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Title: US5327521: Speech transformation system
[ Derwent Title ]


Country: US United States of America

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31 pages

 
Inventor: Savic, Michael I.; Ballston Lake, NY
Tan, Seow-Hwee; Glendale, CA
Nam, Il-Hyun; Seoul, Republic of Korea

Assignee: The Walt Disney Company, Burbank, CA
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Published / Filed: 1994-07-05 / 1993-08-31

Application Number: US1993000114603

IPC Code: Advanced: G10L 21/00;
IPC-7: G10L 3/00;

ECLA Code: G10L21/00; S10L21/013M;

U.S. Class: Current: 704/272; 704/200; 704/203; 704/E21.001;
Original: 395/002.81; 395/002.12; 395/002;

Field of Search: 381/061,62,36-40,43,45,49,50,53,54 395/2.67,2,2.7,2.79,2.81,2.87,2.12

Priority Number:
1993-08-31  US1993000114603
1992-03-02  US1992000845375

Abstract:     A high quality voice transformation system and method operates during a training mode to store voice signal characteristics representing target and source voices. Thereafter, during a real time transformation mode, a signal representing source speech is segmented into overlapping segments, analyzed to separate the excitation spectrum from the tone quality spectrum. A stored target tone quality spectrum is substituted for the source spectrum and then convolved with the actual source speech excitation spectrum to produce a transformed speech signal having the word and excitation content of the source, but the acoustical characteristics of a target speaker. The system may be used to enable a talking, costumed character, or in other applications where a source speaker wishes to imitate the voice characteristics of a different, target speaker.

Attorney, Agent or Firm: Pretty, Schroeder, Brueggemann & Clark ;

Primary / Asst. Examiners: Knepper, David D.;

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Related Applications:
Application Number Filed Patent Pub. Date  Title
US1992000845375 1992-03-02       


       
Parent Case:     This application is a continuation of a prior pending application, application Ser. No. 07/845,375, filed on Mar. 2, 1992, now abandoned.

Designated Country: EP JP 

Family: Show 2 known family members

First Claim:
Show all 11 claims
What is claimed is:     1. For use with a costume depicting a character having a defined voice with a pre-established voice characteristic, a voice transformation system comprising:
  • a microphone that is positionable to receive and transduce speech that is spoken by a person wearing the costume into a source speech signal;
  • a mask that is positionable to cover the mouth of the person wearing the costume to muffle the speech of the person wearing the costume to tend to prevent communication of the speech beyond the costume, the mask enabling placement of the microphone between the mouth and the mask;
  • a speaker disposed on or within the costume to broadcast acoustic waves carrying speech in the defined voice of the character depicted by the costume; and
  • a voice transformation device coupled to receive the signal from the microphone representing source speech spoken by a person wearing the costume, the voice transformation device transforming the received source speech signal to a target speech signal representing the utterances of the source speech signals in the defined voice of the character depicted by the costume;
  • wherein the voice transformation device stores a plurality of representations of the defined voice and transforms the voice of the person wearing the costume into the same defined voice of the character depicted by the costume, based upon association of the voice of the particular person with particular ones of the stored representations.


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Forward References: Show 175 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (175)   |   Backward references (12)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 44pp US4058676  1987-11 Wilkes et al.  International Communication Sciences Speech analysis and synthesis system
Get PDF - 5pp US4400591  1983-08 Jennings et al.   Simulated space helmet
Get PDF - 13pp US4667340  1987-05 Arjmand et al.  Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
Get PDF - 7pp US4683588  1987-07 Goldberg   Face mask with voice modifying capability
Get PDF - 23pp US4815135  1989-03 Taguchi  NEC Corporation Speech signal processor
Get PDF - 45pp US4827516  1989-05 Tsukahara et al.  Toppan Printing Co., Ltd. Method of analyzing input speech and speech analysis apparatus therefor
Get PDF - 7pp US4856068  1989-08 Quatieri et al.  Massachusetts Institute of Technology Audio pre-processing methods and apparatus
Get PDF - 13pp US4864626  1989-09 Yang   Voice modifier
Get PDF - 24pp US4885790  1989-12 McAulay et al.  Massachusetts Institute of Technology Processing of acoustic waveforms
Get PDF - 13pp US4937873  1990-06 McAulay et al.  Massachusetts Institute of Technology Computationally efficient sine wave synthesis for acoustic waveform processing
Get PDF - 14pp US5029211  1991-07 Ozawa  NEC Corporation Speech analysis and synthesis system
Get PDF - 19pp US5113449  1992-05 Blanton et al.  Texas Instruments Incorporated Method and apparatus for altering voice characteristics of synthesized speech
       
Foreign References:
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PDF
Publication Date IPC Code Assignee   Title
Get PDF - 14pp EP0285276 1988-05  G10L 7/00 MASSACHUSETTS INST TECHNOLOGY Coding of acoustic waveforms 
Get PDF - 52pp WO8605617 1986-09  G10L 5/00 MASSACHUSETTS INST TECHNOLOGY PROCESSING OF ACOUSTIC WAVEFORMS 


