Dynacord DSP 600, Owner'S Manual

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D
YNACORD
22
Sound travels at different speeds depending on the density of the surrounding air it is traveling through. Cold air is dens-
er than warm air thus, travels slower than it would if the air was warmer. Temperature can have a major influence with
greater distances, particularly with respect to widely separated speaker arrays surrounding the audience for example.
Temperatures might vary wildly between an indoor environment and an outdoor evening environment for example.
V = 331m/s + (0.6m/s/C) * T
The speed of sound at room temperature is 346 meters per second. At freezing temperatures sound travels at 331 me-
ters per second. V is the speed of sound and T is the temperature of the air. This formula finds the average speed of
sound for any given temperature (celcius). The speed of sound is also affected by other factors such as humidity and
air pressure.
M
ETERING
Users can set their VU metering preferences here.
Use the < SELECT > buttons to navigate to the VU Mode parameter. Use the VALUE up/down buttons to choose between
Normal Fast, Peak Hold and Slow Decay. Use the < SELECT > buttons to navigate to the VU Reference parameter. Use
the VALUE up/down buttons to choose between D/A Clip and Limiter Threshold.
4.2 Lock - Front Panel Access
A lockout mode has been provided for the installer to protect the system settings from being modified by a user. This
can be set from the front panel or from the GUI software. Following table shows the different protection levels of the
DSP 600.
F
ROM THE FRONT PANEL
Press the Setup button and use the <SELECT> buttons to navigate to the Lock menu.
Locking the DSP 600
Use the < SELECT > buttons to navigate to the Mode parameter. Use the VALUE up/down buttons to choose the required
protection mode. Use the < SELECT > buttons to navigate to the Code parameter. Use the VALUE up/down buttons to
choose your four digit code. Press the Store button to lock the DSP 600.
Unlocking the DSP 600
When the DSP 600 is locked the Mode parameter indicates the currently used protection mode. Use the < SELECT >
buttons to navigate to the Code parameter. Use the VALUE up/down buttons to enter the four digit code. Press the Store
button to unlock the DSP 600.
Mode Description
GUI-Settable One or more parameters of the DSP 600 are locked via IRIS-Net and are not visible and/or editable via the front panel.
Panel and USB Locked The buttons on the DSP 600 front panel are locked. The device can be configured via IRIS-Net only. Connecting the DSP 600 to the PC
is possible via Ethernet only, the USB port is locked.
Panel Locked The buttons on the DSP 600 front panel are locked. The device can be configured via IRIS-Net only. Connecting the DSP 600 to the PC
is possible via Ethernet or USB.
Unlocked All parameters can be configured via the DSP 600 front panel or IRIS-Net.
Table 4-2: Protection modes
Setup: METERING
VU Mode: Peak hold
VU Reference: D/A Clip
Setup: LOCK
Mode: Unlocked
Code: 0000 Press ‘Store’ to Lock