Direct and band splitting modes, Basic loudness enhancement procedure, 2 direct and band splitting modes – Sonnox Oxford Inflator User Manual

Page 5: 3 basic loudness enhancement procedure

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2.2 Direct and Band Splitting Modes

2 OPERATION

pushing for absolute maximum loudness, regardless of possible output clipping etc.

When using direct mode (without band splitting) for distortion generation, the results will

be quite different with or without input clipping, and may produce useful artistic effects in
either circumstance. The Inflator is able to soften clips that occur, either because of the
CLIP 0dBr setting, or even those that happen before its own processing in prior plug-ins.

Therefore overdriving the Inflator with the

CLIP 0dBr function both on and off, or even

applying the Inflator to the output of other plug-ins driven into overdrive, can produce a

vast range of artistic effects. To explore the full range of possibilities, the importance of

experimentation cannot be overstressed.

2.2 Direct and Band Splitting Modes

The Inflator application can run in either direct or band splitting modes. In normal

operation, the complete frequency range of the programme material is processed
simultaneously. This is usually the best way to run the process under most conditions.
One significant advantage of using this mode is that the output relative peak level will not
get larger than peak level, however much Effect is applied. Therefore more overall
enhancement is possible before clipping the output, and louder more powerful results are
possible. Also, when used for distortion generation, the relative phase of the distortion
harmonics are better preserved when band splitting is not used, so accurate clip rounding
is possible, thus producing a much more pleasing effect.

The

BAND SPLIT function is offered as an additional mode

that may be useful under some specific conditions. When band
splitting is selected, the processing is split into three frequency
bands to avoid intermodulation distortion between parts
of the programme signal spectrum. This mode is occasionally
advantageous when going for maximum loudness enhancement

where there is a significant predominance of specific frequency

ranges in the programme content. However it should be noted
that, depending on programme and settings, operation in this
mode produces output levels that are beyond the relative input peak level. This means
that the signal is more likely to clip at the output, which may produce an increased
harshness to the sound. If this becomes obtrusive, reducing the input or output levels to
avoid clipping will obviously somewhat negate the purpose of the exercise!

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