A method and system for displaying song rhythm

Abstract

The invention provides a display method and system for a song rhythm. The method comprises: according to a preset collection period, audio data of a song are obtained; a frequency amplitude of the audio data is obtained; a beat value of the audio data is obtained; the audio data are displayed based on the beat value and the frequency amplitude, wherein the display speed of the audio amplitude is determined based on the beat value. According to the invention, the beat value of the audio data is obtained and the audio data are displayed by combining the frequency amplitude; and the display speed of the audio amplitude is determined by the beat value. The music rhythm, beat, and frequency can be displayed vividly and visually and the music rhythm is represented perfectly based on combination of the rhythm, beat, and frequency; and the good visual enjoying experience can be provided for the audience and the active music atmosphere can be created.

Description

technical field

[0001] The invention relates to the field of audio signal processing, in particular to a song rhythm display method and system thereof. Background technique

[0002] The music player in the prior art not only supports the playing of music, but also can display the level of the music in the form of a dynamic music spectrum during the playing of the music. In the music spectrum of the prior art, by obtaining the audio data (PCM data) of music in real time, the audio data is subjected to Fourier transform, and after the audio signal is transformed from the time domain to the frequency domain signal, each discrete frequency corresponds to a amplitude. The music spectrum uses the amplitude to determine the height of the spectrum animation display; but such a music spectrum can only reflect the height and strength of the music (the stronger the treble, the peak will be to the right; the stronger the bass, the peak will be to the left), while the music In fact, th...

Examples

Embodiment 1

[0089] Please refer to figure 1 , figure 2 , Figure 4 , Figure 5 and Figure 6 , Embodiment 1 of the present invention is:

[0090] Provides an audio spectrum that demonstrates the rhythm of the music, including:

[0091] S1: Obtain an audio data of a song according to a preset collection period;

[0092] During the music playing process, the music is recorded, and the acquisition cycle (sampling rate) is set to 48K to obtain PCM audio data, and the PCM audio data is sent to the application layer for processing. Due to the fixing of the acquisition period, the time from acquisition to processing is also fixed, that is, the number of beats obtained is fixed. In the present invention, what we want to extract is the number of notes (beats) contained in the above-mentioned fixed number of beats. Number), that is, the beat value, which reflects the rhythm of the music.

[0093] S2: Obtain the frequency amplitude of the audio data;

[0094] Specifically, preferably, the f...

Embodiment 2

[0139] Please refer to image 3 , the second embodiment of the present invention is:

[0140] A digital audio-visual system, including a set-top box and a display screen, the set-top box is connected to the display screen; the set-top box includes a first main board and a second main board; the first main board includes a preset module 1 and a first acquisition module 2;

[0141] The second motherboard includes a second acquisition module 3, and the second acquisition module 3 may specifically include a first acquisition unit, a second acquisition unit, and a third acquisition unit;

[0142] The preset module 1 is used to acquire an audio data of a song according to a preset acquisition period, and a display mode of a preset frequency spectrum;

[0143] The first acquiring module 2 is configured to acquire the frequency amplitude of the audio data, and send the frequency amplitude to the second main board;

[0144] The second acquisition module 3 is used to acquire the beat ...

technical field

[0001] The invention relates to the field of audio signal processing, in particular to a song rhythm display method and system thereof. Background technique

[0002] The music player in the prior art not only supports the playing of music, but also can display the level of the music in the form of a dynamic music spectrum during the playing of the music. In the music spectrum of the prior art, by obtaining the audio data (PCM data) of music in real time, the audio data is subjected to Fourier transform, and after the audio signal is transformed from the time domain to the frequency domain signal, each discrete frequency corresponds to a amplitude. The music spectrum uses the amplitude to determine the height of the spectrum animation display; but such a music spectrum can only reflect the height and strength of the music (the stronger the treble, the peak will be to the right; the stronger the bass, the peak will be to the left), while the music In fact, th...

Examples

Embodiment 1

[0089] Please refer to figure 1 , figure 2 , Figure 4 , Figure 5 and Figure 6 , Embodiment 1 of the present invention is:

[0090] Provides an audio spectrum that demonstrates the rhythm of the music, including:

[0091] S1: Obtain an audio data of a song according to a preset collection period;

[0092] During the music playing process, the music is recorded, and the acquisition cycle (sampling rate) is set to 48K to obtain PCM audio data, and the PCM audio data is sent to the application layer for processing. Due to the fixing of the acquisition period, the time from acquisition to processing is also fixed, that is, the number of beats obtained is fixed. In the present invention, what we want to extract is the number of notes (beats) contained in the above-mentioned fixed number of beats. Number), that is, the beat value, which reflects the rhythm of the music.

[0093] S2: Obtain the frequency amplitude of the audio data;

[0094] Specifically, preferably, the f...

Embodiment 2

[0139] Please refer to image 3 , the second embodiment of the present invention is:

[0140] A digital audio-visual system, including a set-top box and a display screen, the set-top box is connected to the display screen; the set-top box includes a first main board and a second main board; the first main board includes a preset module 1 and a first acquisition module 2;

[0141] The second motherboard includes a second acquisition module 3, and the second acquisition module 3 may specifically include a first acquisition unit, a second acquisition unit, and a third acquisition unit;

[0142] The preset module 1 is used to acquire an audio data of a song according to a preset acquisition period, and a display mode of a preset frequency spectrum;

[0143] The first acquiring module 2 is configured to acquire the frequency amplitude of the audio data, and send the frequency amplitude to the second main board;

[0144] The second acquisition module 3 is used to acquire the beat ...

Images