ioquake/ioq3 — pull request #52 by MAN-AT-ARMS (2014-02-22 23:03:29+00:00)
Title: Replace deprecated alDopplerVelocity with alDopplerSpeedOfSound

OpenAL 1.1 spec replaces alDopplerVelocity with alDopplerSpeedOfSound
alDopplerVelocity is/was not implemented uniformly across platforms