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Real time analysis of voiced sounds 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G10L-001/00
출원번호 US-0531575 (1974-12-11)
발명자 / 주소
  • Fletcher James C. Administrator of the National Aeronautics and Space Administration
  • with respect to an invention of ( Cupertino CA) Hong Jung P. (Cupertino CA)
인용정보 피인용 횟수 : 46  인용 특허 : 0

초록 ▼

A power spectrum analysis of the harmonic content of a voiced sound signal is conducted in real time by phase-lock-loop tracking of the fundamental frequency, fo, of the signal and successive harmonics hl through hn of the fundamental frequency, measuring the quadrature power and phase of each frequ

대표청구항 ▼

A method for obtaining power and phase data on the harmonic content of a voiced sound signal comprising the steps of using at least one phase-locked loop having a voltage controlled oscillator for trackIng at least one of said harmonics in said signal, said oscillator producing a signal at a frequen

이 특허를 인용한 특허 (46)

  1. Every, Mark; Solbach, Ludger; Murgia, Carlo; Jiang, Ye, Adaptive noise cancelation.
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  2. Every, Mark; Solbach, Ludger; Murgia, Carlo; Jiang, Ye, Adaptive noise cancellation.
    상세보기
  3. Vickers, Earl Corban, Asymmetric polynomial psychoacoustic bass enhancement.
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  4. Vickers, Earl Corban, Asymmetric polynomial psychoacoustic bass enhancement.
    상세보기
  5. McAulay Robert J. (Lexington MA) Quatieri ; Jr. Thomas F. (Arlington MA), Computationally efficient sine wave synthesis for acoustic waveform processing.
    상세보기
  6. Porrot Pascal (Paris FRX) Rougeolle Daniel (Paris FRX), Device for measuring the phase angle between a sine wave signal and a cyclic logic signal of the same frequency.
    상세보기
  7. Watts,Lloyd, Efficient computation of log-frequency-scale digital filter cascade.
    상세보기
  8. Rowland,Raymond J.; Sweetman,Denman E., Harmonic ambiguity resolver and inter array harmonic tracker.
    상세보기
  9. Wang Avery, Harmonic and frequency-locked loop pitch tracker and sound separation system.
    상세보기
  10. Ibe,Yoshihito; Myochin,Kiyonori; Nishida,Sosuke, Map drawing apparatus with audio driven object animations.
    상세보기
  11. Bottenbruch, Hermann; Mertens, Michael, Method and device for comparing acoustic input signals fed into an input device with acoustic reference signals stored in a memory.
    상세보기
  12. Chazan,Dan, Method for tracking a pitch signal.
    상세보기
  13. Nemala, Sridhar Krishna; Woodruff, John; Verma, Tony; Caldwell, Frederic, Multi-sourced noise suppression.
    상세보기
  14. Mandel, Michael; Avendano, Carlos, Noise reduction using multi-feature cluster tracker.
    상세보기
  15. Nemala, Sridhar Krishna; Laroche, Jean, Noise suppression for speech processing based on machine-learning mask estimation.
    상세보기
  16. McAulay Robert J. (Lexington MA) Quatieri ; Jr. Thomas F. (Newton MA), Processing of acoustic waveforms.
    상세보기
  17. McAulay Robert J. ; Quatieri ; Jr. Thomas F., Processing of acoustic waveforms.
    상세보기
  18. Solbach, Ludger, Self calibration of audio device.
    상세보기
  19. Yamada, Keiichi, Speech analysis apparatus, speech analysis method and computer program.
    상세보기
  20. Kong King-Leung (Happy Valley HKX), Speech recognition system.
    상세보기
  21. Avendano, Carlos; Klein, David; Woodruff, John; Goodwin, Michael M., Speech signal separation and synthesis based on auditory scene analysis and speech modeling.
    상세보기
  22. Avendano, Carlos; Solbach, Ludger, System and method for 2-channel and 3-channel acoustic echo cancellation.
    상세보기
  23. Malinowski, Stephen; Avendano, Carlos, System and method for adaptive classification of audio sources.
    상세보기
  24. Klein, David, System and method for adaptive intelligent noise suppression.
    상세보기
  25. Klein, David, System and method for adaptive intelligent noise suppression.
    상세보기
  26. Murgia, Carlo; Afshar, Alex; Klein, David, System and method for adaptive power control.
    상세보기
  27. Klein, David, System and method for blind subband acoustic echo cancellation postfiltering.
    상세보기
  28. Solbach, Ludger, System and method for controlling adaptivity of signal modification using a phantom coefficient.
    상세보기
  29. Every, Mark; Klein, David, System and method for enhancing a monaural audio signal.
    상세보기
  30. Klein, David, System and method for envelope-based acoustic echo cancellation.
    상세보기
  31. Solbach, Ludger; Watts, Lloyd, System and method for processing an audio signal.
    상세보기
  32. Avendano, Carlos, System and method for providing close microphone adaptive array processing.
    상세보기
  33. Solbach, Ludger; Murgia, Carlo, System and method for providing noise suppression utilizing null processing noise subtraction.
    상세보기
  34. Every, Mark; Avendano, Carlos; Solbach, Ludger; Murgia, Carlo, System and method for providing single microphone noise suppression fallback.
    상세보기
  35. Avendano, Carlos; Murgia, Carlo, System and method for providing voice equalization.
    상세보기
  36. Avendano, Carlos; Murgia, Carlo, System and method for providing voice equalization.
    상세보기
  37. Avendano, Carlos; Santos, Peter; Watts, Lloyd, System and method for utilizing inter-microphone level differences for speech enhancement.
    상세보기
  38. Avendano, Carlos; Watts, Lloyd; Santos, Peter, System and method for utilizing inter-microphone level differences for speech enhancement.
    상세보기
  39. Avendano, Carlos, System and method for utilizing omni-directional microphones for speech enhancement.
    상세보기
  40. Avendano, Carlos; Solbach, Ludger, Systems and methods for reconstructing decomposed audio signals.
    상세보기
  41. Rajendran, Vivek; Duni, Ethan Robert; Krishnan, Venkatesh; Tawari, Ashish Kumar, Systems, methods, apparatus, and computer-readable media for coding of harmonic signals.
    상세보기
  42. Duni, Ethan Robert; Krishnan, Venkatesh; Rajendran, Vivek, Systems, methods, apparatus, and computer-readable media for dynamic bit allocation.
    상세보기
  43. Duni, Ethan Robert; Krishnan, Venkatesh; Rajendran, Vivek, Systems, methods, apparatus, and computer-readable media for multi-stage shape vector quantization.
    상세보기
  44. Rajendran, Vivek; Duni, Ethan Robert; Krishnan, Venkatesh, Systems, methods, apparatus, and computer-readable media for noise injection.
    상세보기
  45. Winholtz, William S., Vocal demodulator.
    상세보기
  46. Scott Brian L. (Denton TX) Hardesty Lee H. (Denton TX), Voice pitch detector and display.
    상세보기

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