Harmonizers are a type of pitch shifter that can merge the shifted pitch with the original pitch. By doing this, the player is able to create a two or more note harmonies. When used for digital recording, you achieve pitch shifting through digital signal processing. The first digital processors could pitch only in post-production, but…
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An octaver audio effect is a simple form of a harmonizer that creates harmonies from more than two notes. It operates by shifting the original version either one octave up or one octave down. In other words, this effect mixes the input signal with a synthesized one. The synthesized octave signal comes from either by…
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Arpeggiators are extremely simple real-time sequencers that require a chord as an input. They are a type of broken chord in which the notes that compose it are played or sung in an ascending or descending order. An arpeggiator does not play or sing its notes at the same time. Yet, listeners are able to…
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Optical compressors, also known as opto-compressors, are a dynamic range attenuator that have a transducer. A light source in a photosensitive cell controls the gain reduction in an Opto-compressor, as it transforms energy from one form to another. These optical compressors serve to process and audio signal. In simple terms, they work by transforming the…
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Tube compressors are compressors that rely on tubes to tame the dynamic range of your audio signal. But before delving into an explanation, we must first understand the involvement of tubes themselves. The Tubes in Tube Compressors The main job of tubes in audio equipment is to amplify electricity. The first vacuum tubes were used…
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Voltage-controlled amplifiers, also known as VCA compressors, have the fastest response of the attack and release parameters. VCAs usually have less coloration than optical or tube compressors. In addition, they are fairly similar to digital tape in terms of recording. This type of compressors are cheaper than tube or optical compressors. Voltage-controlled amps provide the…
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Field effect transistors, also known as FET, are a type of dynamic audio effect. FET compressors are devices from the family of dynamic audio effects. Their design maintains more transients, which adds an extra punch in contrast to the variable. These extra punches are known as mu and VCA compressors. Generally, the slowest attack time…
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A limiter is an audio effect that allows the signals below an established level or input power to remain untouched. It does so while weakening the peaks of the stronger audio signals. A Very Brief History To begin with, limiters date back to many decades ago, when the first audio processing tool appeared. This audio…
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A noise gate is an audio effect. Some consider it an expander for its slope of -∞. This feature can mute the signal that falls below the selected threshold. This noise effect gates out the noise by setting the threshold just above the level of the background noise. As a result, the gate opens only…
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A transient shaper, also known as a transient designer or modulator, is a type of audio processor that is very similar to a compressor. In short, it is a level-independent dynamic processor. To understand this, one must learn about transients. A transient is a high amplitude and short-duration sound placed at the beginning of a…
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