Other Abstract Info: DERABS G93-303736

Other References:
  • ICASSP'91 (1991 International Conference on Acoustics, Speech and Signal Processing, Toronto, Ontario, 14-17 May 1991), vol. 2, IEEE, (New York, US), M. ABE: "A segment-based approach to voice conversion", pp. 765-768, see p. 765, right-hand column, lines 2-28.
  • ICASSP'88 (1988) International Conference on Acoustics, Speech, and Signal Processing, New York, 11-14 Apr. 1988), vol. 1, IEEE, (New York, US), V. Goncharoff et al.: "Adaptive speech modification by spectral warping", pp. 343-346, see paragraph 2: Spectral envelope modification, figure 1.
  • Systems and Computers in Japan, vol. 21, No. 10, 1990 (New York, US), M. Abe et al.: "A speech modification method by signal reconstruction using short-tern Fourier transform", pp. 26-33, see figure 1.
  • IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-28, No. 1, Feb. 1980, (New York, US), R. E. Crochiere: "A weighted overlap-add method of short-time Fourier analysis/synthesis", pp. 99-102, see abstract: figure 2. (4 pages) Cited by 11 patents
  • Onzieme Colloque sur le Traitement du Signal et des Images (Nice, 1-5 Jun. 1987), Gretsi, (Paris, FR), J. Crestel et al.: "Un systeme pour l'amelioration des communications en plongee profonde", pp. 435-438, see figure 2.
  • A. Oppenheim and R. Schafer, Digital Signal Processing, Prentice-Hall, (1975), pp. 284-327.
  • L. Rabiner and R. Schafer, Digital processing of speech Signals, Prentice-Hall, (1978), pp. 303-306.
  • L. Rabiner and R. Schafer, Digital Processing of Speech Signals, Prentice-Hall, (1978), pp. 411-413.
  • S. Roucos and A. Wilgus, "High Quality Time-Scale Modification for Speech," IEEE International Conference on Acoustic, Speech and Signal Processing, CH2118-8/85/0000-0493, pp. 493-496, (Mar. 26-29, 1985).
  • M. Abe, S. Nakamura, K. Shikano, and H. Kuwabara, "Voice Conversion Through Vector Quantization", IEEE International Conference on Acoustics, Speech and Signal Processing, (Apr. 1988), pp. 655-658.
  • M. Abe, S. Tamura and H. Kuwabara, "A New Speech Modification Method by Signal Reconstruction", IEEE International Conference on Acoustic, Speech, and Signal Processing, (Apr. 1989), pp. 592-595.
  • L. Almeida and F. Silva, "Variable-Frequency Synthesis: An Improved Harmonic Coding Scheme", Proceedings of the IEEE International Conference on Acoustic, Speech, and Signal Processing, (Mar. 1984), pp. 27.5.1-27.5.4.
  • H. Bonneau and J. Gauvain, "Vector Quantization for Speaker Adaption", Proceedings of the IEEE International Conference on Acoustic, Speech and Signal Processing, (Apr. 1987), pp. 1434-1437.
  • D. Childers, "Talking Computers: Replacing Mel Blanc", Computers in Mechanical Engineering, vol. 6, No. 2 (Sep./Oct. 1987), pp. 22-31.
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  • D. Childers, B. Yegnanarayana, and K. Wu, "Voice Conversion: Factors Responsible for Quality", Proceedings of the IEEE International Conference on Acoustic, Speech, and Signal Processing, (Mar. 1985) pp. 748-751.
  • D. Griffin and J. Lim, "Signal Estimation from Modified Short-Time Fourier Transform", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-32, No. 2, (Apr. 1984), pp. 236-243. (8 pages) Cited by 29 patents
  • J. Jaschul, "An Approach to Speaker Normalization for Automatic Speech Recogniation", Proceedings of the IEEE International Conference on Acoustic, Speech, and Signal Processing, (Apr. 1979) pp. 235-238.
  • M. Portnoff, "Time-Scale Modification of Speech Based on Short-Time Fourier Analysis", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 3, (Jun. 1981), pp. 374-390. (17 pages) Cited by 11 patents
  • T. Quatieri and R. McAulay, "Apeech Transformations Based on a Sinusoidal Representation", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-34, No. 6, (Dec. 1986), pp. 1449-1461. (16 pages) Cited by 24 patents
  • M. Ross, H. Shaffer, A. Cohen, F. Freudberg and H. Manley, "Average Magnitude Difference Function Pitch Extractor", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-30, No. 5, (Oct. 1974), pp. 353-362. (10 pages) Cited by 9 patents
  • S. Seneff, "System to Independently Modify Excitation and/or Spectrum of Speech Waveform Without Explicit Pitch Extraction", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-30 No. 4, (Aug. 1982), pp. 566-578. (13 pages) Cited by 6 patents
  • S. Seneff, "Speech Transformation System (Spectrum and/or Excitation) Without Pitch Extraction", Massachusette Institute of Technology, Lincoln Laboratory, Technical Report 541, (Jul. 1980).
  • L. Rabiner, M. Cheng, A. Rosenberg, and C. McGonegal, "A Comparative Performance Study of Several Pitch Detection Algorithms", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. 24, No. 5, (Oct. 1976), pp. 399-404. (20 pages) Cited by 19 patents
  • J. Markel and A. Gray, Jr., linear prediction of Speech, Springer-Verlag, (1982).


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