Pitch jitter correction method, device and system, audio and video equipment and mobile terminal

Abstract

The invention provides a pitch jitter correction method. A standard pitch value and a singing cursor of a song are displayed on a screen; real-time voice frequency of a singer singing the song is recorded, and a singing pitch value of the real-time voice frequency is calculated; whether the singing pitch value of the real-time voice frequency is consistent with the standard pitch value is judged, if the singing pitch value of the real-time voice frequency is not consistent with the standard pitch value, correction is conducted on the coordinate corresponding to the singing pitch value by reducing a difference value between the coordinate corresponding to a singing pitch value at the current moment and the coordinate of the singing cursor at the former moment or the coordinate of the standard pitch value at the current moment, the singing cursor is displayed on the correction position, and therefore the motion trail of the singing cursor is displayed smoothly; if the singing pitch value of the real-time voice frequency is consistent with the standard pitch value, the singing cursor is directly displayed on the position where the standard pitch value is located. The invention further provides a pitch jitter correction device and system, audio and video equipment and a mobile terminal. The pitch jitter correction method improves position matching accuracy of the pitch of the singer and the standard pitch, and enables the singer to see the singing cursor more easily.

Description

Technical field [0001] The present invention relates to the technical field of information processing, in particular to a method, device, system, audio and video on-demand equipment and mobile terminal for correcting pitch jitter. Background technique [0002] The pitch scoring system is an electronic device and computer program that uses sound as input data, and after the processor performs calculations to obtain quantized parameters, it is finally fed back to the user by the graphic interface of the display, so that it can adjust its singing voice to meet the standard requirements. . The standard pitch system singing display interface generally contains the following 2 elements: [0003] 1. Pitch information: According to the song sheet, the pitch of the corresponding time will be displayed on the staff for the singer's reference; [0004] 2. Singing cursor: reflect the quantized pitch of the singer's voice. [0005] In the singing interface of the existing pitch scoring system, t...

AI Technical Summary

Problems solved by technology

[0008] 1. The real-time pitch of the singer is not stable. Directly convert the pitch value into vertical coordinates and draw the singing cursor, which will cause the singing cursor to shake, jump and other movement tracks, which will deviate from the previous track point or standard to a large extent. The position of the pitch on the interface appears in an unexpected position of the singer, which is not conducive to the singer to observe the singing cursor;

[0009] 2. During the singing process, there is a moment when the part that needs to be sung enters the part that does not need to be sung. At this time, the singing cursor returns to the non-singing position from the singing pitch value display position

In general intonation scoring system interface, the non-singing position of the singing cursor is close to or the same as the coordinate of the lowest displayed pitch value. At this time, the singing cursor suddenly returns to the non-singing position, and it is difficult for the singer to judge whether it is caused by his own singing mistakes, or just right. caused by entering the non-singing part;

[0010] 3. The change of the pitch of the actual singer is a gradual process, but the comprehensive interface performance such as the jitter and jump of the singing cursor does not conform to this rule, and the singer can only obtain a visual experience that does not fully conform to the law of his own pronunciation

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