Tag Index building-block Linear to Exponential Conversion commentary 39C3 Building Hardware Talk module ADSR Envelope Generator Dual Gate Delay Mixer+ More Modules Output Module State Variable Filter Updated Gate Delay news 2025 Year in Review Welcome patch Patch Diagrams for Mermaid reference Linear to Exponential Conversion signal-processing More Modules State Variable Filter sources ADSR Envelope Generator More Modules utility Dual Gate Delay Mixer+ Output Module Updated Gate Delay