highfidelity/hifi — pull request #3316 by chansensturm (2014-08-25 18:00:07+00:00)
Title: add support for head-shadow/penumbra filter for positional audio streams

When positional audio sources are behind the listener, we selectively apply low-pass filtering to simulate a HRTF. Feature may be enabled/disabled using the new audio-mixer settings in domain server.