Method and system for phonetic recognition

• US 20030050774A1
• Filed: 08/29/2001
• Published: 03/13/2003
• Est. Priority Date: 08/23/2001
• Status: Abandoned Application

• Current Assignee: Culture.com Technology Ltd.
• Original Assignee: Culture.com Technology Ltd.
• Inventors: Feng, Chia Chi
• Application Number:
  US09/940,651
• Publication Number:
  US 20030050774A1
• Time in Patent Office: Days
• US Class Current: 704/205
• CPC Class Codes: G10L 15/00 Speech recognition G10L17/00 takes precedence
• CPC Class Codes: G10L 2015/025 Phonemes, fenemes or fenones being the recognition units

Abstract

A method and a system for phonetic recognition are proposed, in which phonetic recognition is implemented by using principles of phonetic recognition, and a general database of phonetic sounds and corresponding characters, so as to recognize a phonetic sound generated by a user and identify a character corresponding to the user'"'"'s phonetic sound, without requiring a personal database of phonetic sounds and corresponding characters for the user to be establish in advance. Moreover, the method and system for phonetic recognition can also recognize a tone of the phonetic sound to be able to identify a Chinese character corresponding in variation of four tones to the phonetic sound. In addition, in the method and system for phonetic recognition, the phonetic sound can be analyzed in timbre characteristic for allowing the user'"'"'s timbre to be recognized, while variation in volume of the phonetic sound can be analyzed so as to tell the user'"'"'s emotional condition.

Claims

1. A method for phonetic recognition, for using principles of phonetic recognition and a general database of phonetic sounds and corresponding characters to conduct phonetic recognition, without requiring a database of personal phonetic sounds and corresponding characters;

the method for phonetic recognition comprising the steps of;

(1) processing a phonetic sound generated by a user and transforming the phonetic sound into a phonetic waveform;

(2) dividing a sound packet of the phonetic waveform into different parts;

(3) recognizing the different parts of the sound packet respectively;

(4) combining the recognized parts for determining a character corresponding to the phonetic sound; and

(5) completing the phonetic recognition.

2. The method of claim 1, wherein in the step (2), the sound packet of the phonetic waveform is divided into the parts of consonant, wind and vowel.

3. The method of claim 2, wherein the part of consonant has a waveform of gradation, affricate, extrusion and plosive;

the part of vowel has repeated waveform packets, and has characteristic parameters including turning number, wave number and slope, and the part of wind is much higher in frequency than the parts of consonant and vowel.

4. The method claim 3, wherein in the step (3), the part of vowel is processed to divide the repeated waveform packets thereof so as to recognize the parts of consonant and vowel respectively.

9. The method of claim 1, wherein in the step (2), the sound packet of the phonetic waveform is divided into the parts of consonant, wind and vowel.

10. The method of claim 9, wherein the part of consonant has a waveform of gradation, affricate, extrusion and plosive;

the part of vowel has repeated waveform packets, and has characteristic parameters including turning number, wave number and slope; and

the part of wind is much higher in frequency than the parts of consonant and vowel.

11. The method of claim 10, wherein in the step (3), the part of vowel is processed to divide the repeated waveform packets thereof, so as to recognize the parts of consonant and vowel respectively.

5. A method for phonetic recognition, for using principles of phonetic recognition and a general database of phonetic sounds and corresponding characters to conduct phonetic recognition, without requiring a database of personal phonetic sounds and corresponding characters;

the method for phonetic recognition comprising the steps of;

(1) processing a phonetic sound generated by a user and transforming the phonetic sound into a phonetic waveform;

(2) analyzing physical properties of the phonetic waveform for acquiring characteristic parameters of the waveform;

(3) dividing a sound packet of the phonetic waveform into parts of consonant, wind and vowel, according to the characteristic parameters;

(4) analyzing the parts of consonant and vowel for waveform characteristics thereof, so as to recognize a character consonant corresponding to the part of consonant and a character vowel corresponding to the part of vowel;

(5) combining the recognized character consonant and character vowel for obtaining a corresponding character, and

(6) completing the phonetic recognition.

6. The method of claim 5, wherein the part of consonant has a waveform of gradation, affricate, extrusion and plosive;

the part of vowel has repeated waveform packets, and has characteristic parameters including turning number, wave number and slope; and

the part of wind is much higher in frequency than the parts of consonant and vowel.

7. The method of claim 6, wherein in the step (4), the part of vowel is processed to divide the repeated waveform packets thereof, so as to recognize the parts of consonant and vowel respectively.

8. A method for phonetic recognition, for using principles of phonetic recognition and a general database of phonetic sounds and corresponding characters to conduct phonetic recognition, without requiring a database of personal phonetic sounds and corresponding characters;

the method for phonetic recognition comprising the steps of;

(1) processing a phonetic sound generated by a user and transforming the phonetic sound into a phonetic waveform;

(2) dividing a sound packet of the phonetic waveform into different parts, and determining a fore frequency and a rear frequency of the sound packet;

(3) recognizing the different parts of the sound packet respectively, and recognizing a tone for the phonetic sound according to a rule for determining the fore and rear frequencies;

(4) combining the recognized parts and the recognized tone for determining a corresponding character for the phonetic sound; and

(5) completing the phonetic recognition.

12. The method of claim 8, wherein in the step (2), the fore frequency is determined by taking an average frequency for a first quarter region of the sound packet, and the rear frequency is determined by taking an average frequency for a final quarter region of the sound packet.

