters to the personalized speech parameters via a personalization model obtained in a training process; and synthesizing speech of the input text based on the personalized speech parameters. The method can be used to simulate the speech of the target person so as to make the speech produced by a TTS system more attractive and personalized.

Claims

1. A method for generating personalized speech from input text, comprising the steps of:

analyzing the input text to get standard parameters of the speech to be synthesized from a standard text-to-speech database;

mapping the standard speech parameters to personalized speech parameters via a personalization model obtained in a training process; and

synthesizing speech from the input text based on the personalized speech parameters.

2. The method according to claim 1, wherein the personalization model is obtained by steps of:

getting the standard speech parameters through a standard text-to-speech analyzing process;

detecting the personalized speech parameters of the personalized speech;

initially creating the personalization model representing the relationship between the standard speech parameters and the personalized speech parameters; and

repeating the step of detecting the personalized speech parameters, and adjusting the personalization model based on the detection results until the personalization model is stable.

3. The method according to claim 1, wherein the personalization model comprises a personalization model for acoustic level related with cepstra parameters.

4. The method according to claim 3, wherein the personalization model for acoustic level related with cepstra parameters is created by an intelligent Vector Quantification method.

5. The method according to claim 1, wherein the personalization model comprises a personalization model for prosody level related with supra-segmental parameters.

6. The method according to claim 5, wherein the personalization model for prosody level related with supra-segmental parameters is created via a decision tree.

7. A program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform method steps for generating personalized speech from input text, said method steps comprising:

analyzing the input text to get standard parameters of the speech to be synthesized from a standard text-to-speech database;

mapping the standard speech parameters to personalized speech parameters via a personalization model obtained in a training process; and

synthesizing speech from the input text based on the personalized speech parameters.