Method for sound effect compensation, non-transitory computer-readable storage medium, and terminal device

Patent metadata

Field	Value
Publication number	US-10609483-B2
Application number	US-201816229420-A
Country	US
Kind code	B2
Filing date	Dec 21, 2018
Priority date	Mar 30, 2018
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A method and an apparatus for sound effect compensation, a non-transitory computer-readable storage medium, and a terminal device are provided. The method includes the following. An acoustic transmission function of an audio processing device in an ear canal of a user is determined according to an audio signal currently output from the audio processing device. Compensate for the audio signal according to the acoustic transmission function.

First claim

What is claimed is:

1. A method for sound effect compensation, comprising:
acquiring an audio signal output from an audio processing device;
recording an acoustic echo signal formed by reflection and vibration of the audio signal through an ear canal;
determining an acoustic transmission function of the audio processing device in the ear canal of a user according to the audio signal output from the audio processing device and the acoustic echo; and
compensating for the audio signal according to the acoustic transmission function.

2. The method of claim 1 , wherein the compensating for the audio signal according to the acoustic transmission function comprises:
determining a monitoring frequency-response curve of the audio processing device according to the acoustic transmission function; and
compensating for the audio signal by adjusting the monitoring frequency-response curve according to a standard frequency-response curve.

3. The method of claim 2 , wherein the determining a monitoring frequency-response curve of the audio processing device according to the acoustic transmission function comprises:
acquiring a corresponding relationship among acoustic echo signals, acoustic transmission functions, and monitoring frequency-response curves; and
determining the monitoring frequency-response curve of the audio processing device in the ear canal of the user according to the acoustic transmission function and the corresponding relationship.

4. The method of claim 2 , wherein the compensating for the audio signal by adjusting the monitoring frequency-response curve according to a standard frequency-response curve comprises:
determining difference data between the standard frequency-response curve and the monitoring frequency-response curve; and
adjusting gain parameters of an equalizer according to the difference data, the gain parameters comprising a gain frequency point and a gain value, and the equalizer being disposed in the audio processing device.

5. The method of claim 4 , wherein the determining difference data between the standard frequency-response curve and the monitoring frequency-response curve comprises:
judging whether a difference between a gain value corresponding to the standard frequency-response curve and a gain value corresponding to the monitoring frequency-response curve at a same frequency point is within a preset range; and
determining the difference as the difference data, based on a judgment that the difference is not within the preset range.

6. The method of claim 1 , wherein the compensating for the audio signal according to the acoustic transmission function comprises:
acquiring stored acoustic transmission functions and compensation data of the audio processing device in ear canals of different users;
acquiring corresponding compensation data according to the acoustic transmission function; and
compensating for the audio signal according to the compensation data.

7. The method of claim 1 , further comprising:
acquiring age information of the user according to the acoustic transmission function; and
adjusting sound effects of the audio signal subject to the compensating according to the age information.

8. A terminal device, comprising:
at least one processor; and
a computer readable storage, coupled to the at least one processor and storing at least one computer executable instruction thereon which, when executed by the at least one processor, cause the at least one processor to carry out actions, comprising:
determining an acoustic transmission function of an audio processing device in an ear canal of a user according to an audio signal output from the audio processing device;
acquiring stored acoustic transmission functions and compensation data of the audio processing device in ear canals of different users;
acquiring corresponding compensation data according to the acoustic transmission function; and
compensating for the audio signal according to the compensation data.

9. The terminal device of claim 8 , wherein the at least one processor carrying out the action of compensating for the audio signal according to the acoustic transmission function is caused to carry out actions, comprising:
determining a monitoring frequency-response curve of the audio processing device according to the acoustic transmission function; and
compensating for the audio signal by adjusting the monitoring frequency-response curve according to a standard frequency-response curve.

10. The terminal device of claim 8 , wherein the at least one processor carrying out the action of determining the acoustic transmission function of the audio processing device in the ear canal of the user according to the audio signal output from the audio processing device is caused to carry out actions, comprising:
acquiring the audio signal output from the audio processing device;
recording an acoustic echo signal formed by reflection and vibration of the audio signal through the ear canal; and
determining the acoustic transmission function of the audio processing device in the ear canal of the user according to the audio signal and the acoustic echo signal.

11. The terminal device of claim 9 , wherein the at least one processor carrying out the action of determining the monitoring frequency-response curve of the audio processing device according to the acoustic transmission function is caused to carry out actions, comprising:
acquiring a corresponding relationship among acoustic echo signals, acoustic transmission functions, and monitoring frequency-response curves; and
determining the monitoring frequency-response curve of the audio processing device in the ear canal of the user according to the acoustic transmission function and the corresponding relationship.

12. The terminal device of claim 9 , wherein the at least one processor carrying out the action of compensating for the audio signal by adjusting the monitoring frequency-response curve according to the standard frequency-response curve is caused to carry out actions, comprising:
determining difference data between the standard frequency-response curve and the monitoring frequency-response curve; and
adjusting gain parameters of an equalizer according to the difference data, the gain parameters comprising a gain frequency point and a gain value, and the equalizer being disposed in the audio processing device.

13. The terminal device of claim 12 , wherein the at least one processor carrying out the action of determining the difference data between the standard frequency-response curve and the monitoring frequency-response curve is caused to carry out actions, comprising:
judging whether a difference between a gain value corresponding to the standard frequency-response curve and a gain value corresponding to the monitoring frequency-response curve at a same frequency point is within a preset range; and
determining the difference as the difference data, based on a judgment that the difference is not within the preset range.

14. The terminal device of claim 8 , wherein the at least one processor is further caused to carry out actions, comprising:
acquiring age information of the user according to the acoustic transmission function; and
adjusting sound effects of the audio signal subject to the compensating according to the age information.

15. A non-transitory computer-readable storage medium storing a computer program which, when executed by a processor, causes the processor to carry out actions, comprising:
determining an acoustic transmission function of an audio processing device in an ear canal of a user according to a

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• Yan Bixiang

Classifications

• G10K15/12

  using electronic time-delay networks · CPC title

• H04R2430/03

  Synergistic effects of band splitting and sub-band processing · CPC title

• H04R3/04 Primary

  for correcting frequency response · CPC title

• H03G5/025

  Equalizers; Volume or gain control in limited frequency bands · CPC title

• H04R3/12 Primary

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title