公开(公告)号：US09936290B2

公开(公告)日：2018-04-03

申请号：US14156292

申请日：2014-01-15

Applicant: QUALCOMM Incorporated

Inventor： Asif Iqbal Mohammad ,  Lae-Hoon Kim ,  Ian Ernan Liu ,  Erik Visser

IPC: H04B3/20 ,  H04M9/08 ,  H04R3/00 ,  G10K11/16

CPC classification number: H04R3/002 ,  H04M9/082

Abstract: A method for multi-channel echo cancellation and noise suppression is described. One of multiple echo estimates is selected for non-linear echo cancellation. Echo notch masking is performed on a noise-suppressed signal based on an echo direction of arrival (DOA) to produce an echo-suppressed signal. Non-linear echo cancellation is performed on the echo-suppressed signal based, at least in part, on the selected echo estimate.

公开(公告)号：US09672805B2

公开(公告)日：2017-06-06

申请号：US14808746

申请日：2015-07-24

Applicant: QUALCOMM Incorporated

Inventor： Lae-Hoon Kim ,  Asif Iqbal Mohammad ,  Erik Visser

IPC: G10K11/16 ,  A61F11/06 ,  G10K11/178 ,  G10L21/02 ,  H04R3/02 ,  H04R5/02 ,  H04S7/00 ,  H04R27/00 ,  H04M9/08 ,  G10L21/0208

CPC classification number: G10K11/178 ,  G10L21/02 ,  G10L2021/02082 ,  H04M9/082 ,  H04R3/02 ,  H04R5/02 ,  H04R27/00 ,  H04R2227/009 ,  H04R2499/13 ,  H04S7/00 ,  H04S7/302

Abstract: A crosstalk cancelation technique reduces feedback in a shared acoustic space by canceling out some or all parts of sound signals that would otherwise be produced by a loudspeaker to only be captured by a microphone that, recursively, would cause these sounds signals to be reproduced again on the loudspeaker as feedback. Crosstalk cancelation can be used in a multichannel acoustic system (MAS) comprising an arrangement of microphones, loudspeakers, and a processor to together enhance conversational speech between in a shared acoustic space. To achieve crosstalk cancelation, a processor analyzes the inputs of each microphone, compares it to the output of far loudspeaker(s) relative to each such microphone, and cancels out any portion of a sound signal received by the microphone that matches signals that were just produced by the far loudspeaker(s) and sending only the remaining sound signal (if any) to such far loudspeakers.

公开(公告)号：US20160309275A1

公开(公告)日：2016-10-20

申请号：US14690059

申请日：2015-04-17

Applicant: QUALCOMM Incorporated

Inventor： Andre Gustavo Schevciw ,  Babak Forutanpour ,  Asif Iqbal Mohammad ,  Lae-Hoon Kim

IPC: H04S7/00 ,  G10K11/16 ,  H04R5/04

CPC classification number: H04S7/301 ,  G10K11/16 ,  H04M9/082 ,  H04R5/04 ,  H04R2499/13 ,  H04S2400/09

Abstract: A multi-channel sound (MCS) system features intelligent calibration (e.g., of acoustic echo cancelation (AEC)) for use in dynamic acoustic environments. A sensor subsystem is utilized to detect and identify changes in the acoustic environment and determine a “scene” corresponding to the resulting acoustic characteristics for that environment. This detected scene is compared to predetermined scenes corresponding to the acoustic environment. Each predetermined scene has a corresponding pre-tuned filter configuration for optimal AEC performance. Based on the results of the comparison, the pre-tuned filter configuration corresponding to the predetermined scene that most closely matches the detected scene is utilized by the AEC subsystem of the multi-channel sound system.

Abstract translation: 多通道声音（MCS）系统具有用于动态声学环境的智能校准（例如，声学回声消除（AEC））。 传感器子系统用于检测和识别声学环境中的变化并且确定对应于该环境所得到的声学特性的“场景”。 将该检测到的场景与对应于声学环境的预定场景进行比较。 每个预定场景具有相应的预调节过滤器配置，以实现最佳AEC性能。 基于比较的结果，与多声道音响系统的AEC子系统一起利用与预测场景最匹配的预先设定的滤波器配置。

公开(公告)号：US20180190258A1

公开(公告)日：2018-07-05

申请号：US15639892

申请日：2017-06-30

Applicant: QUALCOMM Incorporated

Inventor： Asif Iqbal Mohammad ,  Rishabh Tyagi ,  Erik Visser ,  Rogerio Guedes Alves

IPC: G10K11/178 ,  G10L15/02 ,  G10L15/22

CPC classification number: G10K11/1786 ,  G10K11/178 ,  G10K11/17883 ,  G10K2210/1282 ,  G10K2210/3028 ,  G10K2210/3046 ,  G10K2210/3053 ,  G10L15/02 ,  G10L15/22 ,  G10L2015/223

Abstract: Adaptations for in-vehicle adaptive noise-canceling (ANC) technology are described. An example in-vehicle audio system includes ANC circuitry coupled to one or more error microphones. The ANC circuitry being configured to process audio data received from the one or more error microphones to determine a distinction between the engine-external noise and the engine noise. The ANC circuitry is further configured to alter, based on the distinction determined between the engine-external noise and the engine noise, a convergence between two or more ANC filters to form altered-convergence ANC filtering coefficients.

