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Processing, A detailed description, Transient detector – Metric Halo TransientControl User Manual

Page 9: Transient gain, Sustain detector, 9 transient gain, 9 sustain detector, Transientcontrol block diagram

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3. Processing

A Detailed Description

In this chapter we discuss what each processing block does and how the controls work.

Output

Gain

Sustain

Detector

Output

Input

Transient

Detector

Sustain

Gain

Transient

Gain

Figure 3.1: TransientControl Block Diagram

The block diagram above illustrates the overall structure of the processing system provided by TransientControl.
This diagram does not indicate the various metering blocks.

Now lets examine the various processing blocks indicated in the diagram.

Transient Detector

The transient detector separates the transient component of the audio from the surrounding sustain. The de-
tector envelope is tuned using the following controls, which are available in the Advanced UI view:

• Fast Attack: Sets the fast attack time of the transient detector, from 0 to 100ms.
• Slow Attack: Sets the slow attack of the transient detector, from 0 to 100ms.
• Release: Sets the release of the transient detector, from 0 to 1000ms.

The Fast Attack and Slow Attack controls define the threshold that the audio must exceed to be considered
“transient”, while the Release control sets how long the envelope stays open.

You generally will not need to change these controls from the default values.

Transient Gain

This control allows you to boost or cut the level of the audio that falls within the transient detector's envelope.
The gain range is ±300%

Sustain Detector

The sustain detector separates the sustain component of the audio from the transient “spike”. The detector
envelope is tuned using the following controls, which are available in the Advanced UI view:

• Attack: Sets the attack of the sustain detector, from 0 to 100ms.
• Fast Release: Sets the fast release of the sustain detector, from 0 to 1000ms.
• Slow Release: Sets the slow release of the sustain detector, from 0 to 1000ms.