公开(公告)号：US20180359560A1

公开(公告)日：2018-12-13

申请号：US15980942

申请日：2018-05-16

Applicant: NXP B.V.

Inventor： Bruno Gabriel Paul G. Defraene ,  Cyril Guillaumé ,  Wouter Joos Tirry

IPC: H04R1/40 ,  G10K11/178 ,  H04R3/00 ,  H04R5/027

CPC classification number: H04R1/406 ,  G10K11/17854 ,  G10K2210/1082 ,  G10L21/0208 ,  G10L25/84 ,  G10L2021/02166 ,  H04R3/005 ,  H04R5/027 ,  H04R2201/403 ,  H04R2430/23

Abstract: A signal processor comprising a plurality of microphone-terminals configured to receive a respective plurality of microphone-signals. A plurality of beamforming-modules, each respective beamforming-module configured to receive and process input-signalling representative of some or all of the plurality of microphone-signals to provide a respective speech-reference-signal, a respective noise-reference-signal, and a beamformer output signal based on focusing a beam into a respective angular direction. A beam-selection-module comprising a plurality of speech-leakage-estimation-modules, each respective speech-leakage-estimation-module configured to receive the speech-reference-signal and the noise-reference-signal from a respective one of the plurality of beamforming-modules; and provide a respective speech-leakage-estimation-signal based on a similarity measure of the received speech-reference-signal with respect to the received noise-reference-signal. The beam-selection-module further comprises a beam-selection-controller configured to provide a control-signal based on the speech-leakage-estimation-signals.

公开(公告)号：US09578161B2

公开(公告)日：2017-02-21

申请号：US14106614

申请日：2013-12-13

Applicant: NXP B.V.

Inventor： Vlatko Milosevski ,  Edwin Zuidema ,  Ralf Franciscus Magdalena Funken ,  Benoit Brieussel ,  Wouter Joos Tirry ,  Rob Goyens

IPC: H04M3/00 ,  H04M9/08 ,  H04M3/18 ,  H04M3/22 ,  H04M7/00 ,  H04W4/02

CPC classification number: H04M3/002 ,  H04M3/18 ,  H04M3/2236 ,  H04M7/0063 ,  H04M9/082 ,  H04W4/027

Abstract: The use of a data link between two or more smart devices for voice communication allows for the enhancement of voice quality in a collaborative way through the exchange of well-defined meta-data between the smart devices. The meta-data may be exchanged on a separate IP data link or as part of the exchanged voice data packets.

Abstract translation: 使用两个或更多个用于语音通信的智能设备之间的数据链路允许通过在智能设备之间的良好定义的元数据的交换来协同地增强语音质量。 元数据可以在单独的IP数据链路上或作为交换的语音数据分组的一部分进行交换。

公开(公告)号：US10453469B2

公开(公告)日：2019-10-22

申请号：US15935243

申请日：2018-03-26

Applicant: NXP B.V.

Inventor： Nilesh Madhu ,  Wouter Joos Tirry

IPC: G10L21/02 ,  G10L21/0232 ,  G10L25/21 ,  G10L25/18 ,  G10L21/0216 ,  G10L19/093 ,  G10L25/90 ,  G10L21/038

Abstract: A signal processor comprising: a modelling block, configured to receive a frequency-domain-input-signal, a fundamental-frequency-signal representative of a fundamental frequency of the frequency-domain-input-signal; and configured to provide a pitch-model-signal based on a periodic function, the pitch-model-signal spanning a plurality of discrete frequency bins, each discrete frequency bin having a respective discrete frequency bin index, wherein within each discrete frequency bin the pitch-model-signal is defined by: the periodic function; the fundamental frequency; the frequency-domain-input-signal; and the respective discrete frequency bin index. The signal processor further comprises a manipulation block, configured to provide an output-signal based on the frequency-domain-input-signal and the pitch-model-signal.

公开(公告)号：US10356515B2

公开(公告)日：2019-07-16

申请号：US15980942

申请日：2018-05-16

Applicant: NXP B.V.

