Echo Filter

A basic echo effect implemented using a variable delay line.

The input signal is delayed and scaled before being mixed back with the original signal, creating discrete repetitions over time.

Delay time and feedback gain control the spacing and decay of the echoes.

Vibrato Filter

A vibrato effect created through modulation of a variable delay line.

An LFO periodically shifts delay time, generating pitch variation while preserving overall signal energy.

Adjustable modulation depth and rate allow expressive timbral movement.

Flanger Filter

A short, modulated delay effect mixed with the dry signal to produce dynamic comb filtering.

Continuous delay variation generates sweeping spectral notches and phase-based motion.

Parameters allow control over modulation depth and rate.