Equalization (audio)
Videos
Equalization, or simply EQ, in sound recording and reproduction is the process of adjusting the volume of different frequency bands within an audio signal. The circuit or equipment used to achieve this is called an equalizer.
A stereo graphic equalizer. For the left and right bands of the sound content, there are a series of vertical faders, which can be used to boost or cut specific frequency ranges. This equalizer is set to a smiley face curve, in which the mid-range sound frequencies are cut.
Equalizers are also made in compact pedal-style effect units for use by electric guitarists. This pedal is a parametric equalizer.
UREI graphic and parametric EQs; the device on top is a Power conditioner.
The equalizer-section from the Audient ASP8024 Mixing console. The upper section has high and low shelving EQ, the lower section has fully parametric EQ.
Timbre
Videos
In music, timbre, also known as tone color or tone quality, is the perceived sound quality of a musical note, sound or tone. Timbre distinguishes different types of sound production, such as choir voices and musical instruments. It also enables listeners to distinguish different instruments in the same category.
Spectrogram of the first second of an E9 suspended chord played on a Fender Stratocaster guitar. Below is the E9 suspended chord audio: