Behringer DSP8024 user manual RTA setup

ULTRA-CURVE PRO DSP8024

increasing the decay results in a slower display.

+Short decays are necessary to display fast processes, whereas using long decays with static signals will result in a “quieter” display, which is usually desirable for this type of signal.

2.2.5 RTA setup

The RTA SETUP menu is opened by pressing the SETUP key. The RTA SETUP window appears in the display and the LED above the SETUP key flashes.

Fig. 2.9: RTA SETUP window

You can use the cursor key to choose the parameters or values you wish to edit. The currently selected field is highlighted by inverting. You can change parameters or values with the softkeys marked / and / respectively.

SOURCE

This field is used, as is the case in the RTA menu to select the signal source for the analyzer. The display here reads as follows: mono, left, right and micro, each referring to the sources available.

PEAK HOLD

ON = peak level indicator ON, OFF = peak level indicator OFF.

RESOLUTION

You can use this field to set the resolution of the graphic display, choosing between 0.5 dB per pixel, or 1 dB per pixel. (A pixel is the smallest single point the display screen can generate). When measuring a steady signal e. g. when using pink noise to adjust a loudspeaker system, the use of the finer resolution is recommended.

ANALYZER

Used to switch the measurement filter between peak and RMS characteristics.

DECAY

Setting the decay: 15, 65, 250 or 1000 milliseconds per 20 dB.

AUTO-Q CURVE

You can use one of the 100 stored equalizer settings as a target curve for the auto-q function. If no program number has been given, “FLAT” will be displayed, meaning that an attempt will be made to achieve a linear response.

GAIN MODE

The ULTRA-CURVE PRO analyzer is capable of setting itself dynamically to suit the input signal level. This frees you from adjusting the input level manually. In this AUTO mode, the gain levels selected by the ULTRA-CURVE PRO will be shown in the respective LINE GAIN and MIC GAIN fields. The automatic adjustment can be switched off (MANUAL).

LINE GAIN

When operating in manual mode, the input amplification for the internal signal is displayed in this field. It can be adjusted, in 4 dB steps, from 0 to 60 dB. (This feature is solely used in RTA mode).

MIC GAIN

As above, for the reference microphone Input. Gain can be adjusted from 20 to 80 dB.

MIC CORR

You can use one of the stored EQ curves as a corrective curve for the analyzer measurement, to compensate for any frequency response variations caused by the reference microphone. In the field the chosen program position, and the chosen side (L/R) are displayed. NONE = no corrective curve.

There are three fields in which you can choose which type of output signal from the ULTRA-CURVE PRO digital generator you wish to use to make a measurement.

RTA OUTPUT

You can choose the type of output signal you need in this field: PINK = pink noise, WHITE = white noise, SINE

16 2. OPERATION