Drawmer THREE-SUM Manuale dell'operatore - Pagina 9

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setting a crossover point in the middle of the vocal range

can completely mess up the vocal sound. In general it's

best to set the low crossover point below the vocal

frequency range (about 150Hz to 250Hz) and set the high

crossover point between 5kHz and 8kHz (but no lower

3kHz) to catch the brightness of an acoustic guitar or

cymbals etc, and embellish the feeling of detail and air,

creating an effect similar to that of using an enhancer.

Using Multi-Band Compression on Single Instruments.

The Drawmer Three-Sum can be used to very good effect

during the recording stages. Because the signal is split

into three each band can be compressed and modified

much more precisely to add bass, or enhanced top end

brightness of a single instrument, such as a piano or drum

kit. Obviously, all instruments are different and require

different settings. As before a good starting point is to

mute the unwanted bands and to tune into the required

frequencies using the "Low Split Frequency" and "High

Split Frequency" controls. This ensures that the overall

sonal quality of the instrument is compressed, but the

unwanted noises, such as rumble from traffic, or amplifier

hiss etc. are not. On vocals multi-band compressors can

be used to alter the timbre. Compressing the lower band

will provide a much thicker voice giving it presence, whilst

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In all cases listen to the audio and try to determine where

the signal is lacking, the different ranges covered by the

various instruments and sounds and adjust the crossover

points accordingly. However, try to be subtle, remember

that the more make-up gain you apply, the more you will

be bringing up the background noise — tape hiss etc.

Careful selection of crossover points and ratio/threshold

settings can help to subdue any adverse effects, but

remember, over processing is always damaging to a piece

of music.

compressing the top band will improve air and give a more

sweet sound to what was a quite dull voice. Remember,

any gain should be controlled by the three individual

compresses before being summed by the Three-Sum.

Subtlety is the key.

Other Uses.

The Drawmer Three-Sum has primarily been designed for

use as a three band compressor, however, the fact that it

uses external compressors after splitting the signal into

its three bands opens up endless other uses. The signal

need not pass to a compressor, try using it to add distortion

or reverb to only the bass of a guitar or other instrument.

Imagine having a lead guitar with over driven bottom strings,

but a clear crisp tone to the top strings.

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