Behringer DSP8024 user manual Control elements

ULTRA-CURVE PRO DSP8024

The automatic servo function recognizes the presence of unbalanced connectors and adjusts the nominal level internally to avoid level differences between the input and output signals (6 dB correction).

The optional digital input and output (AES/EBU interface) connections are balanced with a negative ground. High-quality connectors ensure isolated, noise-free signal throughput. The MIDI connections (IN/OUT/THRU) have been realized with standardized DIN plug-in connectors. Optocouplers have been used for isolated data communications.

1.3 Control elements

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Fig. 1.1: The control surface of the ULTRA-CURVE PRO

The heart of the front panel is the LED backlighted 240 x 64 active DISPLAY. The control of the ULTRA-CURVE PRO in centered around the central display. The user interface is for a large part graphical, complemented by four text based setup menus. The function of the softkeys is displayed right next to these keys, their function changes to accommodate different features.

To the right of the display you will find the MIDI LED which registers incoming MIDI messages.

The EQ key switches the ULTRA-CURVE PRO into equalizer mode. In this mode, the EQ, FEEDBACK DESTROYER, LIMITER and DELAY functions may be used.

The RTA key switches the ULTRA-CURVE PRO into analyzer mode. This mode is solely concerned with measuring and signal generation, the sound will not be affected!

IN/OUT key. The ULTRA-CURVE PRO can be switched into the signal path (LED is green) or switched out (bypass, LED dark). The LED flickering red indicates DSP overflow. This does not necessarily mean “clipping”. Flickering starts as soon as an internal overflow in one of the filters occurs, while input and output levels may be o.k. When this LED lights up often, reduce the input level or the ULTRA-CURVE PRO’s gain level.

The SETUP key allows entry into the setup menus where all the basic adjustments of the device are to be found, such as the choice of input source, sample rate, password protection, MIDI configuration etc. Pressing once will open either the EQ setup or RTA setup, depending on the function of the unit. Holding the key down for two seconds or more will open the general setup windows consisting of a global setup and a MIDI setup window. Pressing the setup key here will toggle between both general setup windows.

To the left of the display four SOFTKEYS, labelled A, B, C and D respectively, are to be found arranged vertically. Their functions can be defined by the user software and displayed to the immediate right of each key by the appropriate pictogram in the display. Each pictogram and its associated functions will be comprehensively explained in chapter 2. You will find function diagrams for both EQ and RTA mode as well as a list of all pictograms used on an extra sheet.

To the right of the display the CURSOR KEYS are to be found. These are used:

1.to select individual filter frequencies, and the master fader in equalizer mode (horizontal)

2.to adjust the value of each selected frequency (vertical)

3.to position the measurement cursor in analyzer mode (horizontal)

4.in both operating modes, to choose the program position (vertical)

5.to select a field in the SETUP menu (horizontal and vertical)

1. INTRODUCTION 7