Behringer ULTRA-CURVE PRO DSP8024, Руководство пользователя

Страница: 27 / 56

27
E
After reaching the desired frequency settings on the equalizer, walk around the room and pay particular
attention to any change in the sound as you move around. Don't forget to periodically listen to your reference
music and spoken material to help “refresh” your ears and particularly to get a more objective feeling for the
characteristics and sound of your system and the room.
You must be prepared to invest plenty of time and patience to obtain an effective equalizer setting! Beware of
using extreme settings to achieve the sound you are looking for. They are inevitably a warning that something
is wrong with your system.
An equalizer cannot compensate for a bad sound system, however it is a flexible and very useful tool for fine
tuning sound. With practice you will see that subtle changes brought about with the equalizer can greatly
enhance the ability of your system to deliver a clear, well defined sound, measurably improving its overall
quality.
3.2 Using the ULTRA-CURVE PRO for monitor EQ purposes
In using the ULTRA-CURVE PRO in a monitor signal path, you should apply the ground rules discussed in the
last section for P.A. use. In addition, the ULTRA-CURVE PRO has a number of features designed specifically
to assist in monitor equalizing.
The FEEDBACK DESTROYER enables you, during sound check, to locate and control any frequencies caus-
ing feedback problems. (In this case, having detected a problem frequency, you match the filter to the fre-
quency by switching to either SGL (Single Shot) or OFF (static) in the FB-D menu).
In the case of microphones which are constantly moving (typically hand held vocal microphones) the feedback
conditions are continuously changing. Use the FEEDBACK DESTROYER filter in searching mode („S“) to
compensate for this.
The FEEDBACK DESTROYER is only suitable for use with signals with a large, changing dynamic (speech,
singing, percussion). Long, static signals such as synthesizer or flute, whose sound characteristics have
similarities to sine waves, cannot be distinguished from feedback, resulting in their signal being constantly
dampened.
If, in „SEARCH“ mode, all the available filters are being used, in the case of a new frequency being found, the
“oldest” filter in use will be released from its set frequency and made available for the new one.
The FEEDBACK DESTROYER cannot work miracles! It is capable of raising the feedback threshold by several
dBs. Seeing the FEEDBACK DESTROYER switching on should be interpreted as a warning signal. Lower the
overall volume on stage.
+
The FEEDBACK DESTROYER remains active in all (graphic) EQ-menus. In the setup menus as
well as the level meter menu the parameters of all filters are fixed. The FEEDBACK DESTROYER
pauses activity in these menus.
In principle the stage volume really should be kept as low as possible, because:
1.) It is better for everybody's hearing!
2.) It results in fewer feedback problems.
3.) It is easier to get a good FOH sound.
The monitor level tends to rise during the course of a concert. Therefore you should use any pause in the
concert to reduce all monitor levels by about 3 dB. This reduction will, if at all, be barely noticeable to the
musicians - their hearing will recover sensitivity during a pause - the end result is that you recover valuable
headroom.
If you are repeatedly using the same monitor loudspeakers, you can save the EQ settings which you have set
for these speakers (store them under names such as WEDGE 15" or DRUMFILL). Extremely low frequencies
should be filtered out to avoid a “muddy” stage sound.
+
Set the shelving tool to give you a high pass filter. (Set the shelving slope in EQ SETUP to
12 - 18 dB/oct.) By using the horizontal cursor keys you can easily change the cut-off frequency
for the high pass filter, to enable you to rapidly tailor the monitor sound to suit the program
being reproduced.
If you have a large system with a separate monitor mix and more than 4 independent monitor submixes, we
recommend the use of one ULTRA-CURVE PRO solely as an analyzer. The next figure gives an example for
3. APPLICATIONS
All manuals and user guides at all-guides.com