Inventor： Bruno Gabriel Paul G. Defraene ,  Cyril Guillaumé ,  Wouter Joos Tirry

IPC: H04R1/40 ,  G10K11/178 ,  H04R3/00 ,  H04R5/027 ,  G10L21/0208 ,  G10L21/0216 ,  G10L25/84

Abstract: A signal processor comprising a plurality of microphone-terminals configured to receive a respective plurality of microphone-signals. A plurality of beamforming-modules, each respective beamforming-module configured to receive and process input-signalling representative of some or all of the plurality of microphone-signals to provide a respective speech-reference-signal, a respective noise-reference-signal, and a beamformer output signal based on focusing a beam into a respective angular direction. A beam-selection-module comprising a plurality of speech-leakage-estimation-modules, each respective speech-leakage-estimation-module configured to receive the speech-reference-signal and the noise-reference-signal from a respective one of the plurality of beamforming-modules; and provide a respective speech-leakage-estimation-signal based on a similarity measure of the received speech-reference-signal with respect to the received noise-reference-signal. The beam-selection-module further comprises a beam-selection-controller configured to provide a control-signal based on the speech-leakage-estimation-signals.

公开(公告)号：US20150172454A1

公开(公告)日：2015-06-18

申请号：US14106614

申请日：2013-12-13

Applicant: NXP B.V.

Inventor： Vlatko Milosevski ,  Edwin Zuidema ,  Ralf Franciscus Magdalena Funken ,  Benoit Brieussel ,  Wouter Joos Tirry ,  Rob Goyens

IPC: H04M3/00 ,  H04W4/02 ,  H04M9/08

CPC classification number: H04M3/002 ,  H04M3/18 ,  H04M3/2236 ,  H04M7/0063 ,  H04M9/082 ,  H04W4/027

Abstract: The use of a data link between two or more smart devices for voice communication allows for the enhancement of voice quality in a collaborative way through the exchange of well-defined meta-data between the smart devices. The meta-data may be exchanged on a separate IP data link or as part of the exchanged voice data packets.

Abstract translation: 使用两个或更多个用于语音通信的智能设备之间的数据链路允许通过在智能设备之间的良好定义的元数据的交换来协同地增强语音质量。 元数据可以在单独的IP数据链路上或作为交换的语音数据分组的一部分进行交换。

公开(公告)号：US10997987B2

公开(公告)日：2021-05-04

申请号：US15980153

申请日：2018-05-15

Applicant: NXP B.V.

Inventor： Ann Elvire F. Spriet ,  Wouter Joos Tirry

IPC: H04R1/40 ,  B60R11/02 ,  G10L21/0364 ,  G06Q20/10 ,  G10L21/0208 ,  G10L25/84 ,  G10L21/0216 ,  G10L25/18 ,  G10L25/21 ,  G10L25/24 ,  G10L25/93 ,  G10L25/90

Abstract: A signal processor comprising: an input terminal, configured to receive an input-signal; a voicing-terminal, configured to receive a voicing-signal representative of a voiced speech component of the input-signal; an output terminal; a delay block, configured to receive the input-signal and provide a filter-input-signal as a delayed representation of the input-signal; a filter block, configured to: receive the filter-input-signal; and provide a noise-estimate-signal by filtering the filter-input-signal; a combiner block, configured to: receive a combiner-input-signal representative of the input-signal; receive the noise-estimate-signal; and combine the combiner-input-signal with the noise-estimate-signal to provide an output-signal to the output terminal; and a filter-control-block, configured to: receive the voicing-signal; receive signalling representative of the input-signal; and set filter coefficients of the filter block in accordance with the voicing-signal and the input-signal.

公开(公告)号：US20190122685A1

公开(公告)日：2019-04-25

申请号：US16143601

申请日：2018-09-27

Applicant: NXP B.V.

Inventor： Bruno Gabriel Paul G. Defraene ,  Nilesh Madhu ,  Wouter Joos Tirry

IPC: G10L21/0216 ,  G10L21/0264 ,  G06F15/18

Abstract: A signal processor for performing signal enhancement, the signal processor comprising: an input-terminal, configured to receive an input-signaling; an output-terminal; an interference-cancellation-block configured to receive the input-signaling and to provide an interference-estimate-signaling and an interference-cancelled-signal based on the input-signaling. The signal processor further comprises a feature-block configured to provide a combination-feature-signal based on the interference-cancelled-signal and the interference-estimate-signaling; and a neural-network-block configured to apply model parameters to the combination-feature-signal to provide a neural-network-output-signal to the output-terminal.

公开(公告)号：US20170270946A1

公开(公告)日：2017-09-21

申请号：US15463093

申请日：2017-03-20

Applicant: NXP B.V.

