ULTRACURVE PRO DEQ2496

3. MENU STRUCTURE AND EDITING

This chapter provides you with detailed information on how too use the various functions on each menu page. We recommend that you keep this user’s manual available while working with the DEQ2496, so as to use it as a reference in case of any problems.

3.1 General operation and display structures

When you select a menu with the GEQ, PEQ, DYN, etc. keys, the display indicates the respective menu structure. To the left and right along the display you will find functions and parameters for preset editing, which are assigned to the A and B keys (left) and the three data wheels (right) and can be used for editing as required.

Most of the menus comprise several pages. The actual number of pages is shown in the top left part of the display, below the menu name. Use the corresponding menu key or the PAGE key to the left of the display to switch from one page to the next and back again.

As the functions performed by the A and B keys and the data wheels depend on the currently selected menu, all operating steps are described in full detail below. All menus are dealt with one after the other, and all functions and parameters are explained explicitly.

+Please note that the left and right channels will be edited simultaneously in STEREO LINK mode.

3.2Equalizer modules

3.2.1 GEQ menu

Press the GEQ key to enter the GEQ menu. This menu has just one page and allows you to set all filters as desired.

Fig. 3.1: GEQ menu

Turn the upper data wheel to select a frequency band for editing with the FREQ parameter. 31 bands are available comprising the entire frequency spectrum from 20 Hz to 20 kHz. With the large data wheel (GAIN) you can boost or cut the level of the selected band. The setting range is from -15 to +15 dB.

VPQ (Virtual Paragraphic Equalizer) function

The lower data wheel (BW/OCT) additionally assigns the required bandwidth to the filters. This means that the frequency bands have a peaking boost/cut characteristic around their center frequency. The number of adjacent frequency ranges influenced by this is determined by the bandwidth. The setting range is from 1/3 too 59/3.

As soon as this parameter has been modified, the RESET GEQ message (left bottom part of display) changes to ACCEPT VALUES. Now, when you press the B key (or the large data wheel), the current value is stored and you can continue to enter the filter settings as required.

When you press the lower data wheel, the BW/OCT parameter changes to MODE. Turn the wheel to select a HIGH or LOW shelving filter. In this case, the GAIN parameter changes to dB/OCT. Use the large data wheel to adjust the filter slope from -15 to +15 dB/oct. In HIGH mode, all frequency bands above the selected frequency are now raised or lowered in level. In LOW mode, all frequency bands below that frequency are modified. Confirm your entries with the B key (ACCEPT VALUES).

The A key to the left of the display can be used in DUAL MONO mode to alternate between the left and right-channel audio signal. Keep the key pressed for some time to display the settings of both sides and edit them simultaneously. In STEREO LINK mode both channels are always processed simultaneously.

The B key allows you to reset the filter settings (RESET EQ). Hit it briefly to reset the currently selected frequency band to

0.0dB gain. Press it for about 1 s to reset all frequency bands. Single frequency bands can be reset by pressing the large data wheel.

3.2.2 PEQ menu

Press the PEQ key to use parametric EQs for signal processing. On each stereo side, you have ten EQs available, which can be set to PEQ or FBD mode (Feedback Destroyer: see chapter 3.2.4). In addition to the band-pass filters, this menu offers filters of the shelving type (high or low), with a slope of 6 or 12 dB/oct.

Fig. 3.2: PEQ menu (page 1)

This menu comprises two pages, as can be seen in the top left part of the display. Similar to the GEQ menu, page 1 of the PEQ menu provides a graphic representation of the entire frequency range. Parameter changes can be effected with the corresponding controls (FREQ: upper data wheel, GAIN: large data wheel, BW/OCT: lower data wheel).

To reset the selected PEQ, keep the B key to the left of the display pressed for about 1 s. Or hit it briefly to select the parametric filters.

Fig. 3.3: PEQ menu (page 2)

Press the PAGE or PEQ key to select the second menu page. If no parametric EQ was selected before, page 2 will be displayed immediately, providing a list of the ten available locations with all relevant parameters. Single filters can be selected either by turning the lower data wheel or by pressing the lower and upper data wheels (UP/DOWN). MODE allows you to activate the selected filter with the large data wheel (press or turn) (PARAM). This will display the associated parameters FREQ, BW(OCT) and GAIN, which can be selected by turning the upper data wheel. Value changes must be entered with the large data wheel. The GAIN setting range is from -15 to +15 dB, the frequency range (FREQ) is from 20 to 20,000 Hz. The FREQ parameter can be adjusted with two scales. The first scrolls faster through the frequency ranges (1/6 oct. per step), the second uses much finer increments (1/60 oct. per step). Press the large data wheel to alternate between these two scales.

The parameter BW(OCT) adjusts the bandwidth of the bandpass filter. The “width” of the peaking characteristic (1/10 oct. to

10oct.) is determined by this value. Additionally, you can select shelving filters here with a slope of 6 or 12 dB/oct. (e.g. L=Low, 6 dB / H=High, 12 dB, etc.)

Explanation:

The low-shelvingfilter raises (positive gain) or lowers (negative gain) the level of the frequency band below the adjusted frequency.

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3. MENU STRUCTURE AND EDITING