公开(公告)号：JP2013178570A

公开(公告)日：2013-09-09

申请号：JP2013107341

申请日：2013-05-21

Applicant: Aliphcom ,  アリフコム

Inventor： BURNETT GREGORY C ,  BREITFELLER ERIC F

IPC: G10L15/20 ,  G10L21/0272 ,  G10L11/02 ,  G10L19/02 ,  H04R3/00

CPC classification number: G10L21/0208 ,  G10L19/0204 ,  G10L25/78 ,  G10L2021/02082 ,  G10L2021/02161 ,  G10L2021/02168

Abstract: PROBLEM TO BE SOLVED: To provide a method and system for removing acoustic noise from human speech, in which noise is removed irrespective of the type, magnitude or orientation of noise to restore a signal after the removal.SOLUTION: A system includes a microphone and a sensor connected to a processor. The microphone receives acoustic signals and a VAD supplies a signal of a binary 1 when speech (both voiced and unvoiced) is occurring and of a binary 0 in the absence of speech. The processor includes a denoising algorithm, and it generates transfer functions. The transfer functions include a transfer function generated in response to a determination that voicing information is not present in the acoustic signal received during a specified time period. Also, the transfer functions include a transfer function generated in response to a determination that voicing information is present in the acoustic signal during a specified time period. At least one denoised acoustic data stream is generated using the transfer functions.

Abstract translation: 要解决的问题：提供一种用于从人类语音中去除声学噪声的方法和系统，其中噪声被去除，而不管噪声的类型，幅度或取向如何，以在去除之后恢复信号。解决方案：系统包括麦克风和 连接到处理器的传感器。 麦克风接收声信号，并且当语音（有声和无声）出现时，VAD提供二进制1的信号，并且在没有语音的情况下提供二进制0。 处理器包括一个去噪算法，它产生传递函数。 传递函数包括响应于在指定时间段期间接收的声信号中不存在声音信息的确定而产生的传递函数。 此外，传递函数包括响应于在指定时间段期间声音信息存在于声信号中的确定而产生的传递函数。 使用传递函数生成至少一个去噪的声学数据流。

公开(公告)号：JP2011203755A

公开(公告)日：2011-10-13

申请号：JP2011139645

申请日：2011-06-23

Applicant: Aliphcom ,  アリフコム

Inventor： BURNETT GREGORY C ,  BREITFELLER ERIC F

IPC: G10L15/20 ,  G10L21/02 ,  G10L11/02 ,  G10L19/02 ,  H04R3/00

CPC classification number: G10L21/0208 ,  G10L19/0204 ,  G10L25/78 ,  G10L2021/02082 ,  G10L2021/02161 ,  G10L2021/02168

Abstract: PROBLEM TO BE SOLVED: To provide a method and a system for removing acoustic noise from human speech, wherein noise is removed to restore a signal therefrom regardless of noise type, amplitude, or orientation.SOLUTION: The system includes a microphone and a sensor coupled with a processor. The microphone receives an acoustic signal, and VAD (voice activity detection) provides a binary one when speech (voiced and unvoiced) is occurring, and a binary zero in the absence of speech. The processor includes denoising algorithms that generate transfer functions. The transfer functions include a transfer function generated in response to a determination that voicing information is absent in the received acoustic signal during a specified time period. The transfer functions are used to generate at least one denoised acoustic data stream.

Abstract translation: 要解决的问题：提供一种用于从人类语音中去除声学噪声的方法和系统，其中除去噪声以从其恢复信号，而不管噪声类型，幅度或取向如何。解决方案：该系统包括麦克风和耦合的传感器 与处理器。 麦克风接收声信号，当发生语音（有声和无声）时，VAD（语音活动检测）提供二进制，而在没有语音的情况下，二进制为零。 处理器包括产生传递函数的去噪算法。 传送函数包括响应于在指定时间段期间在接收的声信号中不存在发声信息的确定而产生的传递函数。 传递函数用于产生至少一个去噪声学数据流。

