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'usu de setVelocity nel PannerNode y AudioListener, asina como'l speedOfSound y dopplerFactor nel AudioListener son obsoletos, y estos miembros van desaniciase. Pa más ayuda https://developer.mozilla.org/en-US/docs/Web/API/AudioListener#Deprecated_features