Method and apparatus for transmitting audio

• US 10,679,604 B2
• Filed: 10/03/2018
• Issued: 06/09/2020
• Est. Priority Date: 10/03/2018
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Tang, Yumin, Qiu, Cunshou
• Primary Examiner(s): Alunkal, Thomas D
• Application Number:
  US16/151,087
• Publication Number:
  US 20200111473A1
• Time in Patent Office: 615 Days
• CPC Class Codes: G10K 11/18 Methods or devices for transmitting, conducting or directing sound G10K11/02, G10K11/36 take precedence
• CPC Class Codes: H04L 65/1059 End-user terminal functionalities specially adapted for real-time communication
• CPC Class Codes: H04L 65/1083 In-session procedures
• CPC Class Codes: H04L 65/61 for supporting one-way streaming services, e.g. Internet radio
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 3/00 Circuits for transducers , loudspeakers or microphones

Abstract

A method for transmitting audio is disclosed that includes transmitting, by a sending terminal, a sending audio signal to a receiving terminal after a connection between the sending terminal and the receiving terminal is established, the sending audio signal comprises a sending audio, receiving a playing audio played by the receiving terminal; and determining that the sending audio is not played by the receiving terminal based on the sending audio and the playing audio, notifying that the sending audio transmitted to the receiving terminal is not played by the receiving terminal.

Claims

1. A method for transmitting audio, comprising:

transmitting, by a sending terminal, a sending audio signal to a receiving terminal after a connection between the sending terminal and the receiving terminal is established, the sending audio signal comprising a sending audio;

receiving, by a microphone of the sending terminal, a playing audio played by the receiving terminal;

determining, by the sending terminal, that the sending audio is not played by the receiving terminal based on the sending audio and the playing audio; and

notifying, by the sending terminal, that the sending audio transmitted to the receiving terminal is not played by the receiving terminal.

2. The method according to claim 1, wherein a recording flag instructs the sending terminal whether to store the sending audio, the method further comprising:

determining, by the sending terminal, that the recording flag is true; and

storing, by the sending terminal, the sending audio based on the recording flag set to true.

3. The method according to claim 1, wherein before receiving the playing audio, the method further comprises:

turning, by the sending terminal, on the microphone of the sending terminal.

4. The method according to claim 1, wherein a sampling time identifying a time for obtaining a sending sample from the sending audio is set by the sending terminal, before determining that the sending audio is not played by the receiving terminal, the method further comprising:

determining, by the sending terminal, that a time of transmitting the sending audio is longer than the sampling time.

5. The method according to claim 4, wherein after determining that the time of transmitting the sending audio is longer than the sampling time, the method further comprises:

setting, by the sending terminal, a recording flag to false.

6. The method according to claim 1, wherein the method further comprises:

determining, by the sending terminal, a similarity value ρ

_AsAm(k) between the sending audio and the playing audio; and

wherein determining that the sending audio is not played by the receiving terminal comprises;

determining, by the sending terminal, that the similarity value ρ

_AsAm(k) is smaller than a similarity threshold ρ

_Th, wherein the similarity threshold ρ

_Th is stored in the sending terminal.

7. The method according to claim 6, wherein the determining the similarity value ρ

_AsAm(k) comprises;

determining, by the sending terminal, the similarity value ρ

_AsAm(k) by using an algorithm stored in the sending terminal, wherein the algorithm comprises;

8. The method according to claim 1, further comprising:

determining, by the sending terminal, a delay time for playing the sending audio played by the receiving terminal.

9. The method according to claim 8, wherein a sampling time identifying a time for obtaining a sending sample from the sending audio is set by the sending terminal, the method further comprising:

obtaining, by the sending terminal, the sending sample from the sending audio based on the sampling time; and

obtaining, by the sending terminal, a playing sample from the playing audio based on the sampling time and the delay time.

10. The method according to claim 9, wherein determining that the sending audio is not played by the receiving terminal comprises:

determining, by the sending terminal, a similarity value between the playing sample and the sending sample is smaller than a similarity threshold stored in the sending terminal.

11. The method according to claim 1, the receiving terminal is a Bluetooth device.

12. A sending terminal, comprising:

a transceiver that transmits a sending audio signal to a receiving terminal after a connection between the sending terminal and the receiving terminal is established, the sending audio signal comprising a sending audio, and receives, using a microphone, a playing audio played by the receiving terminal; and

a processor configured to determine that the sending audio is not played by the receiving terminal based on the sending audio and the playing audio and notify that the sending audio transmitted to the receiving terminal is not played by the receiving terminal.

13. The sending terminal according to claim 12, wherein a recording flag instructs the sending terminal whether to store the sending audio, wherein the processor is configured to determine that the recording flag is true and store the sending audio based on the recording flag being determined to be true.

14. The sending terminal according to claim 12, wherein the processor is configured to turn on the microphone of the sending terminal before the transceiver receives the playing audio.

15. The sending terminal according to claim 12, wherein a sampling time identifying a time for obtaining a sending sample from the sending audio is set by the sending terminal, wherein the processor is configured to determine that a time of transmitting the sending audio is longer than the sampling time before determining that the sending audio is not played by the receiving terminal.

16. The sending terminal according to claim 15, wherein the processor is configured to set a recording flag to false after determining that the time of transmitting the sending audio is longer than the sampling time.

17. The sending terminal according to claim 12, wherein the processor is configured to determine a similarity value ρ

_AsAm(k) between the sending audio and the playing audio; and

wherein the processor is configured to determine the sending audio is not played by the receiving terminal comprises;

the processor is configured to determine that the similarity value ρ

_AsAm(k) is smaller than a similarity threshold ρ

_Th, wherein the similarity threshold ρ

_Th is stored in the sending terminal.

18. The sending terminal according to claim 12, wherein the processor is configured to determine a delay time for playing the sending audio played by the receiving terminal.

19. A method for transmitting audio, comprising:

transmitting, by a sending terminal, a sending audio signal to a receiving terminal after a connection between the sending terminal and the receiving terminal is established, the sending audio signal comprising a sending audio;

receiving, by a microphone of the sending terminal, a playing audio played by the receiving terminal;

determining, by the sending terminal, that the sending audio is played by the receiving terminal based on the sending audio and the playing audio; and

transmitting, by the sending terminal, a subsequent sending audio signal to the receiving terminal based on the determination of the sending audio is played by the receiving terminal.

20. A sending terminal, comprising:

a transceiver that transmits a sending audio signal to a receiving terminal after a connection between the sending terminal and the receiving terminal is established, the sending audio signal comprising a sending audio, and receives, using a microphone, a playing audio played by the receiving terminal; and

a processor that determines that the sending audio is played by the receiving terminal based on the sending audio and the playing audio;

wherein the transceiver further transmits a subsequent sending audio signal to the receiving terminal based on the determination of the sending audio is played by the receiving terminal.