3D Audio - Garmin GMA 350H Pilot's Manual

GMA 350H Audio Panel

3D AUDIO

3D Audio is useful when multiple audio sources are present. By using
different responses in each ear, 3D audio processing creates the illusion that
each audio source is coming from a unique location or seat position.
Because this feature uses different signals for left and right channels, it
requires wiring for stereo intercom and stereo headsets. If 3D audio is
activated when mono headsets are in use, the listener will still hear all audio
sources; however, there is no benefit from location separation.
With a single COM selected and 3D Audio enabled, the listener hears the
audio source at the 12 o'clock position. If all three COMs are selected, the
listener hears the audio sources at the 11, 12 and 1 o'clock positions with
the COM numbers increasing clockwise. If two COMs are selected, the
listener hears COM1 at the 11 o'clock position and COM2 at the 1 o'clock
position. All other intercom positions are processed to sound like their
relative seat location. By default, the GMA 350H assumes the pilot sits in
the right seat. A Garmin authorized service center can make changes to the
default configuration.
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Press and hold the PILOT Key to toggle 3D audio processing on and
off for all headset positions. When 3D Audio is enabled, the aural
message "3D audio left" is heard in the left ear followed by "3D audio
right" in the right ear.
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Garmin GMA 350H Pilot's Guide 190-01134-14 Rev. C