What Denoising Is

Denoising, also known as noise extraction, is a process to filter and remove noise from a sound.

Sounds are made of different components that affect how these sounds are perceived:

• Noise is the broadband stationary component of the sound.

  Examples: background noise, rolling noise, wind, white noise.

• Tonal are the sinusoidal components of the sound.

  Examples: harmonic or pseudo-harmonic components of a sound, isolated tone.

• Transient are the short and time localized components.

  Examples: shocks, clicks, note attacks.

• Remaining component is composed of the components which do not fit any of the three previous categories.