Behringer high-precision digital 24-bit/96 kHz EQ/RTA mastering processor DEQ2496 - Manual (Page 12)

12 ULTRACURVE PRO DEQ2496 User Manual
Depending on the channel selected, the large data wheel now controls the
left or right stereo side of the output signal (DELAY LEFT and DELAY RIGHT)
or even both at the same time. Press the wheel to select a coarse or fine
adjustment scale.
◊ The AUX output allows you to send out both the delayed and the
undelayed signal. This way, you can set up a delay line without any
additional equipment (see also chapter 4.4).
3.7 BYPASS menu
The BYPASS menu includes one page, on which you can select various BYPASS
parameters for making comparisons between different sound settings.
Fig. 3.24: BYPASS menu
In DUAL MONO mode you can activate the relay bypass function for the left
(upper data wheel: BYPASS LEFT) or right stereo side (lower data wheel:
BYPASS RIGHT). This connects the analog left or right input of the unit to the
corresponding analog output, so that the signals bypass the modules completely.
In STEREO LINK mode the upper and lower data wheels disable the modules
of both sides simultaneously, so that only the unprocessed input signal can be
heard (BYPASS ALL).
◊ Keeping the BYPASS key pressed in DUAL MONO or STEREO LINK mode
activates the bypass relays of both channels.
Turn the large data wheel to select individual modules, and press it to remove
them from the signal path. The same can be achieved by pressing the B key
(BYPASS MODULE). Keeping this key pressed for a while will reset all BYPASS
settings. Keeping the module keys pressed for a while (GEQ, PEQ etc.) will enable/
disable the bypass function for individual modules.
◊ Please note that the WIDTH function (stereo imager) is not available in
DUAL MONO mode, and is therefore not displayed in the BYPASS menu.
3.8 RTA menu (Real-Time Analyzer)
Your ULTRACURVE PRO DEQ2496 features an FFT real-time analyzer for the
graphic representation of all frequency ranges (61 bands). Additionally, this menu
includes an AUTO EQ function (AEQ) for automatic frequency response correction
(see chapter 3.8.1).
Fig. 3.25: RTA menu (page 1)
On the first page, the A key selects the analyzer input signal. These settings are
the same you can adjust on page 3 of the I/O menu. You can choose between
the options MAIN IN or DIG IN (L + R IN), MAIN OUT (L + R OUT), AUX. OUT/
DIG. OUT (L + R DIGOUT) and RTA IN (MIC/LINE). Use the A key for selection.
Keep the key pressed to determine which input signal is displayed by the analyzer
(left, right or complete input signal—not available if RTA IN has been selected).
RTA MIC/LINE IN displays the signal present at the RTA/MIC input
(see chapter 3.11).
The MAX. parameter (upper data wheel) allows you to select an “excerpt” of
the entire level spectrum, depending on the actual magnitude of the signal
level. The adjusted dB value (0 to -60 dB) refers to the upper limit that will be
displayed. Press the wheel to activate the AUTO function. Now the MAX value
is adjusted automatically, depending on the signal level. RANGE (lower data
wheel) determines the dynamic range displayed in four steps (15, 30, 60 or
90 dB). Depending on the selected MAX value, the dynamic range displayed will
be extended towards the bottom end.
LEVEL or PEAKH (large data wheel) allow you to select specifically each of the 61
frequency bands and display their current volume levels (LEVEL) or PEAK values
referenced to the adjusted frequency. The cursor arrows above and below the
graphic indicate the currently selected frequency range. The level of the main
signal is shown by the LEVEL meter to the left of the RTA display.
Fig. 3.26: RTA menu (page 2)
On the second page of the RTA menu you can adjust the release time in four steps
(FAST, MID, SLOW and AVRG) with the A key (RATE). If set to FAST, MID or SLOW,
the RTA uses peak detectors. If set to AVRG, it calculates average values from
the signal levels. In this mode, the analyzer seems to be processing slower than
usual. The B key (PEAK) selects in five steps how fast the displayed signal peaks
disappear again (FAST, MID, SLOW, HOLD and OFF). If set to HOLD, the maximum
values of the individual frequency bands are “frozen”. If you press the B key for
about 1 s, the “frozen” level peaks are reset and can be calculated anew.
◊ If PEAK is set to HOLD, the name of the LEVEL parameter
changes to PEAKH.
Fig. 3.27: RTA menu (page 3)
If you wish to display the RTA in a larger format, please go to page 3, where the
illustration covers the whole display. All the other functions available on page 2
can still be edited (RATE, PEAK, etc.).
3.8.1 3.8.1 AUTO EQ function (AEQ)
The RTA menu (page 1) also includes an AUTO EQ function, which allows you
to analyze and correct the frequency response automatically. This module is
subdivided into three additional pages. Please note that for the AEQ function
to work you must connect a measuring microphone to the RTA/MIC input
(see chapter 3.11).
Fig. 3.28: AEQ menu (page 1)
In terms of setup and functionality page 1 is identical to the GEQ menu
(see chapter 3.2.1). You can determine the desired frequency response manually,
onto which the automatic frequency response correction of the input/output
signals shall be based. Once the curve of your choice has been set up,
please switch to the second page of the AEQ menu.