Apply audio soft clipping.

Soft clipping is a type of distortion effect where the amplitude of a signal is saturated along a smooth curve, rather than the abrupt shape of hard-clipping.

This filter accepts the following options:

type

Set type of soft-clipping.

It accepts the following values:

• hard
• tanh
• atan
• cubic
• exp
• alg
• quintic
• sin
• erf

threshold

Set threshold from where to start clipping. Default value is 0dB or 1.

output

Set gain applied to output. Default value is 0dB or 1.

param

Set additional parameter which controls sigmoid function.

oversample

Set oversampling factor.