Directional propagation method and apparatus for audio signal, a terminal device and a storage medium

• US 10,694,291 B2
• Filed: 07/30/2018
• Issued: 06/23/2020
• Est. Priority Date: 08/02/2017
• Status: Active Grant

• Current Assignee: Yulong Computer Telecommunications Scientific Company Limited (Coolpad Group Limited)
• Original Assignee: Yulong Computer Telecommunication Scientific (Shenzhen) Co., Ltd
• Inventors: Zhang, Zijing
• Primary Examiner(s): Yu, Norman
• Application Number:
  US16/049,704
• Publication Number:
  US 20190045303A1
• Time in Patent Office: 694 Days
• Field of Search: 381387, 381107, 381313, 381 92
• CPC Class Codes: H04R 1/323 for loudspeakers H04R1/34 and H04R1/40 take precedence
• CPC Class Codes: H04R 1/403 loud-speakers
• CPC Class Codes: H04R 2430/01 Aspects of volume control, not necessarily automatic, in sound systems
• CPC Class Codes: H04R 3/12 for distributing signals to two or more loudspeakers specially adapted for hearing aids H04R25/407

Abstract

The present disclosure discloses a directional propagation method and apparatus for audio signal, a terminal device and a storage medium. The method comprises acquiring a current location of a target user and audio data corresponding to the target user; propagating audio signal corresponding to said audio data towards said current location in a directional manner. By acquiring a current location of a target user in real time, this technical solution dynamically adjusts the audio data corresponding to the target user to be propagated in a directional manner towards said current location, wherein different audio data types (e.g. Chinese language audio or English language audio) may correspond to different target users, in such a way, it can be realized that different audio signals are propagated in a directional manner towards different locations.

Claims

1. A directional propagation method for audio signal, comprising:

acquiring a current location of each of a plurality of target users and audio data corresponding to the each of the plurality of target users; and

propagating audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner, comprising;

calculating a current angle between a speaker and the each of the plurality of target users according to said current location;

obtaining a current propagation range by using said current angle plus and minus a predetermined angle; and

propagating the audio signal corresponding to said audio data into said current propagation range in a directional manner, wherein the predetermined angle increases as a number of the plurality of target users decreases and decreases as the number of the plurality of target users increases, and a type of audio data propagated towards the each of the plurality of target users is different from one another.

2. The directional propagation method of claim 1, wherein propagating audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner comprises:

calculating a current distance between a speaker and the each of the plurality of target users according to said current location;

determining a sound production power for the speaker according to said current distance; and

propagating the audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner with said sound production power.

3. The directional propagation method of claim 2, wherein determining a sound production power for the speaker according to said current distance comprises:

increasing the sound production power along with an increase of said current distance.

4. A terminal device, comprising:

at least one processor; and

a memory communicably connected with the at least one processor for storing instructions executable by the at least one processor, wherein execution of the instructions by the at least one processor causes the at least one processor to;

acquire a current location of each of a plurality of target users and audio data corresponding to the each of the plurality of target users; and

propagate audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner, to propagate the audio signal being performed by;

calculating a current angle between a speaker and the each of the plurality of target users according to said current location;

obtaining a current propagation range by using said current angle plus and minus a predetermined angle; and

propagating the audio signal corresponding to said audio data into said current propagation range in a directional manner, wherein the predetermined angle increases as a number of the plurality of target users decreases and decreases as the number of the plurality of target users increases, and a type of audio data propagated towards the each of the plurality of target users is different from one another.

5. The terminal device of claim 4, wherein to propagate audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner is performed by:

calculating a current distance between a speaker and the each of the plurality of target users according to said current location;

determining a sound production power for the speaker according to said current distance; and

propagating the audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner with said sound production power.

6. The terminal device of claim 5, wherein determining a sound production power for the speaker according to said current distance comprises:

increasing the sound production power along with an increase of said current distance.

7. A computer readable storage medium, wherein, the computer readable storage medium stores computer instructions for causing a computer to:

acquire a current location of each of a plurality of target users and audio data corresponding to the each of the plurality of target users; and

propagate audio signal corresponding to said audio data towards the each one of the plurality of target users at said current location in a directional manner, to propagate the audio signal being performed by;

calculating a current angle between a speaker and the each of the plurality of target users according to said current location;

obtaining a current propagation range by using said current angle plus and minus a predetermined angle; and

propagating the audio signal corresponding to said audio data into said current propagation range in a directional manner, wherein the predetermined angle increases as a number of the plurality of target users decreases and decreases as the number of the plurality of target users increases, and a type of audio data propagated towards the each of the plurality of target users is different from one another.

8. The computer readable storage medium of claim 7, wherein to propagate audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner is performed by:

calculating a current distance between a speaker and the each of the plurality of target users according to said current location;

determining a sound production power for the speaker according to said current distance; and

propagating the audio signal corresponding to said audio data towards the each of the plurality of target users at said current location in a directional manner with said sound production power.

9. The computer readable storage medium of claim 8, wherein determining a sound production power for the speaker according to said current distance comprises:

increasing the sound production power along with an increase of said current distance.