PS Engineering PAC45 Pilot's Manual And Operation Manual - page 4
Page 4
202-045-0200
August 2017 PAC45 Pilot Guide
You will always hear the audio from the selected transceiver, even if the
selected comm audio is turned all the way down on the audio controller
because it cannot turn the selected receive audio all the way off.
The volume of the received source is adjusted by rotating the knob.
Swap Function
If an optional remotely-mounted button is switched to ground, the transmit
selection will increment from the current selection to the next transceiver
that is selected for receive (knob out). Successive activation of the SWAP
button increments to the next selected transceiver.
Because the rotary transmit selector (XMT) is no longer valid, the selected
transceiver legend flash at 2 Hz, while the indicator that the XMT selector
goes off. Moving the XMT selector to another selection cancels the SWAP
function.
Multi-Talker™ Head Related Transfer Function (HRTF)
Communication receiver audio signals are presented to the DSP and pro-
cessed to “appear” in a different location to the crew. “Multi-Talker” (US
Patent #7,391,877) specifies up to nine locations. This helps the crew to
better comprehend speech by locating it in a manner more
easily differentiated by the human brain.
Intercom and other audio is not spatially processed, only the
six communications transceivers.
You must use stereo headsets, in stereo mode for this fea-
ture.
Multi-Talker® places the communications receiver audio in one of nine
apparent locations in the crew’s headset. This has been scientifically shown
to allow the brain to focus on multiple conversations and improve compre-
hension for the listener.
Pressing the HRTF button toggles the PAC45 Multi-Talker spatial function
on (receiver sources distributed) or off (receiver audio sources neutral). The
HRTF button on the pilot and copilot panels control the function for the
user of that panel.
Audio Location
This adjustment allows the
six Spatial Audio inputs to
be “relocated” on any of
nine (9) pre-defined “Head
Related Transfer Func-
tion” (HTRF) locations.
The pilot panel can control
the locations for the six re-
ceive audio locations for all
users. Press and hold the