公开(公告)号：AU7695501A

公开(公告)日：2002-01-30

申请号：AU7695501

申请日：2001-07-17

Applicant: ALIPHCOM

Inventor： BURNETT GREGORY C ,  BREITFELLER ERIC F

IPC: G10L15/20 ,  G10L11/02 ,  G10L19/02 ,  G10L21/00

Abstract: A method and system are provided for acoustic noise removal from human speech, wherein noise is removed without respect to noise type, amplitude, or orientation. The system includes microphones and a voice activity detection (VAD) data stream coupled among a processor. The microphones receive acoustic signals and the VAD produces a signal including a binary one when speech (voiced and unvoiced) is occurring and a binary zero in the absence of speech. The processor includes denoising algorithms that generate transfer functions. The transfer functions include a transfer functions generated in response to a determination that voicing information is absent from the received acoustic signal during a specified time period. The transfer functions also include transfer functions generated in response to a determination that voicing information is present in the acoustic signal during a specified time period. At least one denoised acoustic data stream is generated using the transfer functions.

公开(公告)号：CA2416926A1

公开(公告)日：2002-01-24

申请号：CA2416926

申请日：2001-07-17

Applicant: ALIPHCOM

Inventor： BREITFELLER ERIC F ,  BURNETT GREGORY C

IPC: G10L15/20 ,  G10L11/02 ,  G10L19/02 ,  G10L21/02

Abstract: A method and system are provided for acoustic noise removal from human speec h, wherein noise is removed without respect to noise type, amplitude, or orientation. The system includes microphones and a voice activity detection (VAD) data stream coupled among a processor. The microphones receive acousti c signals and the VAD produces a signal including a binary one when speech (voiced and unvoiced) is occurring and a binary zero in the absence of speec h. The processor includes denoising algorithms that generate transfer functions . The transfer functions include a transfer function generated in response to a determination that voicing information is absent from the received acoustic signal during a specified time period. The transfer functions also include transfer functions generated in response to a determination that voicing information is present in the acoustic signal during a specified time period . At least one denoised acoustic data stream is generated using the transfer functions.

公开(公告)号：WO0207151A3

公开(公告)日：2002-05-30

申请号：PCT/US0122490

申请日：2001-07-17

Applicant: ALIPHCOM ,  BURNETT GREGORY C ,  BREITFELLER ERIC F

Inventor： BURNETT GREGORY C ,  BREITFELLER ERIC F

IPC: G10L15/20 ,  G10L11/02 ,  G10L19/02 ,  G10L21/02

CPC classification number: G10L21/0208 ,  G10L19/0204 ,  G10L25/78 ,  G10L2021/02082 ,  G10L2021/02161 ,  G10L2021/02168

Abstract: A method and system are provided for acoustic noise removal from human speech, wherein noise is removed without respect to noise type, amplitude, or orientation. The system includes microphones and a voice activity detection (VAD) data stream coupled among a processor. The microphones receive acoustic signals and the VAD produces a signal including a binary one when speech (voiced and unvoiced) is occurring and a binary zero in the absence of speech. The processor includes denoising algorithms that generate transfer functions. The transfer functions include a transfer function generated in response to a determination that voicing information is absent from the received acoustic signal during a specified time period. The transfer functions also include transfer functions generated in response to a determination that voicing information is present in the acoustic signal during a specified time period. At least one denoised acoustic data stream is generated using the transfer functions.

Abstract translation: 提供了一种用于从人类语音去除声学噪声的方法和系统，其中除噪声类型，振幅或取向之外的噪声被去除。 该系统包括麦克风和耦合在处理器之间的语音活动检测（VAD）数据流。 麦克风接收声信号，并且当语音（有声和无声）出现时，VAD产生包括二进制的信号，并且在没有语音的情况下产生二进制零。 处理器包括产生传递函数的去噪算法。 传递函数包括响应于在指定时间段期间从接收到的声信号中不存在发声信息而产生的传递函数。 传递函数还包括响应于在指定时间段期间声音信息存在于声信号中的确定而产生的传递函数。 使用传递函数生成至少一个去噪的声学数据流。