Input A/B Channel Edit Menu - Phonic i2600 Manual Del Usuario

Input A/B Channel Edit Menu

From the Default Screen it is possible to access the Input A/B
menu by pushing the A or B button and maintaining it pressed for
around 2 seconds; a simple push of the A and B buttons will set
the related channel in MUTE and turn on the red LED ON. Once
the button is pressed for at least 2 seconds then the related blue
EDIT LED will turn ON. The Sub Menu pages can now be scrolled
through by rotating the NAV/PM1 encoder clockwise or counter
clockwise.
For parameter editing it is necessary to press ENTER and an arrow
(->) will appear on the left of the screen. Then use the PM2 and
PM3 encoders can be used for selecting and setting the parameter
values. On some parameters that have three independent values
you will also need to use the NAV/PM1 encoder.
Note 1: Once the desired options have been selected using the 3
encoders, they are automatically saved as current and stored in
the i2600 when leaving this page.
Note 2: To exit this page, push the ESC button.
Note 3: The options selected in many of the following submenus
will affect only the selected channel if operating in Dual Mono
Mode, or both channels if operating in Stereo Mode.
Audio Signal Source (A/B)
Source – from this screen it is possible to assign your desired
source to the selected input (if operating in Dual Mono Mode, or to
both inputs if operating in Stereo mode). The source signal can be
selected between Analog, Digital or Pink Noise and tone (where
the Pink Noise and tone are internally generated for Environmental
test purposes and used when operating through the PC Remote
Control connection the RTA available in the unit for automatically
setting the 15 band Graphic EQ). To select the desired source
press ENTER an arrow (->) will appear on the left of the screen.
The PM2 and PM3 encoders can then be used to adjust the
selected source.
Input -A&B
Source = Analog
Noise Gate Byp – from this screen it is possible to turn ON or
OFF the available Noise Gate on the Inputs path. Press ENTER
an arrow will appear on the left of the screen. Then use the PM2
or PM3 encoders to determine the on/off status of the noise gate.
Input -A&B
Noise Gate Byp = On
Editing Noise Gate Settings through PC Software
When the i2600 is connected to the PC through its USB
connection it is possible to completely access and edit the Noise
Gate s parameters in order to configure it as desired. The i2600
software's noise gate function will be displayed as follows:
Threshold: This parameter allows the user to set the Threshold
of the Noise Gate. The value set here will be used by the noise
gate to indicate at which point the i2600 will start to mute the input
signal with a "closing" ramp which speed is defined by the attack
time. The available thresholds range from -80dBu up to 0dBu in
steps of 1dBu.
Attack Time: This option determines the speed at which the i2600
will mute the input signal through a "closing" ramp when the signal
drops below the set threshold. Available speeds range from 1ms
up to 1000ms.
14
The speed at which muting of
the signal occurs can make
the process more or less
perceivable to the listener.
Normally when the input signal
is already not very noisy,
allowing a very low threshold,
then the attack speed can be
pretty fast without any audible
problems. When the signal
is fairly noisy and a higher
threshold is set, then it is better
to use a slower attack time so
as to make the muting less
audible to the listeners.
Release Time: The release
time is the speed at which
the i2600 will exit the mute
status when the input signal
rises above the set threshold.
Available speeds range from
10ms up to 1000ms.
Bypass – On this screen it
is possible to turn ON or OFF
the available Noise Gate on
the Input path. Press ENTER
and an arrow (->) will appear to
the left of the screen. You can
then use the "PM2" or "PM3"
encoders to adjust the On/Off
status of the Noise Gate.
AGC Parameters through PC Software
Source
When the i2600 is connected to the PC through its USB connection,
it is possible to completely access and edit the Automatic Gain
Control's parameters in order to configure it as desired. Before
continuing to discuss how to edit and set the AGC parameters, it
may be an idea to quickly illustrate just how an AGC (Automatic
Gain Controller) works.
An AGC is essentially an Expansion/Compression process applied
with relatively slow attack and release times. This essentially
NGate
maintains the average amplitude of the OUTPUT signal at a
defined level, independent of the average amplitude of the input
sources.
For this purpose, the AGC has to be able to expand the input
signal, where the average of the related output signal is below a
defined Threshold (Exp Thr), and to maintain the expanded signal
at a constant expansion level when the averaged signal is beyond
a defined Threshold (Hold Thr).
Input -A&B
AGC Bypass = On
AGC
i2600