公开(公告)号：US09736604B2

公开(公告)日：2017-08-15

申请号：US13674690

申请日：2012-11-12

Applicant: QUALCOMM Incorporated

Inventor： Lae-Hoon Kim ,  Jongwon Shin ,  Erik Visser

IPC: H04R29/00 ,  G10L21/00 ,  G10L25/48 ,  H04N7/15 ,  H04L29/06 ,  H04R3/00 ,  G01S3/80 ,  G10L17/00 ,  G10L21/0216 ,  G10L25/06 ,  H04R1/40

CPC classification number: H04R29/005 ,  G01S3/80 ,  G10L17/00 ,  G10L21/00 ,  G10L25/06 ,  G10L25/48 ,  G10L2021/02166 ,  H04L65/403 ,  H04N7/15 ,  H04R1/406 ,  H04R3/005 ,  H04R29/008 ,  H04R2430/20 ,  H04R2460/01 ,  H04R2499/11

Abstract: A system which tracks a social interaction between a plurality of participants, includes a fixed beamformer that is adapted to output a first spatially filtered output and configured to receive a plurality of second spatially filtered outputs from a plurality of steerable beamformers. Each steerable beamformer outputs a respective one of the second spatially filtered outputs associated with a different one of the participants. The system also includes a processor capable of determining a similarity between the first spatially filtered output and each of the second spatially filtered outputs. The processor determines the social interaction between the participants based on the similarity between the first spatially filtered output and each of the second spatially filtered outputs.

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：US09578439B2

公开(公告)日：2017-02-21

申请号：US14807760

申请日：2015-07-23

Applicant: QUALCOMM Incorporated

Inventor： Lae-Hoon Kim ,  Raghuveer Peri ,  Erik Visser

IPC: H04S7/00 ,  G06F3/16 ,  H04S3/00

CPC classification number: H04S7/30 ,  G06F3/165 ,  H04S3/002 ,  H04S7/301 ,  H04S2400/01 ,  H04S2400/11 ,  H04S2400/15

Abstract: Techniques for processing directionally-encoded audio to account for spatial characteristics of a listener playback environment are disclosed. The directionally-encoded audio data includes spatial information indicative of one or more directions of sound sources in an audio scene. The audio data is modified based on input data identifying the spatial characteristics of the playback environment. The spatial characteristics may correspond to actual loudspeaker locations in the playback environment. The directionally-encoded audio may also be processed to permit focusing/defocusing on sound sources or particular directions in an audio scene. The disclosed techniques may allow a recorded audio scene to be more accurately reproduced at playback time, regardless of the output loudspeaker setup. Another advantage is that a user may dynamically configure audio data so that it better conforms to the user's particular loudspeaker layouts and/or the user's desired focus on particular subjects or areas in an audio scene.

Abstract translation: 公开了用于处理定向编码的音频以考虑收听者回放环境的空间特征的技术。 定向编码的音频数据包括指示音频场景中的声源的一个或多个方向的空间信息。 基于识别回放环境的空间特性的输入数据来修改音频数据。 空间特征可以对应于播放环境中的实际扬声器位置。 定向编码的音频也可以被处理以允许对音频场景中的声源或特定方向进行聚焦/散焦。 所公开的技术可以允许在播放时间更准确地再现记录的音频场景，而与输出的扬声器设置无关。 另一个优点是用户可以动态地配置音频数据，使得其更好地符合用户的特定扬声器布局和/或用户对音频场景中的特定主体或区域的期望焦点。

公开(公告)号：US09497544B2

公开(公告)日：2016-11-15

申请号：US13933005

申请日：2013-07-01

Applicant: QUALCOMM Incorporated

Inventor： Asif I. Mohammad ,  Lae-Hoon Kim ,  Erik Visser

IPC: H04B3/20 ,  H04R3/00 ,  H04B15/00 ,  G10L21/0208

CPC classification number: H04R3/005 ,  G10L2021/02082 ,  H04B3/20 ,  H04R2430/23

Abstract: A method for echo reduction by an electronic device is described. The method includes nulling at least one speaker. The method also includes mixing a set of runtime audio signals based on a set of acoustic paths to determine a reference signal. The method also includes receiving at least one composite audio signal that is based on the set of runtime audio signals. The method further includes reducing echo in the at least one composite audio signal based on the reference signal.

