Source:setCone
Available since LÖVE 0.9.0 This function is not supported in earlier versions. Sets the Source's directional volume cones. Together with Source:setDirection, the cone angles allow for the Source's volume to vary depending on its direction. Function Synopsis Source:setCone( innerAngle, outerAngle, outerVolume ) Arguments number innerAngle The inner angle from the Source's direction, in radians. The Source will play at normal volume if the listener is inside the cone defined