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AMP 4 > Dynamic Processing > Flashcards

Dynamic Processing Flashcards

1
Q

What is dynamic processing used in?

A
  1. Used to control dyanmic ranges of an audio signal
  2. Used to regulate volume of audio passages
  3. Ensures consistent loudness and clarity by taming peaks and boosting quieter parts.
  4. Creates a sense of choesion among tracks in mixes.
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2
Q

What is threshold?

A

A threshold is the level an audio signal must exceed for a processor, like a compressor, to take effect.

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3
Q

What is ratio?

A

Ratio defines how much the signal is reduced once it exceeds the threshold. For example, a 4:1 ratio means that for every 4 dB the signal goes over the threshold, the output will only increase by 1 dB.

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4
Q

What is makeup gain?

A

Gain reduction compensation

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5
Q

What is lookahead?

A

Lookahead is a feature in dynamic processors that allows them to anticipate incoming signals. It delays processing slightly to react more effectively, preventing distortion by adjusting before the signal exceeds the threshold.

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6
Q

What is knee?

A

How smooth or abrupt the compressor’s attack is.

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7
Q

What is an envelope?

A

The life span of a sound consisting of attack, decay, sustain, and release.

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8
Q

What is attack?

A

How quickly a sound can reach its peak after being triggered. It is also the time it takes for a dynamic processor to start reducing the signal after it exceeds the threshold.

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9
Q

What is decay?

A

Decay is the time it takes for a dynamic processor to stop reducing the signal after it falls below the threshold, trasitioning to the sustain level.

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10
Q

What is sustain?

A

Sustain is the level at which the signal is held after the initial attack and decay phases. It determines how long the processed signal maintains its reduced level before fading out.

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11
Q

What is release?

A

Release is the time it takes for a dynamic processor to return the signal to its original level after it falls below the threshold.

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12
Q

What are characteristics of a VCA (Voltage Circut Amplifier) compressor?

A
  • Voltage Circut Amplifiter is at the heart of the unit
  • Transparent compression: it does not alter tone
  • Fast response (attack & release) and accurate gain reduction
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13
Q

What are characteristics of a FET compressor?

A
  • Field-effect transistors are central to the unit.
  • Fast and punchy, great for percussion.
  • Adds warm coloration and harmonic richness.
  • Usable on any sound.
  • Usually has attack, release, and ratio settings.
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14
Q

What are characteristics of an OPTO compressor?

A
  • Optical circuit uses an LED and LDR (Light-Dependent Resistor) for gain control.
  • Provides smooth, musical compression without distortion.
  • Slow response time for a natural, transparent sound.
  • Gain reduction varies based on input signal.
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15
Q

What are characteristics of a VARIMU compressor?

A
  • Uses variable-mu (gain control element) vacuum tube for compression control.
  • Tube circuitry adds warmth to the tone.
  • Response time is adjustable.
  • Has soft-knee compression.
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16
Q

What are characteristics of a DIGITAL compressor?

A
  • Relies on digital signal processing (DSP) algorithms.
  • Offers precise control for detailed compression shaping.
  • Versatile with many options.
  • Provides a transparent sound with no unwanted artifacts.
17
Q

What are characteristics of a MULTIBAND compressor?

A

Digital compressors split the audio signal into multiple bands and compress each band separately.

18
Q

What do expanders do?

A

An expander raises the volume of audio signals below a certain level, making quiet sounds louder and increasing dynamic range. This reduces noise and enhances softer parts of the sound.

19
Q

What does a gate do?

A

it mutes audio signals below the threshold. It is an expander with infinite ratio.

20
Q

What does a limiter do?

A

A limiter prevents audio signals from exceeding a set level, reducing the volume of sounds that go over it. This helps avoid distortion and keeps the sound clean and controlled.

Some limiters have attack/releas parameters. They are used to safely cut off varying peaks and ensure consitency.

21
Q

What is a de-esser?

A

De-essers are tools that reduce harsh “s” sounds in audio. They detect and lower the volume of these high-frequency sounds without affecting the rest of the audio.

22
Q

What does a dynamic resonance suppressor do?

A

A dynamic resonance suppressor lowers unwanted loud frequencies in audio, making the sound smoother and more balanced. Resonance may be due to room accoustics, microphone placement, instrument characteristics, or recording technique.

23
Q

What are transient shapers?

A

Transient shapers adjust the attack and sustain of sounds. They can make a sound punchier or softer, helping to shape the character of instruments in a mix.

24
Q

If I wanted a compressor that DOESN’T alter tone, which one would I pick?

A

VCA Compressor

25
Q

If I wanted a compressor that is useful for percussive elements, which one would I pick?

A

FET compressor

26
Q

If I wanted a compressor that sounds more natural or transparent, which one would I pick?

A

OPTO compressor

27
Q

If I wanted a compressor with a soft knee compression, which one would I pick?

A

Varimu compressor

28
Q

If I wanted a compressor that has precise control over parameters and allows for detailed shaping, which one would I pick?

A

Digital compressor

29
Q

If I wanted a compressor that has a fast response which one would I pick?

A

VCA compressor

30
Q

If I wanted a compressor that has a distinctive warmth and harmonic richness or saturation, which one would I pick?

A

FET compressor

31
Q

If I wanted a compressor that has smooth and musical compression and avoids distortion, which one would I pick?

A

OPTO compressor

32
Q

If I wanted a compressor where the response time can be varies, which one would I pick?

A

Varimu compressor

33
Q

If I wanted a compressor that has no artifacts/unwated analog inconsistencies, which one would I pick?

A

Digital compressors

34
Q

If I wanted a compressor that is veratile due to abundance of options, which one would I pick?

A

Digital compressor

AMP 4 (2 decks)

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