公开(公告)号：US20140003635A1

公开(公告)日：2014-01-02

申请号：US13801021

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

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

IPC: G10K11/16

CPC classification number: G10K11/16 ,  G10L2021/02166 ,  H04R3/005 ,  H04R3/02 ,  H04R2430/23 ,  H04S7/301 ,  H04S7/305

Abstract: A method includes, while operating an audio processing device in a use mode, retrieving first direction of arrival (DOA) data corresponding to a first audio output device from a memory of the audio processing device and generating a first null beam directed toward the first audio output device based on the first DOA data. The method also includes retrieving second DOA data corresponding to a second audio output device from the memory of the audio processing device and generating a second null beam directed toward the second audio output device based on the second DOA data. The first DOA data and the second DOA data are stored in the memory during operation of the audio processing device in a calibration mode.

Abstract translation: 一种方法包括在以使用模式操作音频处理设备的同时，从音频处理设备的存储器检索对应于第一音频输出设备的第一到达方向（DOA）数据，并产生朝向第一音频的第一空波束 输出设备基于第一个DOA数据。 该方法还包括从音频处理设备的存储器检索对应于第二音频输出设备的第二DOA数据，并且基于第二DOA数据生成指向第二音频输出设备的第二空波束。 第一DOA数据和第二DOA数据在校准模式下在音频处理装置的操作期间被存储在存储器中。

公开(公告)号：US20140003611A1

公开(公告)日：2014-01-02

申请号：US13933005

申请日：2013-07-01

Applicant: QUALCOMM Incorporated

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

IPC: H04R3/00

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：US20130300648A1

公开(公告)日：2013-11-14

申请号：US13674789

申请日：2012-11-12

Applicant: QUALCOMM INCORPORATED

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

IPC: G06F3/01

CPC classification number: G06F3/013 ,  G01S3/8083 ,  G04G21/00 ,  G06F1/1613 ,  G06F3/011 ,  G10L17/00 ,  G10L25/48 ,  G10L2021/02166 ,  H04M3/568 ,  H04N7/15 ,  H04R1/406 ,  H04R3/005 ,  H04R29/005 ,  H04S7/304

Abstract: Disclosed is an application interface that takes into account the user's gaze direction relative to who is speaking in an interactive multi-participant environment where audio-based contextual information and/or visual-based semantic information is being presented. Among these various implementations, two different types of microphone array devices (MADs) may be used. The first type of MAD is a steerable microphone array (a.k.a. a steerable array) which is worn by a user in a known orientation with regard to the user's eyes, and wherein multiple users may each wear a steerable array. The second type of MAD is a fixed-location microphone array (a.k.a. a fixed array) which is placed in the same acoustic space as the users (one or more of which are using steerable arrays).

Abstract translation: 公开了一种应用界面，其考虑到在呈现基于音频的上下文信息和/或基于视觉的语义信息的交互式多参与者环境中的用户的注视方向。 在这些各种实施方案中，可以使用两种不同类型的麦克风阵列装置（MAD）。 第一类型的MAD是可操纵的麦克风阵列（一个可操纵的阵列），其由用户以相对于用户的眼睛已知的方向佩戴，并且其中多个用户可以佩戴可操纵的阵列。 第二种类型的MAD是固定位置麦克风阵列（即固定阵列），其被放置在与用户（其中​​一个或多个使用可控阵列）相同的声学空间中。

公开(公告)号：US20130282369A1

公开(公告)日：2013-10-24

申请号：US13827894

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

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

IPC: G10L21/0208

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：US20130259238A1

公开(公告)日：2013-10-03

申请号：US13775720

申请日：2013-02-25

Applicant: QUALCOMM INCORPORATED

Inventor： Pei Xiang ,  Erik Visser

IPC: H04R5/04

CPC classification number: H04R5/04 ,  G06F3/017 ,  H04R3/005 ,  H04R2203/12 ,  H04R2430/20 ,  H04S7/303

Abstract: Gesture-responsive modification of a generated sound field is described.

Abstract translation: 描述所产生的声场的手势响应修改。

公开(公告)号：US20130156207A1

公开(公告)日：2013-06-20

申请号：US13664639

申请日：2012-10-31

Applicant: QUALCOMM Incorporated

Inventor： Erik Visser ,  Michael Joseph Contour ,  Eric S. Mattis ,  Joseph Robert Fitzgerald ,  Kwokleung Chan

IPC: H04B7/26

CPC classification number: H04B7/26 ,  H03G3/20 ,  H04M1/0206 ,  H04M1/035 ,  H04M1/20 ,  H04M9/082 ,  H04R3/02 ,  H04R2201/401 ,  H04R2499/11

Abstract: An accessory device having multiple speakers and/or microphones to perform a number of audio functions, for use with mobile devices, are provided. The audio transducers (e.g., microphones and/or speakers) may be housed in one or more extendable and/or rotationally adjustable arms. To compensate for the unwanted signal feedback between the speakers and microphones, acoustic echo cancellation may be implemented to determine the proper distance and relative location between the speakers and microphones. Acoustic echo cancellation removes the echo from voice communications to improve the quality of the sound. The removal of the unwanted signals captured by the microphones may be accomplished by characterizing the audio signal paths from the speakers to the microphones (speaker-to-microphone path distance profile), including the distance and relative location between the speakers and microphones. The optimal distance and relative location between the speakers and microphones is provided to the user to optimize performance.

Abstract translation: 提供了具有多个扬声器和/或麦克风以执行多个音频功能以用于移动设备的附件设备。 音频换能器（例如，麦克风和/或扬声器）可以容纳在一个或多个可伸缩和/或可旋转调节的臂中。 为了补偿扬声器和麦克风之间的不需要的信号反馈，可以实现声学回声消除以确定扬声器和麦克风之间的适当距离和相对位置。 声回波消除消除语音通信中的回声，提高声音的质量。 可以通过表征从扬声器到麦克风（扬声器到麦克风路径距离分布）的音频信号路径，包括扬声器和麦克风之间的距离和相对位置来实现麦克风捕获的不想要的信号的去除。 扬声器和麦克风之间的最佳距离和相对位置被提供给用户以优化性能。