Envelope Follower

The Envelope Follower extracts the amplitude envelope from audio signals, converting them to control voltages suitable for modulating other parameters. Based on Kevin Ferguson’s algorithm, it provides smooth, responsive envelope detection that stays in the audio domain for CV-like control.

Overview

The Envelope Follower enables:

• Real-time envelope extraction from audio
• CV-style control signal generation
• Audio-reactive parameter modulation
• Smooth amplitude tracking
• Low-latency envelope detection

Perfect for:

• Audio-reactive visuals
• Sidechain-style effects
• Dynamic parameter control
• Live audio analysis
• Expressive instrument design

Related Processes

• Analysis - Audio feature extraction
• Gate - Amplitude gating
• Compressor - Dynamic range control
• LFO - Alternative modulation source

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