公开(公告)号：US20180167754A1

公开(公告)日：2018-06-14

申请号：US15862033

申请日：2018-01-04

Applicant: GN Netcom A/S

Inventor： Ramus Kongsgaard OLSSON ,  Martin RUNG

IPC: H04R29/00 ,  G10L21/0216 ,  H04R1/10 ,  H04R3/00

CPC classification number: H04R29/005 ,  G10L21/0216 ,  G10L2021/02165 ,  H04R1/1083 ,  H04R3/007 ,  H04R2410/01

Abstract: Disclosed is a method for optimizing noise cancellation in a headset, the headset comprising a headphone and a microphone unit comprising at least a first microphone and a second microphone, the method comprising: generating at least a first audio signal from the at least first microphone, where the first audio signal comprises a speech portion from a user of the headset and a noise portion from the surroundings; generating at least a second audio signal from the at least second microphone, where the second audio signal comprises a speech portion from the user of the headset and a noise portion from the surroundings; generating a noise cancelled output by filtering and summing at least a part of the first audio signal and at least a part of the second audio signal, where the filtering is adaptively configured to continually minimize the power of the noise cancelled output, andwhere the filtering is adaptively configured to continually provide that at least the amplitude spectrum of the speech portion of the noise cancelled output corresponds to the speech portion of a reference audio signal generated from at least one of the microphones.

公开(公告)号：US20160105755A1

公开(公告)日：2016-04-14

申请号：US14871031

申请日：2015-09-30

Applicant: GN Netcom A/S

Inventor： Ramus Kongsgaard OLSSON ,  Martin RUNG

IPC: H04R29/00 ,  H04R1/10 ,  H04R3/00

CPC classification number: H04R29/005 ,  G10L21/0216 ,  G10L2021/02165 ,  H04R1/1083 ,  H04R3/007 ,  H04R2410/01

Abstract: Disclosed is a method for optimizing noise cancellation in a headset, the headset comprising a headphone and a microphone unit comprising at least a first microphone and a second microphone, the method comprising: generating at least a first audio signal from the at least first microphone, where the first audio signal comprises a speech portion from a user of the headset and a noise portion from the surroundings; generating at least a second audio signal from the at least second microphone, where the second audio signal comprises a speech portion from the user of the headset and a noise portion from the surroundings; generating a noise cancelled output by filtering and summing at least a part of the first audio signal and at least a part of the second audio signal, where the filtering is adaptively configured to continually minimize the power of the noise cancelled output, and where the filtering is adaptively configured to continually provide that at least the amplitude spectrum of the speech portion of the noise cancelled output corresponds to the speech portion of a reference audio signal generated from at least one of the microphones.

Abstract translation: 公开了一种用于优化耳机中的噪声消除的方法，耳机包括耳机和麦克风单元，其包括至少第一麦克风和第二麦克风，该方法包括：从至少第一麦克风产生至少第一音频信号， 其中第一音频信号包括来自耳机的用户的语音部分和来自周围环境的噪声部分; 从所述至少第二麦克风产生至少第二音频信号，其中所述第二音频信号包括来自所述耳机的用户的语音部分和来自所述周围环境的噪声部分; 通过对所述第一音频信号的至少一部分和所述第二音频信号的至少一部分进行滤波和求和来产生噪声消除输出，其中所述滤波被自适应地配置为连续地最小化所述噪声消除输出的功率，并且其中所述滤波 被自适应地配置为连续地提供至少噪声消除输出的语音部分的幅度频谱对应于从至少一个麦克风产生的参考音频信号的语音部分。