Recording method and device

Patent metadata

Field	Value
Publication number	US-12363246-B2
Application number	US-202118042808-A
Country	US
Kind code	B2
Filing date	Jul 22, 2021
Priority date	Aug 25, 2020
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

A distributed recording system includes a first device and one or more second devices. The first device sends a distributed recording instruction, to control the one or more second devices to perform recording. The one or more second devices send audio data obtained through recording to an upper-layer recording application.

First claim

What is claimed is:

1. A recording system, comprising:
a first device configured to:
receive input information of a user; and
send a distributed recording start instruction when a recording mode corresponding to the input information is a distributed recording mode; and

a second device configured to:
receive, from the first device, the distributed recording start instruction;
collect, according to the distributed recording start instruction, first audio data in a first periodicity, wherein the first audio data is first local audio data collected by the second device;
perform human voice enhancement or noise reduction processing on the first audio data in a second periodicity to produce second audio data; and
send the second audio data to the first device in the second periodicity to instruct the first device to invoke at least one piece of the second audio data with a camera application.

2. The recording system of claim 1 , wherein the second device is further configured to collect, based on a recording parameter corresponding to the distributed recording start instruction, the first audio data.

3. The recording system of claim 1 , wherein before the second device sends the second audio data, the second device is further configured to perform compression processing on the first audio data to obtain the second audio data.

4. The recording system of claim 1 , wherein the first device is further configured to decompress the second audio data when the second audio data is compressed.

5. The recording system of claim 1 , wherein when the distributed recording mode comprises a multi-device collaborative recording mode, the first device is further configured to:
collect third audio data, wherein the third audio data is second local audio data collected by the first device; and
invoke, by the camera application, the at least one piece and the third audio data.

6. The recording system of claim 1 , wherein the first device is further configured to:
perform a time alignment operation on a plurality of pieces of the second audio data when the second audio data comprises the plurality of pieces; and
perform the time alignment operation on the at least one piece and third audio data collected by the first device when the recording mode is a multi-device collaborative recording mode.

7. The recording system of claim 5 , wherein before the first device invokes the at least one piece and the third audio data, the first device is further configured to perform the human voice enhancement or the noise reduction processing on the third audio data.

8. The recording system of claim 1 , wherein when the distributed recording mode comprises a first distributed recording sub-mode, the first device is further configured to:
send a distributed recording instruction to the second device; and
receive, from the second device, the second audio data, and
wherein when the distributed recording mode comprises a second distributed recording sub-mode, the first device is further configured to:
send the distributed recording instruction to the second device and a plurality of additional devices; and
receive, from the second device and the plurality of additional devices, the second audio data.

9. The recording system of claim 1 , wherein before the first device sends the distributed recording start instruction, the first device is further configured to send a distributed recording request to the second device, wherein the second device is further configured to:
receive, from the first device, the distributed recording request;
display prompt information on a display of the second device, wherein the prompt information prompts whether to allow the second device to perform distributed recording; and
send a distributed recording response message to the first device, wherein the distributed recording response message indicates whether the second device is allowed to perform the distributed recording, and
wherein the first device is further configured to:
receive, from the second device, the distributed recording response message; and
send, in response to receiving the distributed recording response message, the distributed recording start instruction to the second device.

10. The recording system of claim 1 , wherein the recording mode further comprises a local recording mode and a multi-device collaborative recording mode, wherein the distributed recording mode comprises a first distributed recording sub-mode and a second distributed recording sub-mode, and wherein the first device is further configured to perform switching, based on the input information, among the local recording mode, the first distributed recording sub-mode, the second distributed recording sub-mode, and the multi-device collaborative recording mode.

11. The recording system of claim 1 , wherein the first device is further configured to display a distributed recording icon on a display of the first device.

12. The recording system of claim 1 , wherein the second device is further configured to display a distributed recording prompt icon on a display of the second device.

13. A first device, comprising:
a memory configured to store instructions; and
one or more processors coupled to the memory and configured to execute the instructions to:
receive input information of a user;
send, to a second device, a distributed recording start instruction when a recording mode corresponding to the input information is a distributed recording mode;
receive, from the second device, first audio data;
invoke, by a camera application, at least one piece of the first audio data;
perform a time alignment operation on a plurality of pieces of the first audio data when the first audio data comprises the plurality of pieces; and
perform the time alignment operation on the first audio data and second audio data collected by the first device when the recording mode is a multi-device collaborative recording mode.

14. The first device of claim 13 , wherein the one or more processors are further configured to execute the instructions to decompress the at least one piece when the at least one piece is compressed.

15. The first device of claim 13 , wherein when the distributed recording mode comprises the multi-device collaborative recording mode, the one or more processors are further configured to execute the instructions to:
collect the second audio data, wherein the second audio data is local audio data collected by the first device; and
invoke, by the camera application, the at least one piece and the second audio data.

16. The first device of claim 15 , wherein before invoking the at least one piece and the second audio data, the one or more processors are further configured to perform noise reduction or human voice enhancement on the second audio data.

17. The first device of claim 13 , wherein when the distributed recording mode comprises a first distributed recording sub-mode, the one or more processors are further configured to execute the instructions to:
send a distributed recording instruction to the second device; and
receive, from the second device, the first audio data; and
wherein when the distributed recording mode comprises a second distributed recording sub-mode, the one or more processors are further configured to execute the instructions to:
send the distributed recording instruction to the second device and a plurality of additional devices; and
receive, from the second device and the plurality of additional devices, the first audio data.

18. A second device, comprising:
a m

Assignees

• Huawei Tech Co Ltd

Inventors

• Yang Xiao
• Zhu Zhou
• Zheng Hao
• Zhang Yinan
• Lu Liangfei

Classifications

• G11B2020/10777

  instructions or commands · CPC title

• G11B2020/10537

  Audio or video recording · CPC title

• G11B20/10527

  Audio or video recording; Data buffering arrangements (G11B20/12 - G11B20/18 take precedence) · CPC title

• G10L21/0208

  Noise filtering · CPC title

• G10L13/033

  Voice editing, e.g. manipulating the voice of the synthesiser · CPC title