Audio Glossary
Mixing.
44 terms
Automation
The recording of parameter changes over time within a DAW — volume, panning, plugin settings — that play back exactly…
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Aux (Auxiliary Channel)
A secondary signal path used to route audio to a shared destination — typically a headphone mix for performers, a sen…
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Bus
A signal routing path in a mixing console or DAW that combines multiple audio channels and routes them to a common de…
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Bus Compression
The application of compression to a group of signals routed to a shared bus, rather than to individual tracks. Used t…
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Chorus
A modulation effect that creates the impression of multiple instruments or voices by layering slightly pitch-shifted …
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Convolution Reverb
A reverb processor that uses impulse responses (IRs) — recordings of real acoustic spaces or hardware reverb units — …
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Delay
An effect that records an audio signal and plays it back after a defined time interval, creating one or more discrete…
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EQ (Equalizer)
A tool for adjusting the level of specific frequency ranges within an audio signal. Used to correct tonal imbalances,…
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Exciter
A processor that generates and adds harmonic content — typically upper harmonics — to an audio signal to increase per…
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Fader Automation
Volume automation applied specifically to fader levels over time within a DAW session. Distinct from plugin parameter…
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Filter
A circuit or algorithm that removes or attenuates specific frequency ranges from an audio signal. Common types includ…
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Frequency Masking
A psychoacoustic phenomenon where one sound obscures another when they occupy the same or adjacent frequency ranges. …
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Glue Compression
Light, transparent compression applied to a group bus or mix bus to make individual elements feel cohesive and unifie…
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High-Pass Filter (HPF)
A filter that allows frequencies above a set cutoff point to pass through while attenuating frequencies below it. Use…
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Impulse Response (IR)
A recording that captures the acoustic signature of a physical space or hardware device by measuring its response to …
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Insert vs Send
Two fundamental signal routing approaches in mixing. An insert places a processor directly in the signal path — the e…
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K-System (K-Meter)
A metering system developed by mastering engineer Bob Katz that establishes a standardized monitoring reference level…
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Low-Pass Filter (LPF)
A filter that allows frequencies below a set cutoff point to pass through while attenuating frequencies above it. Use…
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Master Bus
The final summing point in a mixing session where all audio channels combine before output. Processing applied to the…
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Mid-Side (M/S)
A stereo processing technique that separates a stereo signal into its center content (mid) and stereo width content (…
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Mix Bus
The stereo summing bus within a mix session where all tracks combine before reaching the final output or master chain…
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Mono Compatibility
The quality of a stereo mix to translate accurately when collapsed to a single mono channel. Content existing only in…
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Pan Pot
Short for "panoramic potentiometer." The rotary control on a mixing console or DAW channel that positions the signal …
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Panning
The placement of an audio signal in the stereo field between left and right speakers. Used to create width, separatio…
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Panning Law
The mathematical rule that determines how a DAW adjusts the signal level when a sound is panned between left and righ…
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Phantom Center
The psychoacoustic illusion of a sound source appearing at the center of a stereo image when identical signals are re…
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Pitch Correction
The process of adjusting the pitch of a recorded performance to align with the intended musical scale. Can be applied…
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Plate Reverb
A reverb type that uses a large suspended metal plate to create reverberation. An audio transducer vibrates the plate…
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Pre-delay (Reverb)
A short delay applied before the onset of reverberation. Allows the direct signal to be heard clearly before the reve…
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Q Factor (Bandwidth)
A parameter in parametric equalizers that controls the width of the frequency band being boosted or cut. A high Q val…
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Reverb (Room)
A reverb simulation designed to replicate the acoustic characteristics of a small-to-medium room rather than a large …
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Reverberation (Reverb)
The persistence of sound in a space after the source has stopped, created by multiple reflections off surfaces. In mi…
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Saturation
A form of harmonic distortion that adds warmth, density, and character to audio signals. Originally a byproduct of an…
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Send / Return (FX Bus)
A routing configuration in which a portion of a channel's signal is sent to a shared effects processor — such as a re…
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Sibilance
Harsh, high-frequency sounds produced by consonants such as "s," "sh," "t," and "ch" in vocal recordings. Excessive s…
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Sound Design
The creative discipline of creating, manipulating, and arranging audio elements to serve a narrative, aesthetic, or f…
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Stereo Bus
The final two-channel summing point in a mix where all tracks and buses combine before reaching the monitoring system…
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Stereo Width
The perceived breadth of the stereo image in a mix. Narrow mixes sound focused and mono-compatible; wide mixes create…
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Subgroup
A routing configuration in which multiple related channels are grouped together and routed through a shared bus befor…
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Summing
The mathematical and electrical process of combining multiple audio signals into a single output. In digital audio, s…
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Tail (Reverb Tail)
The decaying portion of a reverb that follows the initial reflections. The length and character of the tail determine…
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Tape Emulation
A plugin or hardware unit that replicates the sonic characteristics of analog tape recording — saturation, harmonic d…
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Vocal Chain
The specific sequence of processors applied to a lead vocal, typically including EQ, compression, de-essing, and satu…
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Wet/Dry Ratio
The balance between the processed (wet) signal and the unprocessed original (dry) signal when using an effect. A high…
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