Use of setVelocity on the PannerNode and AudioListener, and speedOfSound and dopplerFactor on the AudioListener are deprecated and those members will be removed. For more help https://developer.mozilla.org/en-US/docs/Web/API/AudioListener#Deprecated_features
L'uzo de setVelocity in sce PannerNode e AudioListener, coscì comme l'uzo de speedOfSound e dopplerFactor in sce AudioListener o l'é deprecou e sti metode saian scancelæ. Pe saveine de ciù amia https://developer.mozilla.org/docs/Web/API/AudioListener#Deprecated_features