NOTE: superseded by new v.4

Roundtone is a tape machine emulation.

It adds typical tape recording interesting side-effects to every audio track.

Useful on single tracks (mono/stereo) and on submixes/mixes.

Very light on CPU and latency-free, adds punch, color and gently compresses the sound.

Includes several algorithms (different tape, saturation curve, color, response).

“Emphasis” control adds color while preservating the high frequencies.

Includes an optional 2nd stage of saturation (head).

v.2: Multi-track and Multi-machine modes. Link several tracks to the same Tape Machine to control from a single interface. Trasform any host to a virtual Multitrack Tape Recording system

v.2: Multimode oversampling (with optional “on export” mode for low cpu load). Hi-Quality (non linear phase, IIR) and Super-Quality (linear phase, FIR) oversampling. Select “Now” modes for realtime, “Export” modes for rendering

v.2: 7.5ips algorithms and “Dirty” algorithms for more harmonics

v.2: dry/wet mix knob with sample accurate alignment

v.3: New B enhancer

v.3: Stereo Tape Delay with synch

v.3: Wow and Flutter

v.3: Flange

v.3: Noise

v.3: New “Bright Formula” and “Lo-Fi” algorithms

v.3: New meter

Demo by Matt Bentley (mattbentley_dot_net)

“Wronged” – original

“Wronged” – through tape

On all submixes except drums and background synth (used it on background strings). Partial usage on vox.

Pop-Electro demo by Giuseppe Novella

Demo_by G. Novella – original

Demo by G. Novella – through tape

Roundtone on every track

Sax performance (mid-side recording)

Recorded by Christian Spataro

Roundtone inserted and bypassed several times.


Demo by Mauro Ghilardini

Roundtone on every track



Demo by Rifftrax.

Roundtone on every track and a bit on the master bus


Available as VST and AU, for 32 and 64 bit systems, on OSx and Windows platforms.