Voice synthesizing apparatus and method and apparatus and method used as part of a voice synthesizing apparatus and method

• US 5,321,794 A
• Filed: 06/25/1992
• Issued: 06/14/1994
• Est. Priority Date: 01/31/1989
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tamura, Junichi
• Primary Examiner(s): Fleming, Michael R.
• Assistant Examiner(s): Doerrler, Michelle
• Application Number:
  US07/904,906
• Time in Patent Office: 719 Days
• Field of Search: 381/51-53, 395/2.69, 84/622-625, 84/659-661, 84/DIG. 9
• US Class Current: 704/260
• CPC Class Codes: G10H 2250/455 Gensound singing voices, i.e. generation of human voices for musical applications, vocal singing sounds or intelligible words at a desired pitch or with desired vocal effects, e.g. by phoneme synthesis formant synthesis G10H2250/481; parcor synthesis G10H2250/505; modulation effects G10H2210/195; ensemble effects G10H2210/245; speech synthesis in general G10L13/00
• CPC Class Codes: G10H 7/00 Instruments in which the tones are synthesised from a data store, e.g. computer organs
• CPC Class Codes: G10L 13/02 Methods for producing synthetic speech; Speech synthesisers
• CPC Class Codes: G10L 13/04 Details of speech synthesis systems, e.g. synthesiser structure or memory management

Abstract

A voice synthesizing apparatus is arranged to synthesize a voice from text data composed of either character codes or a series of symbols by generating a sound source based on a series of sound-source parameters and synthesizing the sound source on the basis of a series of synthesis parameters. The voice synthesizing apparatus is provided with a sound-source generating circuit for generating the aforesaid sound source from a signal obtained from an instrumental sound generated with a musical instrument. This arrangement serves to easily synthesize voices which convey language information and yet which simulate the sounds of musical instruments such as a guitar, a violin, a harmonica, a musical synthesizer and the like.

Claims

1. A voice synthesizing apparatus comprising:

sound source storage means for storing a plurality of sound data which includes at least sound data obtained from a sound of a musical instrument;

synthesis parameter generating means for generating a series of synthesis parameters defining phonemes from a series of character codes;

sound source generating means for selecting at least one sound data from the plurality of sound data stored in the sound source storage means, based on sound source information including at least data indicating the kind of musical instruments, and for generating a sound of a sound source based on the selected sound data; and

synthesizing means for synthesizing a voice from the generated sound source according to the series of synthesis parameters.

2. A voice synthesizing apparatus according to claim 1, wherein said sound source storage means stores a plurality of kinds of sampled data obtained by sampling a waveform of at least one period from at least one kind of instrumental sound waveform.

3. A voice synthesizing apparatus according to claim 2, wherein the plurality of kinds of sampled data are stored in units of periods in said sound source storage means, with the amplitude power of each of the sampled data normalized in accordance with the input of a voice synthesizing filter.

4. A voice synthesizing apparatus according to claim 3, wherein the plurality of kinds of sampled data are stored in units of periods in said sound source storage means in bit-compressed form.

5. A voice synthesizing apparatus according to claim 1, wherein said sound source generating means comprises a plurality of instrumental sound generators and mixing means for summing outputs from said respective instrumental sound generators on the basis of information representing a mixing ratio.

6. An apparatus adapted for use as part of a voice synthesizing apparatus for synthesizing a voice comprising:

sound source generating means for generating a plurality of sounds forming voiced-sounds from a plurality of sound sources including at least a sound source obtained from sounds of at least a musical instrument;

sound source selecting means for selecting at least one of said plurality of sound sources; and

instructing means for instructing the selection of said sound source selecting means.

7. An apparatus according to claim 6, wherein said plurality of sound sources are obtained from sounds of musical instruments.

8. An apparatus according to claim 6, wherein said sound source generating means has a plurality of kinds of sampled data obtained by sampling a waveform of at least one period from at least one kind of instrumental sound waveform.

9. An apparatus according to claim 8, further comprising a memory, wherein the plurality of kinds of sampled data are stored in units of periods in said memory, with the amplitude power of each of the sampled data normalized in accordance with the input of a voice synthesizing filter.

10. An apparatus according to claim 9, wherein the plurality of kinds of sampled data are stored in units of periods in said memory in bit-compressed form.

11. An apparatus according to claim 6, wherein said sound source generating means comprises a plurality of instrumental sound generators and mixing means for summing outputs from said respective instrumental sound generators on the basis of information representing a mixing ratio.

