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
O uso de setVelocity en PannerNode e AudioListener, e de speedOfSound e dopplerFactor en AudioListener está desfasado e retiraranse eses membros. Para obter máis axude visite https://developer.mozilla.org/en-US/docs/Web/API/AudioListener#Deprecated_features