11
ULTRA-GRAPH PRO GEQ3102
2.3 Using the ULTRA-GRAPH PRO in the studio
In the studio you can use your ULTRA-GRAPH PRO in a variety of further applications. Your imagination is the
only limit. Here are just a few examples:
Equalizing monitoring speakers:
You can graphically equalize your monitoring speakers. Additionally, narrow-band room resonance frequencies
can be suppressed with the ULTRA-GRAPH PRO. An analyzer (for example, the one integrated in our digital
Equalizer ULTRA-CURVE PRO DSP8024) helps you identify room resonance and produce a linear frequency
response.
General sound processing:
Equalizers can be used to process both single-channel and master signals. To process a single signal, you
should use the channel insert point on your console to connect the ULTRA-GRAPH PRO. To control several
signals, use either a Su/jointfilesconvert/401166/bgroup or Main Mix insert point. In particular, mastering studios frequently work with
Equalizers to refine the sound of a finished mix. Often, the mix lacks balance, i.e. some frequencies are too
loud or cannot be heard at all. With a Graphic Equalizer you can align the differing amplitudes of frequency
ranges to create a homogenous sound image.
Chapter 3 (THE SOUND TOOL) provides useful information on how to process typical frequency ranges of
voices and instruments.
3. THE SOUND TOOL
In recording studios as well as stage or radio plays, the ULTRA-GRAPH PRO will be your valuable sound tool
to modify the sound of voices (e.g. telephone voice) or to filter instruments so that they fit in an existing mix.
The tables on the following pages give you an idea of specific frequencies and their acoustic significance,
and suggest some possible uses of your ULTRA-GRAPH PRO.
3.1 Effects of equalization on voice program
Center frequency (Hz)
1/3 octave
Effect on voice
40 to 125 Sense of power in some outstanding bass singers.
160 to 250 Voice fundamentals.
315 to 500 Important for voice quality.
630 to 1k
Important for voice naturalness. Too much boost in the 315 to 1 kHz
range produces a telephone-like quality.
1.25k to 4k
Voice fricatives-accentuation of vocals. Important for speech
intelligibility. Too much boost between 2 and 4 kHz can mask certain
speech sounds e.g. "m", "b", and "v" can become indistinguishable.
Too much boost anywhere between 1 and 4 kHz can produce
"listening fatigue". Vocals can be highlighted by slightly boosting the
vocal at 3 kHz and at the same time slightly dipping the instruments
at the same frequency.
5k to 8k
Accentuation of voice. The range from 1.25 to 8 kHz governs the
clarity of voice.
10k to 16k Too much boost causes sibilance.
Tab. 3.1: Effects of equalization on voice reproduction
3. THE SOUND TOOL
(14 pages)
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