公开(公告)号：US10433056B2

公开(公告)日：2019-10-01

申请号：US16197696

申请日：2018-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Christof Faller ,  Alexis Favrot ,  Peter Grosche ,  Martin Pollow ,  Jürgen Geiger

IPC: H04R3/04 ,  H04R3/00

Abstract: An input audio signal is separated into input audio signal components (X(k,b)). A set of two or more band branches provides output audio signal components (Y(k,b)). The set of band branches comprises one or more compressor branches Each compressor branch compresses a respective input audio signal component (X(k,b)) into a respective output audio signal component (Y(k,b)). A summed audio signal (y(t)) is generated by summing the output audio signal components (Y(k,b)). A residual audio signal (v(t)) is a difference between the input audio signal and the summed audio signal(y(t)) A virtual bass signal (w(t)) comprises one or more harmonics of the residual audio signal (v(t)). An output audio signal is generated by summing the summed audio signal (y(t)) and the virtual bass signal (w(t)).

公开(公告)号：US10665248B2

公开(公告)日：2020-05-26

申请号：US16297275

申请日：2019-03-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Milos Markovic ,  Jürgen Geiger

IPC: G10L21/0232 ,  G10L25/51 ,  G01H7/00 ,  G10L25/18 ,  G10L21/0208

Abstract: A device having an input that is configured to receive a sound signal captured from an acoustic environment where the device is located, is provided. The device also includes a signal processor that is configured to obtain a reverberation signature from the sound signal and classify the acoustic environment as being of a particular type in dependence on that reverberation signature. It also includes a controller configured to control an operation of the device in dependence on the classification of the acoustic environment. By using the reverberation signature to classify the environment, the device it is not dependent on a particular type of signal having to be present in the environment at the time when the sound signal is captured. The reverberation properties of the environment will be embodied by any sound signal captured from that environment.

公开(公告)号：US11567162B2

公开(公告)日：2023-01-31

申请号：US16664373

申请日：2019-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kainan Chen ,  Jürgen Geiger ,  Mohammad Taghizadeh ,  Peter Grosche

IPC: G01S3/808 ,  G01S3/80 ,  H04R3/00 ,  G10L17/00

Abstract: A device for estimating Direction of Arrival (DOA) of sound from Q≥1 sound sources is provided. The device is configured to obtain a phase difference matrix, which includes measured phase difference values, each of the measured phase difference values being a measured value of a phase difference between two microphone units for a frequency bin in a range of frequencies of the sound. The device is further configured to generate a replicated phase difference matrix by replicating the measured phase difference values to other potential sinusoidal periods, calculate a DOA value for each phase difference value in the replicated phase difference matrix, and determine, as Q DOA results, the Q most prominent peak values in a histogram generated based on the calculated DOA values.