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Copyright© 2011 Octet Matrix Audio
4)
If the channels are reversed, check the wiring into the transmitter and re-route the
wires if necessary. If the wiring to the transmitter is correct, check all other system
wiring and fix any incorrect channel routing.
5)
Track 3 is a phase verification track to confirm that speaker to speaker phase is correct.
To use this track effectively, you should be centered between the speakers and 3' - 5'
away. The track alternates between the spoken phrase “In phase” followed by pink
noise played in phase, and “out of phase” followed by pink noise played out of phase.
Both the voice introduction and the pink noise will be either in phase or out of phase.
6)
When everything is set up correctly, you should hear:
a.
In Phase - the voice and the pink noise will have a clearly defined point of origin
centered between the speakers.
b.
Out of Phase - the voice and pink noise will have no clearly defined origin and may
even sound as if the sound originates outside of the speakers.
c.
There will also be a distinct difference in bass levels with the pink noise. The pink noise
will sound fuller (more bass) when in phase, and thinner (less bass) when out of phase.
7)
If you hear the opposite effects, check the wiring into the transmitter. In some cases,
the equipment setup or environment can cause confusing results. If the wiring seems
correct, try moving your listening position towards the speakers and move slightly to
one side of center, listen, and then move slightly to the other side of center and listen. If
you still don’t hear what you think you ought to, try reversing only the left input wire
polarity and perform the phase test again.
Dynamic Range Optimization
1)
Determine the maximum system level via the main system volume control. If you have
several sources (CD player and DVD player, for example), you must use the source with
the highest analog output with the 0 dBFS test signal. See Advanced Test Procedures
section for determination of the source with the highest output.
2)
Set the transmitter volume control to the 9:00 position.
3)
Confirm that both wireless speaker volume controls are set to the 12:00 position.
4)
Disconnect all other speakers and set the main system volume control to the maximum
level determined in step 1.
5)
Place the Octet Matrix Audio test CD into the source selected in step 1 and select track 5
(or select the 0 dBFS track copied to MP3 player, iPod, iPhone, etc).
6)
Adjust the transmitter volume control up until you hear distortion. The onset of
distortion will be obvious, with a clear transition point. Back the transmitter volume
control off slightly until the distortion disappears. This setting should not have to be
changed again unless system component changes are made.
