Melthaven
Note-triggered phase shifter
About
This app provides a note-triggered phase shifter for guitarists, bassists, and synthesizers. It offers organic, rhythmic movement that syncs to your playing, with analog-modeled filters for diverse sonic textures. Enhance loops or create experimental sounds with its input-dependent modulation.
What's New in Melthaven
1.1.0
May 28, 2026
• Mix and FX (wet) level controls added to the Pro Edition • Fixed an issue around plugin initialization, potentially impacting saved state reloads or initial effect state • Envelope levels before the very first note now correctly match those of subsequent notes (e.g. after a preset load) • Stereo re-imager now supports tempo syncing • Reduced startup times • Improved fidelity for envelope visualization
MoreIn-App Purchases
$4.99
Melthaven Pro
Pro presets, Deep parameter editing, Additional modes
Developer apps
FAQ
What is Melthaven?
Melthaven is a music app that functions as a note-triggered phase shifter. It's designed to add organic, rhythmic movement to guitar, bass, and synthesizer sounds by syncing modulation to your playing.
What kind of sounds can Melthaven create?
Melthaven uses analog-modeled OTA filters to produce a wide range of tones, from wah-like effects and complex formant textures to experimental bubbling or hard, slappy sounds. It can also create growls and glistening sweeps for bright, harmonically dense signals.
Can Melthaven be used with loops?
Yes, Melthaven can be used to add resonant effects like growls or vintage bark to pre-recorded loops. This allows you to reshape the envelope of existing samples and breathe new life into your loop library.
How does Melthaven work with synthesizers?
Melthaven's results with synthesizers vary based on the input signal's transients. For sounds with softened transients, it can produce unpredictable and experimental responses, which can be tamed with the dedicated smoothing feature for a more fluid feel.
What are the base features of Melthaven?
The base version includes controls for feedback, panoramic position, attack and hold timings, and LFO Rate. It also features a smoothing control for envelope shaping and a low-latency engine to preserve natural playing feel.
What does the Pro Edition Upgrade offer in Melthaven?
The Pro Edition Upgrade, available as an in-app purchase, adds additional envelope parameters and flavors, Pro presets, enhanced stereo phaser modes, and vintage-style phaser feedback that can ramp with each note onset.
Is Melthaven suitable for beginners?
Melthaven is built around a versatile preset from the Pro version, making it suitable for a wide variety of applications. Its intuitive design and responsive nature should be accessible to musicians of different experience levels.
Does Melthaven have ads?
No, Melthaven does not contain advertisements. It is a free app with optional in-app purchases for advanced features.