12. An apparatus adapted for use as part of a voice synthesizing apparatus for synthesizing a voice, comprising:

a memory for storing voice information for a predetermined period, including information of the type of sound source used to generate sounds forming voiced-sounds for synthesizing the voice, a filter factor used by the synthesizing filter for synthesizing the voice, and information indicating whether the sound source to be used to generate the sounds for synthesizing the voice is obtained from instrumental sounds or from human voices.

13. An apparatus according to claim 12, wherein said instrumental sound source having a plurality of kinds of sampled data obtained by sampling a waveform of at least one period form at least one kind of instrumental sound waveform.

14. An apparatus according to claim 13, wherein the plurality of kinds of sampled data stored in units of periods are stored in said memory, with the amplitude power of each of the sampled data normalized in accordance with the input of a voice synthesizing filter.

15. An apparatus according to claim 14, wherein the plurality of kinds of sampled data are stored in units of periods in said memory in bit-compressed form.

16. An apparatus according to claim 12, wherein said instrumental sound source comprises a plurality of instrumental sound generators and mixing means for summing outputs from said respective instrumental sound generators on the basis of information representing a mixing ratio.

17. A method of synthesizing a voice comprising the steps of:

generating a series of synthesis parameters from a series of character codes;

selecting at least one sound data from a plurality of sound data including at least sound data obtained form sounds of a musical instrument stored in sound source storage means, based on sound source information including at least data indicating a kind of musical instruments;

generating a sound of a source based on the selected sound data; and

synthesizing a voice from the generated sound source according to the series of synthesis parameters.

18. A method according to claim 17, further comprising the step of obtaining the sound source information which comprises a plurality of kinds of sampled data, by sampling a waveform of at least one period from at least one kind of instrumental sound waveform.

19. A method according to claim 18, wherein said sound source information obtaining step includes the step of normalizing an amplitude power of each of the plurality of kinds of sampled data in accordance with the input of a voice synthesizing filter.

20. A method according to claim 18, wherein said sound source information obtaining step includes the step of bit-compressing the plurality of kinds of sampled data.

21. A method according to claim 17, further comprising the step of designating a mixing ratio with which a plurality of instrumental sounds are mixed and wherein said sound generating step comprises the step of summing the plurality of instrumental sounds on the basis of the mixing ratio.

22. A method used as a part of a method of synthesizing a voice comprising the steps of:

generating a plurality of sounds forming voiced-sounds from a plurality of sound sources including at least a sound source obtained from sounds of at least a sound source obtained from sounds of at least a musical instrument;

instructing a selection from the plurality of sound sources; and

selecting at least one of the plurality of sound sources according to said instructing step.

23. A method according to claim 22, wherein said plurality of sound sources are obtained from sounds of musical instruments.

24. A method according to claim 22, wherein the sound information comprises a plurality of kinds of sampled data, wherein said method further comprises the step of obtaining the sounds, by sampling a waveform of at least one period from at least one kind of instrumental sound waveform.

25. A method according to claim 24, wherein said obtaining step includes the step of normalizing an amplitude power of each of the plurality of kinds of sampled data in accordance with the input of a voice synthesizing filter.

26. A method according to claim 25, wherein said obtaining step includes the step of bit-compressing the plurality of kinds of sampled data.

27. A method according to claim 22, further comprising the step of designating a mixing ratio with which a plurality of instrumental sounds are mixed and wherein said generating step comprises the step of summing the plurality of instrumental sounds on the basis of the mixing ratio.

28. A method of synthesizing a voice based on voice information for a predetermined interval, comprising the steps of:

preparing and storing in a memory the voice information which includes information of the type of sound source used to generate sounds forming voiced-sounds for synthesizing the voice, a filter factor used by a synthesizing filter for synthesizing the voice, and information indicating whether the sound source to be used to generate the sound for synthesizing the voice is an instrumental sound source or a human voice sound source; and

synthesizing the voice according to the voice information.

29. A method according to claim 28, further comprising the step of generating sound information comprising a plurality of kinds of sampled data, by sampling a waveform of at least one period from at least one kind of instrumental sound waveform, the sound information being used by the sound source to generate the sound for synthesizing the voice.

30. A method according to claim 29, wherein said preparing and storing step includes the step of normalizing an amplitude power of each of the plurality of kinds of sampled data in accordance with the input of a voice synthesizing filter.

31. A method according to claim 30, wherein said preparing and storing step includes the step of bit-compressing the plurality of kinds of sampled data.

32. A method according to claim 28, further comprising the steps of designating a mixing ratio with which a plurality of instrumental sounds are mixed, and generating the sound generated by summing the plurality of instrumental sounds on the basis of the mixing ratio.