A rhythm point recognition method and device, an electronic device and a storage medium

A recognition method and rhythm technology, applied in the field of signal processing, can solve the problems of long music update cycle and high time cost of rhythm point recognition, and achieve the effect of improving the accuracy rate

Active Publication Date: 2019-04-23
BEIJING BYTEDANCE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, rhythm points are generally determined by manual labeling, resulting in high time costs for rhythm point recognition, and at the same time, the music update cycle in music interactive applications is long

Method used

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  • A rhythm point recognition method and device, an electronic device and a storage medium
  • A rhythm point recognition method and device, an electronic device and a storage medium
  • A rhythm point recognition method and device, an electronic device and a storage medium

Examples

Experimental program
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Embodiment 1

[0070] Figure 1a It is a flowchart of a rhythm point recognition method provided by Embodiment 1 of the present disclosure. This embodiment is applicable to the situation of recognizing rhythm points in a piece of audio signal. The method can be executed by a rhythm point recognition device, which can adopt Realized by means of software and / or hardware, the device can be configured in electronic equipment, such as a typical computer. Such as Figure 1a As shown, the method specifically includes the following steps:

[0071] S110. Determine at least one candidate rhythm point in the audio signal according to the spectral characteristics of the audio signal to be identified, and acquire a start time corresponding to each candidate rhythm point.

[0072] The audio signal to be recognized refers to an audio signal generated by preprocessing the original audio signal. Generally speaking, the original audio signal refers to a continuous time-domain signal, but since the computer c...

Embodiment 2

[0105] Figure 2a It is a flow chart of a rhythm point recognition method provided in Embodiment 2 of the present disclosure. This embodiment is embodied on the basis of each optional solution in the foregoing embodiments. In this embodiment, according to the spectral characteristics of the audio signal to be identified, at least one candidate rhythm point is determined in the audio signal, and the starting time corresponding to each candidate rhythm point is obtained, specifically as follows: performing grouping processing on each signal point in the audio signal, wherein each grouping includes a set number of adjacent signal points, and the signal points included in different groups are different or partially overlapped; according to each signal point in each grouping According to the signal frequency domain characteristic parameters of the points, calculate the grouping frequency domain characteristic parameters corresponding to each group; according to the grouping freque...

Embodiment 3

[0139] image 3 It is a flow chart of a rhythm point recognition method provided by Embodiment 3 of the present disclosure. This embodiment is embodied on the basis of each optional solution in the foregoing embodiments.

[0140] Correspondingly, the method of this embodiment may include:

[0141] S301. Group each signal point in the audio signal, where each group includes a set number of adjacent signal points, and the signal points included in different groups are different or partially overlapped.

[0142] S302. Calculate, according to the signal frequency domain characteristic parameters of each signal point in each group, a group frequency domain characteristic parameter corresponding to each group.

[0143] S303, taking a set number of consecutive groups as a group set.

[0144] S304. When it is determined that the group set satisfies the frequency-domain feature threshold condition, use the first group in the group set as a candidate target group.

[0145] S305. Eli...

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Abstract

The invention discloses a rhythm point recognition method and device, an electronic device and a storage medium. The method comprises the following steps of determining at least one alternative rhythmpoint in an audio signal according to the spectral characteristics of the audio signal to be identified, and obtaining the starting point time corresponding to each alternative rhythm point; mappingeach alternative rhythm point into a trend fitting envelope signal of the audio signal according to the corresponding starting point time, and determining a target rhythm point in each alternative rhythm point according to the waveform characteristics of the trend fitting envelope signal; and determining volume information corresponding to each target rhythm point according to the beat informationof the audio signal, fitting an envelope signal and the beat information of the audio signal according to the fluctuation of the audio signal, and determining the duration corresponding to each target rhythm point. According to the embodiment of the invention, the rhythm points can be automatically and accurately identified, and the rhythm point identification efficiency is improved.

Description

technical field [0001] Embodiments of the present disclosure relate to signal processing technologies, and in particular to a rhythm point recognition method, device, electronic equipment, and storage medium. Background technique [0002] With the development of communication technology and electronic equipment, various electronic equipment such as mobile phones and tablet computers have become an indispensable part of people's work and life, and with the increasing popularity of electronic equipment, interactive applications have become a communication and The main channel of entertainment. [0003] At present, the music interactive application can display interactive prompts to the user according to the rhythm of the music, and the user can input interactive operations according to the interactive prompts, thereby realizing the activation and display of video special effects. However, at present, rhythm points are generally determined by manual labeling, resulting in high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/632G06F16/63G10L25/51
CPCG10L25/51
Inventor 范旭
Owner BEIJING BYTEDANCE NETWORK TECH CO LTD
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