I searched several data.
Among them, Wavesurfer.js was ideal, but it seems that it is impossible to use in Nestjs.
I also want to get 1000(ex.) Number arrays, whether it's a one -second music or a 100 -second music.
And I used a keyword called numOfSample in waveform-node, but I couldn't use it properly.
If not, I wonder if there is a way to get the average value by setting the number of sampling in the audiowaveform command.