--- title: "FAC Envolver — App Overview" url: https://marlvel.ai/apps/fac-envolver category: Music developer: Frederic Corvest platforms: ios rating: 4.9 (41 ratings) pricing: paid report_level: overview generated: 2026-04-24 last_verified: "2026-04-24T11:53:06.396Z" --- > **Key Insight:** FAC Envolver is a specialized tool for breathing life into static sounds by using audio dynamics to drive MIDI-controlled synthesizer parameters. | Metric | Value | |--------|-------| | Category | Music | | Rating | 4.9 ★ (41) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 2.3 | | Developer | Frederic Corvest | ## What is FAC Envolver? FAC Envolver is a MIDI effect plugin that transforms audio signals into MIDI control change (CC) data and notes. It utilizes an envelope follower and a rhythmic trigger gate to modulate synthesizer parameters, providing dynamic sound shaping and sequencing capabilities. ## Key Features - **Envelope Follower**: Generates MIDI CC messages based on the contour of an input audio signal. - **Trigger Gate**: A rhythmic pattern circuit that provides an alternative source for generating MIDI control data. - **Audio Effects**: Includes integrated Noise Gate and Trance Gate effects to process and transform input audio. - **Gate Detection**: Features a threshold-based mechanism to trigger MIDI events when the input signal exceeds a defined level. ## Who is it for? Music producers and sound designers looking to dynamically modulate synthesizer parameters and trigger MIDI events from audio sources. ## Links - [App Store](https://apps.apple.com/us/app/fac-envolver/id1378195291?uo=4) - [Full Intelligence Report](https://marlvel.ai/apps/fac-envolver) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/fac-envolver).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*