An equalizer filters an audio signal to boost or cut specific frequency ranges, such as bass, midrange, or treble. Hardware versions use banks of band-pass filters controlled by sliders or knobs to shape the frequency response. Engineers rely on them to correct room acoustics, suppress feedback, or creatively alter the tonal balance of a mix.
Heard on the job
Bump up the 1k band on the equalizer so the vocals cut through the mix better.
Also heard as
- EQ
Related terms
Band-pass
Describing a circuit or filter that allows a specific range of frequencies to pass while blocking those outside the range.
Amplifier
A circuit or standalone device that increases the power, voltage, or current of an electrical signal.
Signal processing
The mathematical manipulation of physical data streams to filter, compress, or extract information.