Abstract translation: 描述了一种通过电子设备进行回波减少的方法。 该方法包括使至少一个扬声器归零。 该方法还包括基于一组声学路径混合一组运行时音频信号以确定参考信号。 该方法还包括接收至少一个基于该组运行时音频信号的复合音频信号。 该方法还包括基于参考信号减少至少一个复合音频信号中的回波。

公开(公告)号：US20160309279A1

公开(公告)日：2016-10-20

申请号：US15195780

申请日：2016-06-28

Applicant: QUALCOMM Incorporated

Inventor： Lae-Hoon Kim ,  Pei Xiang ,  Erik Visser

IPC: H04S7/00 ,  H04R29/00 ,  H04R3/12

CPC classification number: H04S7/303 ,  G01S3/808 ,  H04R1/323 ,  H04R3/12 ,  H04R29/002 ,  H04R2430/20 ,  H04R2499/13 ,  H04S7/301 ,  H04S7/302

Abstract: A wireless device is described. The wireless device includes at least two microphones on the wireless device. The microphones are configured to capture sound from a target user. The wireless device also includes processing circuitry. The processing circuitry is coupled to the microphones. The processing circuitry is configured to locate the target user. The wireless device further includes a communication interface. The communication interface is coupled to the processing circuitry. The communication interface is configured to receive external device microphone audio from at least one external device microphone to assist the processing circuitry in the wireless device to locate the target user.

Abstract translation: 描述无线设备。 无线设备在无线设备上包括至少两个麦克风。 麦克风被配置为捕获来自目标用户的声音。 无线设备还包括处理电路。 处理电路耦合到麦克风。 处理电路被配置为定位目标用户。 无线设备还包括通信接口。 通信接口耦合到处理电路。 通信接口被配置为从至少一个外部设备麦克风接收外部设备麦克风音频，以帮助无线设备中的处理电路定位目标用户。

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：US20160254007A1

公开(公告)日：2016-09-01

申请号：US14634637

申请日：2015-02-27

Applicant: QUALCOMM Incorporated

Inventor： Yinyi Guo ,  Shuhua Zhang ,  Erik Visser ,  Lae-Hoon Kim ,  Sanghyun Chi

IPC: G10L21/0208 ,  G10L21/034 ,  H03G5/00 ,  H03G5/16

CPC classification number: G10L21/0208 ,  G10L21/0232 ,  G10L21/034 ,  H03G5/005 ,  H03G5/165

Abstract: A method for speech restoration by an electronic device is described. The method includes obtaining a noisy speech signal. The method also includes suppressing noise in the noisy speech signal to produce a noise-suppressed speech signal. The noise-suppressed speech signal has a bandwidth that includes at least three subbands. The method further includes iteratively restoring each of the at least three subbands. Each of the at least three subbands is restored based on all previously restored subbands of the at least three subbands.

Abstract translation: 描述了一种通过电子设备进行语音恢复的方法。 该方法包括获得噪声语音信号。 该方法还包括抑制噪声语音信号中的噪声以产生噪声抑制语音信号。 噪声抑制语音信号具有包括至少三个子带的带宽。 该方法还包括迭代地恢复至少三个子带中的每一个。 所述至少三个子带中的每一个基于所述至少三个子带的所有先前恢复的子带被恢复。

公开(公告)号：US09305567B2

公开(公告)日：2016-04-05

申请号：US13827894

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Erik Visser ,  Lae-Hoon Kim ,  Jongwon Shin ,  Yinyi Guo ,  Sang-Uk Ryu ,  Andre Gustavo P. Schevciw

IPC: G10L21/0208 ,  G10L15/20 ,  G10L21/0316 ,  G10L25/93 ,  G10L21/0216

CPC classification number: G10L21/0208 ,  G10L15/20 ,  G10L21/0316 ,  G10L25/93 ,  G10L2021/02165

Abstract: A method for signal level matching by an electronic device is described. The method includes capturing a plurality of audio signals from a plurality of microphones. The method also includes determining a difference signal based on an inter-microphone subtraction. The difference signal includes multiple harmonics. The method also includes determining whether a harmonicity of the difference signal exceeds a harmonicity threshold. The method also includes preserving the harmonics to determine an envelope. The method further applies the envelope to a noise-suppressed signal.