13. A method for phonetic recognition, for using principles of phonetic recognition and a general database of phonetic sounds and corresponding characters to conduct phonetic recognition, without requiring a database of personal phonic sounds and corresponding characters;

the method for phonetic recognition comprising tie steps of;

(1) pressing a phonetic sound generated by a user and transforming the phonetic sound into a phonetic waveform;

(2) analyzing physical properties of the phonetic waveform for acquiring characteristic parameters of the waveform, and determining a fore frequency and a rear frequency of the sound packet,

(3) dividing a sound packet of the phonetic waveform into parts of consonant, wind and vowel, according to the characteristic parameters;

(4) analyzing the parts of consonant and vowel for waveform characteristics thereof, so as to recognize a character consonant corresponding to the part of consonant and a character vowel corresponding to the part of vowel, and recognizing a tone for the phonetic sound according to a rule for determining the fore and rear frequencies;

(5) combining the recognized parts of consonant and vowel and the recognized tone for determining a corresponding character for the phonetic sound; and

(6) completing the phonetic recognition.

14. The method of claim 13, wherein the part of consonant has a waveform of gradation affricate, extrusion and plosive;

the part of vowel has repeated waveform packets, and has characteristic parameters including turning number, wave number and slope; and

the part of wind is much higher in frequency than the parts of consonant and vowel.

15. The method of claim 14, wherein in the step (4), the part of vowel is processed to divide the repeated waveform packets thereof, so as to recognize the parts of consonant and vowel respectively.

16. The method of claim 13, wherein in the step (2), the fore frequency is determined by taking an average frequency for a first quarter region of the sound packet, and the rear frequency is determined by taking an average frequency for a final quarter region of the sound packet.

17. A system for phonetic recognition, for using principles of phonetic recognition and a general database of phonetic sounds and corresponding characters to conduct phonetic recognition, without requiring a database of personal phonetic sounds and corresponding characters;

the system for phonetic recognition comprising;

a phonetic recognition principle database including principles of phonetic recognition to be used for processing a sound packet of a phonetic sound and dividing the sound packet into parts of consonant, wind and vowel, so as to recognize the parts of consonant, wind and vowel respectively, and combine the recognize parts of consonant and vowel to be compared with a database of phonetic sounds and corresponding characters for obtaining a corresponding character for the phonetic sound;

a database of phonetic sounds and corresponding characters, wherein a phonetic sound consists of a consonant and a vowel, and has a corresponding character;

a phonetic transformation processing module for transforming a user'"'"'s phonetic sound into a corresponding physical waveform signal and inputting the waveform signal to a phonetic recognition processing module for phonetic recognition; and

a phonetic recognition processing module, according to the principles of phonetic recognition in the phonetic recognition principle database, for processing the waveform signal by dividing a sound packet thereof into parts of consonant, wind and vowel, and recognizing the parts respectively, so as to combine the recognized parts of consonant and vowel to be compared with the database of phonetic sounds and corresponding characters for obtaining a corresponding character for the phonetic sound.

19. The system of claim 17, wherein the principles of phonetic recognition in the phonetic recognition principle database include a rule for dividing the sound packet into the parts of consonant, wind and vowel;

a rule for recognizing the parts of consonant, wind and vowel; and

a rule for combining the recognized parts of consonant and vowel.

18. A system for phonetic recognition, for using principles of phonetic recognition and a general database of phonetic sounds and corresponding characters to conduct phonetic recognition, without requiring a database of personal phonetic sounds and corresponding characters, the system for phonetic recognition comprising:

a phonetic recognition principle database including principles of phonetic recognition to be used for processing a sound packet of a phonetic sound and dividing the sound packet into parts of consonant wind and vowel, and determining a fore frequency and a rear frequency for the sound packet, so as to recognize the parts respectively, recognize a tone for the phonetic sound according to rules for determining the fore and rear frequencies, and combine the recognized parts of consonant and vowel or the recognized parts of consonant and vowel together with the recognized tone to be compared with a database of phonetic sounds and corresponding characters for obtaining a corresponding character for the phonetic sound;

a database of phonetic sounds and corresponding characters, wherein a phonetic sound consists of a consonant and a vowel, or a consonant, a vowel and a tone, and has a corresponding character;

a phonetic transformation processing module for transforming a user'"'"'s phonetic sound into a corresponding physical waveform signal and inputting the waveform signal to a phonetic recognition processing module for phonetic recognition; and

a phonetic recognition processing module, according to the principles of phonetic recognition in the phonetic recognition principle database, for processing the waveform signal by dividing a sound packet thereof into parts of consonant, wind and vowel, and determining a fore frequency and a rear frequency for the sound packet, so as to recognize the parts respectively, recognize a tone for the phonetic sound according to a rue for determining the fore and rear frequencies, and combine the recognized parts of consonant and vowel or the recognized parts of consonant and vowel together with the recognized tone to be compared with the database of phonetic sounds and corresponding characters for obtaining a corresponding character for the phonetic sound.

20. The system of claim 18, wherein the principles of phonetic recognition in the phonetic recognition principle database include a rule for dividing the sound packet into the parts of consonant, wind and vowel;

a rule for determining the fore and rear frequencies;

a rule for recognizing the parts of consonant, wind and vowel;

a rule for recognizing the tone for the phonetic sound;

a rule for combining the recognized parts of consonant and vowel; and

a rule for combining the recognized parts of consonant and vowel and the recognized tone.