Method and device for processing sound signal for communications device

Patent metadata

Field	Value
Publication number	US-10204639-B2
Application number	US-201715413509-A
Country	US
Kind code	B2
Filing date	Jan 24, 2017
Priority date	Jul 28, 2014
Publication date	Feb 12, 2019
Grant date	Feb 12, 2019

Abstract

A method and a device for processing a sound signal for a communications device, where a relationship between values of a volume of a first sound signal collected by a main microphone and a volume of a second sound signal collected by an auxiliary microphone is acquired by comparison, to determine a sound signal processing policy, and according to the sound signal processing policy, a sound signal to be sent to a peer communications terminal is determined, where the sound signal processing policy is used to ensure that a volume of the sound signal to be sent to the peer communications terminal exceeds a preset volume threshold.

First claim

What is claimed is:

1. A device for processing a sound signal for a communications device, comprising:
a main microphone configured to collect a first sound signal;
an auxiliary microphone coupled to the main microphone and configured to collect a second sound signal;
a receiver coupled to the main microphone and the auxiliary microphone and configured to acquire the first sound signal collected by the main microphone and the second sound signal collected by the auxiliary microphone;
a processor coupled to the receiver and configured to determine a sound signal processing policy according to a relationship between values of a volume of the first sound signal and a volume of the second sound signal, the sound signal processing policy being a first sound signal processing policy when the volume of the first sound signal is less than the volume of the second sound signal, the first sound signal processing policy comprising determining whether the volume of the second sound signal is greater than or equal to the preset volume threshold; and
a transmitter coupled to the processor and configured to:
determine, according to the sound signal processing policy, a sound signal to be sent to a peer communications terminal, the sound signal processing policy ensuring a volume of the sound signal to be sent to the peer communications terminal exceeds a preset volume threshold;
send the second sound signal collected by the auxiliary microphone to the peer communications terminal when the volume of the second sound signal is greater than or equal to the preset volume threshold; and

increase the volume of the second sound signal to be greater than or equal to the preset volume threshold and send the second sound signal whose volume is increased to the peer communications terminal when the volume of the second sound signal is less than the preset volume threshold.

2. The device according to claim 1 , wherein the processor is further configured to determine the sound signal processing policy based on whether the volume of the first sound signal and the volume of the second sound signal are both greater than or equal to a minimum volume threshold, the minimum volume threshold being less than the preset volume threshold.

3. The device according to claim 2 , wherein the minimum volume threshold is 20 decibel (dB) and the preset volume threshold is 40 dB.

4. The device according to claim 1 , wherein the first sound signal comprises a sound signal produced by a person and the second sound signal comprises an ambient noise signal.

5. The device according to claim 1 , wherein the preset volume threshold is based on a decibel value of an indoor conversation.

6. A device for processing a sound signal for a communications device, comprising:
a main microphone configured to collect a first sound signal;
an auxiliary microphone coupled to the main microphone and configured to collect a second sound signal;
a receiver coupled to the main microphone and the auxiliary microphone and configured to acquire the first sound signal collected by the main microphone and the second sound signal collected by the auxiliary microphone;
a processor coupled to the receiver and configured to determine a sound signal processing policy according to a relationship between values of a volume of the first sound signal and a volume of the second sound signal, the sound signal processing policy being a second sound signal processing policy when the volume of the first sound signal is greater than the volume of the second sound signal, the second sound signal processing policy comprising:
performing acoustic filtering between the first sound signal and the second sound signal, to obtain a third sound signal; and
determining whether a volume of the third sound signal is greater than or equal to the preset volume threshold; and

a transmitter coupled to the processor and configured to:
determine, according to the sound signal processing policy, a sound signal to be sent to a peer communications terminal, the sound signal processing policy ensuring a volume of the sound signal to be sent to the peer communications terminal exceeds a preset volume threshold;
send the third sound signal to the peer communications terminal when the volume of the third sound signal is greater than or equal to the preset volume threshold; and
perform a volume amplification processing operation to increase the volume of the third sound signal to be greater than or equal to the preset volume threshold and send the third sound signal whose volume is increased to the peer communications terminal when the volume of the third sound signal is less than the preset volume threshold.

7. The device according to claim 6 , wherein the transmitter is further configured to perform the volume amplification processing operation to increase the volume of the third sound signal by:
decreasing the volume of the second sound signal; and
performing acoustic filtering between the first sound signal and the second sound signal whose volume is decreased to obtain the third sound signal whose volume is increased.

8. The device according to claim 6 , wherein the transmitter is further configured to perform the volume amplification processing operation to increase the volume of the third sound signal by:
increasing the volume of the first sound signal; and
performing acoustic filtering between the first sound signal whose volume is increased and the second sound signal to obtain the third sound signal whose volume is increased.

9. The device according to claim 6 , wherein the transmitter is further configured to perform the volume amplification processing operation to increase the volume of the third sound signal by:
decreasing the volume of the second sound signal;
increasing the volume of the first sound signal; and
performing acoustic filtering between the first sound signal whose volume is increased and the second sound signal whose volume is decreased, to obtain the third sound signal whose volume is increased.

10. The device according to claim 6 , wherein the processor is further configured to determine the sound signal processing policy based on whether the volume of the first sound signal and the volume of the second sound signal are both greater than or equal to a minimum volume threshold, the minimum volume threshold being less than the preset volume threshold.

11. The device according to claim 10 , wherein the minimum volume threshold is 20 decibel (dB) and the preset volume threshold is 40 dB.

12. The device according to claim 6 , wherein the first sound signal comprises a sound signal produced by a person and the second sound signal comprises an ambient noise signal.

13. The device according to claim 6 , wherein the preset volume threshold is based on a decibel value of an indoor conversation.

14. A device for processing a sound signal for a communications device, comprising:
a main microphone configured to collect a first sound signal;
an auxiliary microphone coupled to the main microphone and configured to collect a second sound signal;
a receiver coupled to the main microphone and the auxiliary microphone and configured to acquire the first sound signal collected by the main microphone and the second sound signal collected by the auxiliary microphone;
a processor coupled to the receiver and configured to determine a sound signal processing policy according to a relationship between values of a volume of the first sound signal and a volume of the second sound signal, the sound signal processing policy permitting one of increasing or decreasing one of the volume of the first sound signal or the vol

Assignees

• Huawei Tech Co Ltd

Inventors

• Wang Zaishang
• Zhang Xin
• Gao Guangyuan
• Zhang Xianfeng
• Zhang Guoquan

Classifications

• G10L21/034 Primary

  Automatic adjustment · CPC title

• H04R3/005

  for combining the signals of two or more microphones (specially adapted for hearing aids H04R25/407) · CPC title

• H04M9/082

  using echo cancellers (echo cancellers per se H04B3/23) · CPC title

• H04M1/19 Primary

  Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor (circuit arrangements for preventing eavesdropping H04M1/68; telephone cabinets E04H1/14) · CPC title

• G10L21/0232

  Processing in the frequency domain · CPC title