公开(公告)号：US09769587B2

公开(公告)日：2017-09-19

申请号：US14690059

申请日：2015-04-17

Applicant: QUALCOMM Incorporated

Inventor： Andre Gustavo Schevciw ,  Babak Forutanpour ,  Asif Iqbal Mohammad ,  Lae-Hoon Kim

IPC: H04R5/02 ,  H04S7/00 ,  G10K11/16 ,  H04R5/04

CPC classification number: H04S7/301 ,  G10K11/16 ,  H04M9/082 ,  H04R5/04 ,  H04R2499/13 ,  H04S2400/09

Abstract: A multi-channel sound (MCS) system features intelligent calibration (e.g., of acoustic echo cancellation (AEC)) for use in dynamic acoustic environments. A sensor subsystem is utilized to detect and identify changes in the acoustic environment and determine a “scene” corresponding to the resulting acoustic characteristics for that environment. This detected scene is compared to predetermined scenes corresponding to the acoustic environment. Each predetermined scene has a corresponding pre-tuned filter configuration for optimal AEC performance. Based on the results of the comparison, the pre-tuned filter configuration corresponding to the predetermined scene that most closely matches the detected scene is utilized by the AEC subsystem of the multi-channel sound system.

公开(公告)号：US09743213B2

公开(公告)日：2017-08-22

申请号：US14808967

申请日：2015-07-24

Applicant: QUALCOMM Incorporated

Inventor： Asif Iqbal Mohammad ,  Erik Visser ,  Lae-Hoon Kim ,  Shaun William Van Dyken ,  Troy Schultz ,  Samir Kumar Gupta

IPC: H04S7/00 ,  H04R5/02 ,  H04R5/04 ,  H04M3/56 ,  H04M9/08 ,  G10L21/0208 ,  G10L21/0216

CPC classification number: H04S7/302 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04M3/568 ,  H04M9/082 ,  H04R5/02 ,  H04R5/04 ,  H04R2499/13 ,  H04S2400/09

Abstract: A multichannel acoustic system (MAS) comprises an arrangement of microphones, loudspeakers, and filters along with a multichannel acoustic processor (MAP) and other components to together provide and enhance the auditory experience of persons in a shared acoustic space such as, for example, the driver and other passengers in an automobile. Driver-specific features such as navigation and auditory feedback cues are described, as individual auditory customizations and collective communications both within the shared acoustic space as well as with other individuals not located in the space via enhanced conference call facilities.

公开(公告)号：US09275625B2

公开(公告)日：2016-03-01

申请号：US13787605

申请日：2013-03-06

Applicant: QUALCOMM Incorporated

Inventor： Lae-Hoon Kim ,  Asif Iqbal Mohammad ,  Erik Visser ,  Jongwon Shin

IPC: A61F11/06 ,  G10K11/16 ,  H04M9/08 ,  G10L21/0216

CPC classification number: G10K11/16 ,  G10L21/0216 ,  H04M9/082

Abstract: Apparatus and methods for audio noise attenuation are disclosed. An audio signal analyzer can determine whether an input audio signal received from a microphone device includes a noise signal having identifiable content. If there is a noise signal having identifiable content, a content source is accessed to obtain a copy of the noise signal. An audio canceller can generate a processed audio signal, having an attenuated noise signal, based on comparing the copy of the noise signal to the input audio signal. Additionally or alternatively, data may be communicated on a communication channel to a separate media device to receive at least a portion of the copy of the noise signal from the separate media device, or to receive content-identification data corresponding to the content source.

Abstract translation: 公开了用于音频噪声衰减的装置和方法。 音频信号分析器可以确定从麦克风装置接收的输入音频信号是否包括具有可识别内容的噪声信号。 如果存在具有可识别内容的噪声信号，则访问内容源以获得噪声信号的副本。 基于将噪声信号的复制与输入音频信号进行比较，音频消除器可以生成具有衰减噪声信号的已处理音频信号。 另外或替代地，数据可以在通信信道上传送到单独的媒体设备，以从单独的媒体设备接收噪声信号的副本的至少一部分，或者接收对应于内容源的内容标识数据。

公开(公告)号：US20140254816A1

公开(公告)日：2014-09-11

申请号：US13787605

申请日：2013-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： Lae-Hoon Kim ,  Asif Iqbal Mohammad ,  Erik Visser ,  Jongwon Shin

IPC: G10K11/16

CPC classification number: G10K11/16 ,  G10L21/0216 ,  H04M9/082

Abstract: Apparatus and methods for audio noise attenuation are disclosed. An audio signal analyzer can determine whether an input audio signal received from a microphone device includes a noise signal having identifiable content. If there is a noise signal having identifiable content, a content source is accessed to obtain a copy of the noise signal. An audio canceller can generate a processed audio signal, having an attenuated noise signal, based on comparing the copy of the noise signal to the input audio signal. Additionally or alternatively, data may be communicated on a communication channel to a separate media device to receive at least a portion of the copy of the noise signal from the separate media device, or to receive content-identification data corresponding to the content source.

Abstract translation: 公开了用于音频噪声衰减的装置和方法。 音频信号分析器可以确定从麦克风装置接收的输入音频信号是否包括具有可识别内容的噪声信号。 如果存在具有可识别内容的噪声信号，则访问内容源以获得噪声信号的副本。 基于将噪声信号的复制与输入音频信号进行比较，音频消除器可以生成具有衰减噪声信号的已处理音频信号。 另外或替代地，数据可以在通信信道上传送到单独的媒体设备，以从单独的媒体设备接收噪声信号的副本的至少一部分，或者接收对应于内容源的内容标识数据。