Ableton Live Intro Manual de Instruções descarregar pdf (Página 255)

CHAPTER 20. LIVE AUDIO EFFECT REFERENCE 253

cise, and so works well for limiting tasks where you need to ensure that there are absolutely

no signals over the set threshold. RMS is closer to how people actually perceive loudness

and is usually considered more musical. Opto mode, because of its non-linear release

time is often considered smooth and natural sounding. Opto compressors are commonly

used on vocals, bass and electric guitar. But as always, when it comes to compression, trust

your ears and not the meters!

In addition to the EF modes, Compressor offers three Model types that offer further options

for how the device measures and responds to signal levels. FF1 and FF2 are both feed-

forward models, which analyze the loudness of the incoming signal. These are the models

used in the former Compressor I and Compressor II devices, respectively. FB is a feedback

model, which analyzes the output of the device and then self-adjusts its compression be-

havior. Because feedback compressors analyze signals that have already been compressed,

their Attack and Release parameters are a bit less precise, and act more like suggestions to

the compressor. But feedback compression generally results in a much smoother sound,

with less overall gain reduction but also less potential for distortion artifacts. The classic

analog compressor models that are so highly sought after in hardware-based studios are

generally all feedback models. Note that, for reasons of quantum physics, Lookahead and

external sidechaining are disabled when using the FB model; Ableton's engineers are hard

at work developing code that will allow our software to predict the future, but we don't

anticipate having this available until at least the next major release.

20.5.1 Sidechain Parameters

The Compressor Device

With Sidechain Section.

Normally, the signal being compressed and the input source that triggers the compressor

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Vikinin 04 Jan 2024 | 12:03:19

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Ableton Live Intro Manual de Instruções Página 255