Abstract translation: 描述了一种由电子设备进行信号电平匹配的方法。 该方法包括从多个麦克风中捕获多个音频信号。 该方法还包括基于麦克风间减法确定差分信号。 差分信号包括多个谐波。 该方法还包括确定差分信号的谐波是否超过谐波阈值。 该方法还包括保存谐波以确定信封。 该方法进一步将包络应用于噪声抑制信号。

公开(公告)号：US20160004405A1

公开(公告)日：2016-01-07

申请号：US14789736

申请日：2015-07-01

Applicant: QUALCOMM Incorporated

Inventor： Lae-Hoon Kim ,  Erik Visser ,  Raghuveer Peri ,  Phuong Lam Ton ,  Jeremy Patrick Toman ,  Troy Schultz ,  Jimeng Zheng

IPC: G06F3/0487 ,  G06F3/0484

CPC classification number: H04R3/005 ,  G06F3/0484 ,  G06F3/04847 ,  G06F3/0487 ,  G06F3/165 ,  G06F3/167 ,  G10H2210/305 ,  G10H2220/096 ,  G10H2220/106 ,  G10H2220/211 ,  G10H2220/355 ,  G10H2230/015 ,  G10L21/0208 ,  H04R29/008 ,  H04R2430/01 ,  H04S7/30 ,  H04S7/40

Abstract: A method of processing audio may include receiving, by a computing device, a plurality of real-time audio signals outputted by a plurality of microphones communicatively coupled to the computing device. The computing device may output to a display a graphical user interface (GUI) that presents audio information associated with the received audio signals. The one or more received audio signals may be processed based on a user input associated with the audio information presented via the GUI to generate one or more processed audio signals. The one or more processed audio signals may be output to, for example, one or more output devices such as speakers, headsets, and the like.

Abstract translation: 一种处理音频的方法可以包括由计算设备接收由通信地耦合到所述计算设备的多个麦克风输出的多个实时音频信号。 计算设备可以向显示器输出呈现与所接收的音频信号相关联的音频信息的图形用户界面（GUI）。 可以基于与经由GUI呈现的音频信息相关联的用户输入来处理一个或多个接收的音频信号，以生成一个或多个处理的音频信号。 一个或多个经处理的音频信号可以输出到例如一个或多个输出设备，例如扬声器，耳机等。

公开(公告)号：US20150301796A1

公开(公告)日：2015-10-22

申请号：US14688974

申请日：2015-04-16

Applicant: QUALCOMM Incorporated

Inventor： Erik Visser ,  Lae-Hoon Kim ,  Minho Jin ,  Yinyi Guo

IPC: G06F3/16 ,  G10L15/22

CPC classification number: G06F3/167 ,  G10L15/22 ,  G10L17/04 ,  G10L17/08 ,  G10L17/22

Abstract: A device includes a memory, a receiver, a processor, and a display. The memory is configured to store a speaker model. The receiver is configured to receive an input audio signal. The processor is configured to determine a first confidence level associated with a first portion of the input audio signal based on the speaker model. The processor is also configured to determine a second confidence level associated with a second portion of the input audio signal based on the speaker model. The display is configured to present a graphical user interface associated with the first confidence level or associated with the second confidence level.

Abstract translation: 设备包括存储器，接收器，处理器和显示器。 存储器被配置为存储扬声器模型。 接收器被配置为接收输入音频信号。 处理器被配置为基于说话者模型来确定与输入音频信号的第一部分相关联的第一置信水平。 处理器还被配置为基于说话者模型来确定与输入音频信号的第二部分相关联的第二置信度。 显示器被配置为呈现与第一置信水平相关联或与第二置信水平相关联的图形用户界面。