公开(公告)号：US10242689B2

公开(公告)日：2019-03-26

申请号：US14857087

申请日：2015-09-17

Applicant: Intel IP Corporation

Inventor： Navin Chatlani

IPC: G10L21/0216 ,  H04R3/00 ,  G10L21/0232 ,  G10L21/0264 ,  H04R25/00 ,  G10L25/84

Abstract: Techniques are disclosed for position-robust multiple microphone noise estimation techniques. The position-robust noise estimation techniques can be used when receiving speech including diffuse noise sources, which is commonly encountered in noisy environments. The position-robust noise estimation techniques include detecting speech using the power level difference (PLD) and the coherence statistics (CS) between two microphone input signals. This multi-dimensional approach results in dual microphone noise estimation which is not affected by the position of the audio input device, resulting in more accurate detection of speech periods and more accurate noise estimation results. The position-robust noise estimate obtained from the techniques can then be used as part of a noise reduction system to reduce the levels of noise in noisy speech signals.

公开(公告)号：US20170084288A1

公开(公告)日：2017-03-23

申请号：US14857087

申请日：2015-09-17

Applicant: Intel IP Corporation

Inventor： Navin Chatlani

IPC: G10L21/0216 ,  G10L21/0232 ,  G10L21/0264 ,  H04R3/00

CPC classification number: G10L21/0216 ,  G10L21/0232 ,  G10L21/0264 ,  G10L25/84 ,  G10L2021/02165 ,  H04R3/005 ,  H04R25/407 ,  H04R2410/05 ,  H04R2499/11 ,  H04R2499/15

Abstract: Techniques are disclosed for position-robust multiple microphone noise estimation techniques. The position-robust noise estimation techniques can be used when receiving speech including diffuse noise sources, which is commonly encountered in noisy environments. The position-robust noise estimation techniques include detecting speech using the power level difference (PLD) and the coherence statistics (CS) between two microphone input signals. This multi-dimensional approach results in dual microphone noise estimation which is not affected by the position of the audio input device, resulting in more accurate detection of speech periods and more accurate noise estimation results. The position-robust noise estimate obtained from the techniques can then be used as part of a noise reduction system to reduce the levels of noise in noisy speech signals.

公开(公告)号：US20160379661A1

公开(公告)日：2016-12-29

申请号：US14751613

申请日：2015-06-26

Applicant: Intel IP Corporation

Inventor： Swarnendu Kar ,  Navin Chatlani

IPC: G10L21/0232 ,  G10L21/02 ,  G10L25/84

CPC classification number: G10L21/0232 ,  G10L25/78 ,  G10L2021/02165 ,  H04R3/005 ,  H04R2499/11 ,  H04R2499/15

Abstract: In one example a controller comprises logic, at least partially including hardware logic, configured to detect speech activity in an audio signal received in a non-aerial microphone and in response to the voice activity, to apply a noise cancellation algorithm to a speech input received in a aerial microphone. Other examples may be described.

Abstract translation: 在一个示例中，控制器包括至少部分地包括硬件逻辑的逻辑，其被配置为检测在非空中麦克风中接收的音频信号中的语音活动，并响应于语音活动，将噪声消除算法应用于接收到的语音输入 在一个空中麦克风。 可以描述其他示例。

公开(公告)号：US10249322B2

公开(公告)日：2019-04-02

申请号：US15024085

申请日：2014-10-16

Applicant: Intel IP Corporation

Inventor： Christoph Nelke ,  Navin Chatlani ,  Christophe Beaugeant ,  Peter Vary

IPC: G10K11/178 ,  G10L25/21 ,  H04R3/00 ,  G10L25/24 ,  G10L21/0232 ,  H04R3/04 ,  G10L21/0208 ,  G10L25/51

Abstract: An audio processing device is described comprising an energy distribution determiner configured to determine an energy distribution of a sound and an acoustical environment determiner configured to determine based on the energy distribution whether the sound includes a sound caused by the acoustical environment.