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Method and apparatus for detecting speech activity using cepstrum vectors 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G10L-005/06
  • G10L-009/00
출원번호 US-0999128 (1992-12-31)
발명자 / 주소
  • Chow Yen-Lu (Saratoga CA) Staats Erik P. (Felton CA)
출원인 / 주소
  • Apple Computer, Inc. (Cupertino CA 02)
인용정보 피인용 횟수 : 27  인용 특허 : 11

초록

A method and apparatus for detecting speech activity in an input signal. The present invention includes performing begin point detection using power/zero crossing. Once the begin point has been detected, the present invention uses the cepstrum of the input signal to determine the endpoint of the sou

대표청구항

A method for detecting an endpoint of speech in an input signal, wherein the input signal is sampled, said method comprising the steps of: generating cepstrum vectors representing each spectrum of individual samples of the input signal; generating a cepstrum vector for a steady state portion of the

이 특허에 인용된 특허 (11)

  1. Martin Thomas B. (Montville NJ) Rabiner Lawrence R. (Berkeley Heights NJ) Wilpon Jay G. (Warren NJ), Endpoint detector.
  2. Manley Harold J. (Sudbury MA) de Lellis ; Jr. Joseph (Walpole MA), Half duplex integral vocoder modem system.
  3. Juang Biing-Hwang (Lincroft NJ) Levinson Stephen E. (Westfield NJ) Rabiner Lawrence R. (Berkeley Heights NJ) Sondhi Man M. (Berkeley Heights NJ), Hidden Markov model speech recognition arrangement.
  4. Yu Tiecheng (Beijing CNX) Bi Ning (Beijing CNX) Rong Meiling (Beijing CNX) Zhang Enyao (Beijing CNX), Method and apparatus for real time speech recognition with and without speaker dependency.
  5. Roberts Jed (Cambridge MA) Baker James K. (West Newton MA) Porter Edward W. (Boston MA), Method for interactive speech recognition and training.
  6. Gillick Laurence (Brookline MA) Sturtevant Dean (Watertown MA) Roth Robert S. (Brighton MA) Baker James K. (West Newton MA) Baker Janet M. (West Newton MA), Method for representing word models for use in speech recognition.
  7. Mergel Dieter (Hamburg DEX) Ney Hermann (Hamburg DEX) Tomaschewski Horst H. (Stuvenborn DEX), Method of and apparatus for determining start-point and end-point of isolated utterances in a speech signal.
  8. Copperi Maurizio (Venaria ITX), Method of and device for speech signal coding and decoding by parameter extraction and vector quantization techniques.
  9. Baker James K. (West Newton MA) Baker Janet M. (West Newton MA), Parallel pattern verifier with dynamic time warping.
  10. Kametani Jun (Tokyo JPX), Speaker recognition with glottal pulse-shapes.
  11. Schwartz Richard M. (Sudbury MA) Austin Stephen C. (Watertown MA), Word dependent N-best search method.

이 특허를 인용한 특허 (27)

  1. Campbell, Nick; Mokhtari, Parham, Apparatus and method for extracting syllabic nuclei.
  2. Jiang,Hao; Zhang,Hongjiang, Audio segmentation and classification.
  3. Jiang,Hao; Zhang,Hong Jiang, Classification of audio as speech or non-speech using multiple threshold values.
  4. Audrius Polikaitis ; William Kushner, Communication device for screening speech recognizer input.
  5. Secker-Walker, Hugh Evan; Basye, Kenneth John; Strom, Nikko; Thomas, Ryan Paul, Distributed endpointing for speech recognition.
  6. Yoo, Jong-uk, Electronic device and method capable of voice recognition.
  7. McClain, Matthew, Hidden markov model for speech processing with training method.
  8. Mekuria Fisseha,SEX, Method and apparatus for detecting voice activity.
  9. Benyassine Adil ; Shlomot Eyal, Method and apparatus for generating frame voicing decisions of an incoming speech signal.
  10. Abrash, Victor; Cesari, Federico; Franco, Horacio; George, Christopher; Zheng, Jing, Method and apparatus for obtaining complete speech signals for speech recognition applications.
  11. Peters Stephen Douglas,CAX ; Boies Daniel,CAX, Method and apparatus to detect and delimit foreground speech.
  12. Fujita, Takehiro; Miyatake, Takafumi; Nagasaka, Akio, Method and device for detecting starting and ending points of sound segment in video.
  13. Sonnic Estelle,FRX, Method and device for detecting voice activity.
  14. Mizuno Osamu,JPX ; Takahashi Satoshi,JPX ; Sagayama Shigeki,JPX, Method for speech detection in a high-noise environment.
  15. Kong, Lingcheng, Method, apparatus for eliminating popping sounds at the beginning of audio, and storage medium.
  16. Rose, Kenneth; Gu, Liang, Perceptual harmonic cepstral coefficients as the front-end for speech recognition.
  17. Rose,Kenneth; Gu,Liang, Perceptual harmonic cepstral coefficients as the front-end for speech recognition.
  18. Maeng Joon ; Tischler Paul V. ; Clements Bill, Primary transmission site switching in a multipoint videoconference environment based on human voice.
  19. Reagan, John Terrence; Znamerovskaya, Anna, Reducing artifact generation in a vocoder.
  20. Hetherington, Phil; Escott, Alex, Speech end-pointer.
  21. Hetherington, Phil; Escott, Alex, Speech end-pointer.
  22. Hetherington, Phillip A.; Fallat, Mark, Speech end-pointer.
  23. Hemphill Charles T. ; Netsch Lorin P. ; Kribs Christopher M., Speech recognition using middle-to-middle context hidden markov models.
  24. Yamato,Toshitaka; Kitao,Hideki; Iwamoto,Shinichi; Iwata,Osamu; Nakamura,Masataka; Oomoto,Yoshinao, Speech section detection apparatus.
  25. Hetherington, Phillip A.; Fallat, Mark, System for detecting speech with background voice estimates and noise estimates.
  26. Hetherington, Phillip Alan; Fallat, Mark Ryan, System for detecting speech with background voice estimates and noise estimates.
  27. Chen Wen-Yuan,TWX, Voice detection apparatus and method.
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