Trill identification method and trill identification device

Abstract

The invention discloses a trill identification method and a trill identification device. The trill identification method comprises steps that target audio data corresponding to a target song comprising at least one identification note is acquired; the audio data fragment of the target audio data corresponding to the identification note is extracted, and the first fundamental frequency of the audio data fragment is extracted, and then a corresponding first note value sequence is acquired; the first note value sequence is divided into at least two note value sequence fragments according to at least one preset periodic value, and by aiming at every preset periodic value, a note distance between the two adjacent note value sequence fragments of the at least two note value sequence fragments is calculated, and is used as the periodic note distance corresponding to the periodic value; the minimum value of the periodic note distance is determined, and a target period corresponding to the minimum value is acquired; when the target period is smaller than a preset periodic threshold value, the target audio data is determined to be trill audio data. By adopting the trill identification method and the trill identification device, the identification of the trills of the audio data is realized.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a tremolo recognition method and device. Background technique [0002] With the continuous development and improvement of terminal technology, terminal devices such as mobile phones and tablets have become an indispensable part of people's lives. Users can realize various application functions by installing various application programs on the terminal, so as to satisfy users. Different needs in daily life, for example, music software or karaoke software. In existing music software or karaoke software, in addition to downloading or playing music files commonly used, users can also sing songs and share the songs they sing. For example, after a user has recorded his a cappella work or a singing work with background music accompaniment of a corresponding song through the terminal, he can upload the corresponding work so that he and other users can view it. [0003] In some son...

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Problems solved by technology

[0005] Based on this, in order to solve the technical problem in the prior art that it is impossible to identify whether the tremolo is displayed in the interpretation of the song, in the embodiment of the present invention, a vibrato recognition method is provided

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