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'uso de setVelocity en PannerNode y AudioListener, y speedOfSound, y dopplerFactor y l'AudioListener ye ya obsoleto y ixos miembros se borrarán. Pa mas aduya, mire-se https://developer.mozilla.org/en-US/docs/Web/API/AudioListener#Deprecated_features