Full free trial · no watermark

Felted Synth — the felt piano, physically modelled.

A felt piano plugin that is a true physical model — no samples — fused with a six-character analog-style filter, bowed strings and an evolving drone engine. From whisper-soft upright to cinematic soundscape, in one instrument.

$69 Full free trial One-time purchase · full free trial, no watermark · AU, VST3 & Standalone · macOS 11+ (Apple Silicon & Intel) · lifetime updates
Full free trial, no watermark AU, VST3 & Standalone Lifetime updates
Felted Synth physically-modelled felt piano synthesizer plugin interface
Physical modelno samples
$69full free trial
One instrument, many colors

From whisper-soft upright to cinematic soundscape

Whisper-soft felt piano Cinematic soundscapes Bowed string textures Evolving drones Lo-fi keys Analog-filtered pads
What's inside

A felt piano that goes further

Felted Synth starts with a physically-modelled felt piano, then fuses it with an analog-style filter, bowed strings and drones — one instrument for the intimate and the immense.

Physically-modelled felt piano

A true physical model, not a sample library — the felt piano is generated live, so it responds to your playing like an instrument, not a recording.

Six-character analog filter

An analog-style filter with six distinct characters shapes the tone — keep the piano soft and intimate, or push it into bold, colored territory.

Bowed strings

Bowed string tones add sustained, singing lines and slow swells — a legato counterpart to the felt piano's soft attack.

Evolving drone engine

A drone engine generates slow-moving, evolving beds — the cinematic-soundscape half of the instrument, for pads and underscore that shift over time.

AU, VST3 & Standalone

Loads in any AU/VST3 host on macOS — Ableton Live, Logic Pro, FL Studio, Studio One, Cubase, Bitwig, Reaper — or runs standalone, no DAW required.

Full free trial

Try the complete instrument free — every feature, no watermark. Keep it for a one-time $69 with lifetime updates included.

Where it shines

Three instruments' worth of use cases

The felt piano handles the intimate moments, the drones handle the atmosphere, and the bowed strings sing in between.

Intimate felt piano

The muted, close-up felt tone at the heart of lo-fi beats, ambient music and modern scoring. Play it whisper-soft and let the room do the rest — it pairs beautifully with Aurora, our free shimmer reverb.

Evolving drones & underscore

Slow-moving drone beds for pads, tension and underscore. Layer a drone quietly beneath the felt piano and a simple progression becomes a soundscape.

Bowed textures

Sustained, string-like lines and slow swells for melodies that need to breathe — a bowed voice that complements the piano's soft attack in cinematic and ambient work.

Compatibility

Made for the Mac

AU, VST3 and Standalone for macOS 11 and later — native on Apple Silicon and Intel.

Price
$69 USD one-time · full free trial with no watermark · lifetime updates.
Formats
AU (Audio Unit), VST3 and a Standalone app — all included.
macOS
macOS 11 Big Sur and later · Apple Silicon & Intel.
Windows
Not currently supported — Felted Synth is macOS-only at the moment.
Hosts
Ableton Live, Logic Pro, FL Studio, Studio One, Cubase, Bitwig, Reaper and any AU/VST3 host on macOS — or play it standalone.
Delivery
Instant download via Gumroad.
Maker
Built by Reinhardt Buhr / Buhr Audio — clean, musical, CPU-friendly plugins.
Hear it on your own tracks

Start the Felted Synth free trial

Download the full-feature free trial — no watermark — and play the felt piano, bowed strings and drones in your own session. One-time $69 to keep it, with lifetime updates.

From the blog

Go deeper into felt & physical modelling

Free guides on the felt piano sound and physically-modelled instruments.

FAQ

Good to know

Is Felted Synth a sample library or physical modelling?
Felted Synth is a physical model, not a sample library. The felt piano is generated in real time rather than played back from recordings, and it's fused with a six-character analog-style filter, bowed strings and an evolving drone engine. It's the same modelling philosophy behind our Physical Modelling Handpan.
Which formats and platforms are supported?
Felted Synth ships as AU, VST3 and a Standalone app for macOS 11 and later, running natively on Apple Silicon and Intel Macs. It is currently macOS-only.
Which DAWs does Felted Synth work in?
Any AU/VST3 host on macOS — Ableton Live, Logic Pro, FL Studio, Studio One, Cubase, Bitwig and Reaper among them. You can also play it as a Standalone app without opening a DAW at all.
Is there a free trial?
Yes — a full-feature free trial with no watermark, so you can play the entire instrument in your own sessions first. When you're ready, the full version is a one-time $69 via Gumroad.
Does Felted Synth run on Windows?
Not currently. Felted Synth is macOS-only at the moment, supporting macOS 11+ on Apple Silicon and Intel.
How much does it cost — and are updates included?
Felted Synth is $69 USD one-time — no subscription — and includes lifetime updates. Start with the free trial and only buy once it has earned a place in your template. New to the felt sound? Read our guide to the best felt piano VST.