T-44/48 Series Operation Manual
37
T-44/48 Series | rev.
firm. 1.258 and above
If LIR or FIR are in use, the Processing latency of a Drive Module may increase beyond
this figure. The Drive Module Latency may be viewed on the Latency page of the relevant Input
DSP channel. This can be accessed by pressing <
INPUT
> then <▼> down until the latency
page is reached.
When LIR, is used the Vx Limiter can take the overall latency above the 1.53ms. When
high pass frequency is set below 40Hz the filter will automatically revert to Linkwitz riley, this is
set so that the latency will not exceed 30ms as stated.
When using input FIR filters, LIR or VX Limiters always check the view latency screen to
see the latency attributed to that Drive Module.
Note that the latency reported on the Latency screen in the utilities menu does
not include the Input/Output latencies. The computed latency value is displayed
in UTILITY page.
Example:
Please note that the latencies within a Drive Module are equalised among outputs of
that Drive Module. That is, padding delay will be automatically added to some outputs such that
the total latency is the same in each output of a Drive Module. This latency equalisation does
not extend outside a Drive Module, so Drive Modules are not guaranteed to have the same
latency as one-another.
5.4 Secure Mode
When activated, this will disable all the front panel controls so they cannot affect the
signal path, making the unit secure against tampering. The only option that is left for user
control is snapshot recall. If this is not required then storing the same device state in every
snapshot will effectively disable this feature. When in secure mode, the indicators still operate
normally. To activate secure mode, press and hold the
<
UTILITY
>
button for 5 seconds. To
deactivate, press and hold the
<
UTILITY
>
button for 5 seconds.
When in secure mode, this will be shown on the display.
Note
that the communications port is still active in secure mode.
5.5 Overlay Flush
If the device has been used in Module Groups, and still has an active Overlay (as
indicated by the Overlay indicator), these can be removed by simultaneously pressing and
holding for 5 seconds the
<
UTILITY
>
and
<
ENTER
>
buttons. See
5.6
Revert to Factory Settings
If you wish to erase all of your settings in the device and revert everything to factory
settings, then simultaneously press and hold for 5 seconds the Up button and the Mute 1
button, then follow the prompts on the display. Only continue by pressing the Enter button if you
are sure this is what you want to do. Otherwise, press the Down button to escape. Alternatively,
Analogue Input
0.385 ms
Analogue Output
0.402 ms
Input HiShelft FIR (off)
0 ms
LIR Linear Phase crossover (500Hz)
2.38 ms
VxLim Limiter (VX mode on, 1KHzFsplit)
0.358
Total
3.525