Inventor： Magdalena Kaniewska ,  Wouter Joos Tirry ,  Cyril Guillaumé ,  Johannes Abel ,  Tim Fingscheidt

IPC: G10L21/0232 ,  G10L25/93 ,  G10L21/0388

CPC classification number: G10L21/0232 ,  G10L21/0388 ,  G10L25/60 ,  G10L25/69 ,  G10L25/93 ,  G10L2025/932

Abstract: A speech-signal-processing-circuit configured to receive a time-frequency-domain-reference-speech-signal and a time-frequency-domain-degraded-speech-signal. The time-frequency-domain-reference-speech-signal comprises: an upper-band-reference-component with frequencies that are greater than a frequency-threshold-value; and a lower-band-reference-component with frequencies that are less than the frequency-threshold-value. The time-frequency-domain-degraded-speech-signal comprises: an upper-band-degraded-component with frequencies that are greater than the frequency-threshold-value; and a lower-band-degraded-component with frequencies that are less than the frequency-threshold-value. The speech-signal-processing-circuit comprises: a disturbance calculator configured to determine one or more SBR-features based on the time-frequency-domain-reference-speech-signal and the time-frequency-domain-degraded-speech-signal by: for each of a plurality of frames: determining a reference-ratio based on the ratio of (i) the upper-band-reference-component to (ii) the lower-band-reference-component; determining a degraded-ratio based on the ratio of (i) the upper-band-degraded-component to (ii) the lower-band-degraded-component; and determining a spectral-balance-ratio based on the ratio of the reference-ratio to the degraded-ratio; and (ii) determining the one or more SBR-features based on the spectral-balance-ratio for the plurality of frames.

公开(公告)号：US10297272B2

公开(公告)日：2019-05-21

申请号：US15497805

申请日：2017-04-26

Applicant: NXP B.V.

Inventor： Samy Elshamy ,  Tim Fingscheidt ,  Nilesh Madhu ,  Wouter Joos Tirry

IPC: G10L25/24 ,  G10L25/90 ,  G10L21/0364 ,  G10L21/0208

Abstract: A signal processor comprising: a signal-manipulation-block configured to: receive a cepstrum-input-signal, wherein the cepstrum-input-signal is in the cepstrum domain and comprises a plurality of bins; receive a pitch-bin-identifier that is indicative of a pitch-bin in the cepstrum-input-signal; and generate a cepstrum-output-signal based on the cepstrum-input-signal by: scaling the pitch-bin relative to one or more of the other bins of the cepstrum-input-signal; or determining an output-pitch-bin-value based on the pitch-bin, and setting one or more of the other bins of the cepstrum-input-signal to a predefined value; or determining an output-other-bin-value based on one or more of the other bins of the cepstrum-input-signal, and setting the pitch-bin to a predefined value.

公开(公告)号：US10249318B2

公开(公告)日：2019-04-02

申请号：US15463093

申请日：2017-03-20

Applicant: NXP B.V.

Inventor： Magdalena Kaniewska ,  Wouter Joos Tirry ,  Cyril Guillaumé ,  Johannes Abel ,  Tim Fingscheidt

IPC: G10L21/0232 ,  G10L21/0388 ,  G10L25/93 ,  G10L25/69 ,  G10L25/60

Abstract: A speech-signal-processing-circuit configured to receive a time-frequency-domain-reference-speech-signal and a time-frequency-domain-degraded-speech-signal. The time-frequency-domain-reference-speech-signal comprises: an upper-band-reference-component with frequencies that are greater than a frequency-threshold-value; and a lower-band-reference-component with frequencies that are less than the frequency-threshold-value. The time-frequency-domain-degraded-speech-signal comprises: an upper-band-degraded-component with frequencies that are greater than the frequency-threshold-value; and a lower-band-degraded-component with frequencies that are less than the frequency-threshold-value. The speech-signal-processing-circuit comprises: a disturbance calculator configured to determine one or more SBR-features based on the time-frequency-domain-reference-speech-signal and the time-frequency-domain-degraded-speech-signal by: for each of a plurality of frames: determining a reference-ratio based on the ratio of (i) the upper-band-reference-component to (ii) the lower-band-reference-component; determining a degraded-ratio based on the ratio of (i) the upper-band-degraded-component to (ii) the lower-band-degraded-component; and determining a spectral-balance-ratio based on the ratio of the reference-ratio to the degraded-ratio; and (ii) determining the one or more SBR-features based on the spectral-balance-ratio for the plurality of frames.