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：US20190239015A1

公开(公告)日：2019-08-01

申请号：US16264115

申请日：2019-01-31

Applicant: QUALCOMM Incorporated

Inventor： Andre Gustavo P. Schevciw ,  Nils Günther Peters

IPC: H04S3/00 ,  G10L19/008 ,  H04S1/00 ,  H04R1/10 ,  G02B27/01

CPC classification number: H04S3/006 ,  G02B27/017 ,  G10L19/008 ,  H04R1/10 ,  H04R2460/13 ,  H04S1/007 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/11

Abstract: In general, techniques are described by which to support scalable unified audio rendering. A device comprising an audio decoder, a memory, and a processor may be configured to perform various aspects of the techniques. The audio decoder may decode, from a bitstream, first audio data and second audio data. The memory may store the first audio data and the second audio data. The processor may render the first audio data into first spatial domain audio data for playback by virtual speakers at a set of virtual speaker locations, and render the second audio data into second spatial domain audio data for playback by the virtual speakers at the set of virtual speaker locations. The processor may also mix the first spatial domain audio data and the second spatial domain audio data to obtain mixed spatial domain audio data, and convert the mixed spatial domain audio data to scene-based audio data.

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：US09066170B2

公开(公告)日：2015-06-23

申请号：US13954536

申请日：2013-07-30

Applicant: QUALCOMM Incorporated

Inventor： Babak Forutanpour ,  Andre Gustavo P. Schevciw ,  Erik Visser ,  Brian Momeyer

IPC: H04N7/15 ,  H04R3/00

CPC classification number: H04R3/005 ,  H04R2201/40 ,  H04R2410/01 ,  H04R2430/25 ,  H04R2499/11 ,  H04R2499/15

Abstract: A mobile platform includes a microphone array and is capable of implementing beamforming to amplify or suppress audio information from a sound source. The sound source is indicated through a user input, such as pointing the mobile platform in the direction of the sound source or through a touch screen display interface. The mobile platform further includes orientation sensors capable of detecting movement of the mobile platform. When the mobile platform moves with respect to the sound source, the beamforming is adjusted based on the data from the orientation sensors so that beamforming is continuously implemented in the direction of the sound source. The audio information from the sound source may be included or suppressed from a telephone or video-telephony conversation. Images or video from a camera may be likewise controlled based on the data from the orientation sensors.

Abstract translation: 移动平台包括麦克风阵列，并且能够实现波束形成以放大或抑制来自声源的音频信息。 通过用户输入来指示声源，例如将移动平台指向声源的方向或通过触摸屏显示界面。 移动平台还包括能够检测移动平台的移动的定向传感器。 当移动平台相对于声源移动时，基于来自定向传感器的数据来调整波束形成，使得波束形成在声源的方向上连续地实现。 可以从电话或视频电话对话中包括或抑制来自声源的音频信息。 可以基于来自定向传感器的数据来控制来自相机的图像或视频。

公开(公告)号：US20130316691A1

公开(公告)日：2013-11-28

申请号：US13954536

申请日：2013-07-30

Applicant: QUALCOMM Incorporated

Inventor： Babak Forutanpour ,  Andre Gustavo P. Schevciw ,  Erik Visser ,  Brian Momeyer

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R2201/40 ,  H04R2410/01 ,  H04R2430/25 ,  H04R2499/11 ,  H04R2499/15

Abstract: A mobile platform includes a microphone array and is capable of implementing beamforming to amplify or suppress audio information from a sound source. The sound source is indicated through a user input, such as pointing the mobile platform in the direction of the sound source or through a touch screen display interface. The mobile platform further includes orientation sensors capable of detecting movement of the mobile platform. When the mobile platform moves with respect to the sound source, the beamforming is adjusted based on the data from the orientation sensors so that beamforming is continuously implemented in the direction of the sound source. The audio information from the sound source may be included or suppressed from a telephone or video-telephony conversation. Images or video from a camera may be likewise controlled based on the data from the orientation sensors.

Abstract translation: 移动平台包括麦克风阵列，并且能够实现波束形成以放大或抑制来自声源的音频信息。 通过用户输入来指示声源，例如将移动平台指向声源的方向或通过触摸屏显示界面。 移动平台还包括能够检测移动平台的移动的定向传感器。 当移动平台相对于声源移动时，基于来自定向传感器的数据来调整波束形成，使得波束形成在声源的方向上连续地实现。 可以从电话或视频电话对话中包括或抑制来自声源的音频信息。 可以基于来自定向传感器的数据来控制来自相机的图像或视频。