Voice synthesizing apparatus capable of adding vibrato effect to synthesized voice

• US 20030046079A1
• Filed: 08/30/2002
• Published: 03/06/2003
• Est. Priority Date: 09/03/2001
• Status: Active Grant

• Current Assignee: Yamaha Corporation
• Original Assignee: Yamaha Corporation
• Inventors: Yoshioka, Yasuo, Loscos, Alex
• Granted Patent: US 7,389,231 B2
• Time in Patent Office: Days
• US Class Current: 704/268
• CPC Class Codes: G10L 13/10 Prosody rules derived from text; Stress or intonation

Abstract

A voice synthesizing apparatus comprises: a storage device that stores a first database storing a first parameter obtained by analyzing a voice and a second database storing a second parameter obtained by analyzing a voice with vibrato; an input device that inputs information for a voice to be synthesized; a generating device that generates a third parameter based on the first parameter read from the first database and the second parameter read from the second database in accordance with the input information; and a synthesizing device that synthesizes the voice in accordance with the third parameter. A very real vibrato effect can be added to a synthesized voice.

Claims

1. A voice synthesizing apparatus, comprising:

a storage device that stores a first database storing a first parameter obtained by analyzing a voice and a second database storing a second parameter obtained by analyzing a voice with vibrato;

an input device that inputs information for a voice to be synthesized;

a generating device that generates a third parameter based on the first parameter read from the first database and the second parameter read from the second database in accordance with the input information; and

a synthesizing device that synthesizes the voice in accordance with the third parameter.

2. A voice synthesizing apparatus according to claim 1, wherein the second database stores the second parameter for each of attack part and body part.

3. A voice synthesizing apparatus according to claim 1, wherein the second database stores the second parameter for each of attack part, body part and release part.

4. A voice synthesizing apparatus according to claim 1, wherein a beginning point or an ending point of the second parameter is a maximum value of the second parameter.

5. A voice synthesizing apparatus according to claim 4, further comprising

a looping device that generates vibrato effect longer than a duration of the body part of the second parameter by looping the body part, wherein

the generating device generates the third parameter based on the first parameter read from the first database and the vibrato effect generated by the looping device in accordance with the input information.

6. A voice synthesizing apparatus according to claim 2, wherein an offset subtraction process is performed to the body part of the second parameter before the third parameter is generated.

7. A voice synthesizing apparatus according to claim 1, wherein the generating device generates the third parameter by adding the first parameter and a value calculated in accordance with the second parameter.

8. A voice synthesizing apparatus according to claim 7, wherein the value calculated in accordance with the second parameter is a difference value from a predetermined value.

9. A voice synthesizing method, comprising the steps of:

(a) inputting information for a voice to be synthesized;

(b) reading, from a storage device that stores a first database storing a first parameter obtained by analyzing a voice and a second database storing a second parameter obtained by analyzing a voice with vibrato, the first parameter and the second parameter in accordance with the input information;

(c) generating a third parameter based on the first parameter read from the first database and the second parameter read from the second database; and

(d) synthesizing the voice in accordance with the third parameter.

10. A Program which a computer executes to realize a voice synthesizing process, comprising the instructions of:

(a) inputting information for a voice to be synthesized;

(b) reading, from a storage device that stores a first database storing a first parameter obtained by analyzing a voice and a second database storing a second parameter obtained by analyzing a voice with vibrato, the first parameter and the second parameter in accordance with the input information;

(c) generating a third parameter based on the first parameter read from the first database and the second parameter read from the second database; and

(d) synthesizing the voice in accordance with the third parameter.