Input Mixer
Each input may be mixed for standard stereo, dual left, dual right, inverted L/R or
mono. Mixing for dual left or right takes the left/right input and routes it to both chan-
nels. Mixing to mono does not compromise frequency response or performance while
left and right images are combined so all of the content is available to every speaker.
Analog and Digital Zone Outputs
Analog outputs are included on every UltraMatrix chassis at the rate of two pair of an-
alog outputs for each video output. Analog inputs are routed to analog outputs without
compromise. Digital inputs have some rules which can be reviewed above in “Input
Format Conversion”. All analog outputs have a DSP circuit which provides tone control
and EQ, lip sync delay, and channel mixing. These specific features are described in
detail below.
Digital signals are routed through two paths. When a digital input is routed to a digital
output it is a direct connection without DSP or any other modifications. Multi-channel
signals are preserved in this method.
When analog signals are routed to digital outputs they must pass through an analog
to digital chip and the DSP chip (see Appendix B for a audio circuit diagram). Since
the DSP chip only exists on analog outputs UltraMatrix switchers require that the digi-
tal output mirrors an analog output. For example digital output Coax 33 mirrors Analog
1 on a gMV1616 switcher. These assignments are performed in g! Configurator and
g! makes it easy to use the correct connections. When a digital output is set to mirror
an analog output both outputs are fixed level outputs and may be utilized in system
hookup. This could be convenient if you want a wet bar next to the rec room to have
a speaker while the rec room is connected to an AVR. A wall mounted volume control
would provide amplitude adjustment for the bar speakers in this scenario.
If lip sync, EQ, or channel mixing is required for a digital input the input must be in
2ch PCM format and the digital output configured to mirror an analog output. The
UltraMatrix switcher will then allow for full DSP manipulation of the digital signal.
Unlike the ELAN S1616A all analog outputs are assigned to a zone in pairs and each
pair is recognized as a single zone. Grouping outputs together to act as one zone
may be accomplished permanently (Sub Zoning) or at the end-users discretion (Zone
Grouping). Both are explained below.
HDMI Audio Zones
Often rooms are configured with a nice sound bar connected to the display. Many
times it doesn’t make sense to also include audio only speakers in the ceiling, but we
do it because there is no effective way to route zone audio to the display. UltraMatrix
switchers allow analog and digital audio only sources to be routed to the display, and
for the display to be used as the zone controller. As the zone controller the display
routes the incoming audio signal to the sound bar via its audio output with fixed or
variable volume control. This allows anything plugged locally into the TV as well as any
audio/video or audio only source to play through the sound bar. When an audio only
source is connected the UltraMatrix switcher sends the TV a black screen.
This arrangement also works well when using just the TV’s internal speakers. Take the
example of the laundry room where the customer wanted just TV but no music. After
living in the home a few weeks the customer is sorry that they did not ask for speak-
ers in that room. Offering the client music from their TV may just sate their need. If not
you can add a sound bar to the TV for higher quality sound.
Designer’s Guide
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