Help integrate Audio Visualizer

[ABOATDev]

En :

Hello the community

demo : https://streamable.com/s/sbqqi/jiwlkc

How to integrate code into the magic mirror? https://codepen.io/TheVVaFFle/full/MOoQyO/ ( open source : https://bayfiles.com/F1b4F2k4b0 and https://codepen.io/TheVVaFFle/pen/MOoQyO) OR https://codepen.io/nelsonr/full/WamzJb/
How to analyze the sound coming out of the raspeberry and without drop file? (ex : https://codepen.io/r21nomi/pen/OBEqbQ)
Analyze audio in to the Bluetooth

Thank you very much.
PS: I am French

fr :
Comment intégrer se code au magic mirror ?
Comment faire pour analyser le son qui sors de la raspeberry et sans drop file ?

Merci beaucoup