amSynth is a two oscillator, real-time analogue modelling software synthesizer with a classic subtractive synthesizer topology.
Its operation is similar to analog Moog Minimoog and Roland Juno-60 synthesizers from the 1970s.
The aim was to keep the synth easy to use, so you can more easily get the sounds you want.
Key Features
- Two analogue-style audio oscillators, featuring:
- Sine wave.
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- Saw/triangle wave with adjustable shape.
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- Square/pulse wave with adjustable pulsewidth.
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- Noise generation.
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- “Random” wave (noise with sample & hold).
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- Oscillator sync.
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- Detune and range control.
- Mixer section with ring modulation.
- Analogue-style low-pass filter:
- 24dB/octave curve.
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- Dedicated ADSR envelope.
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- Cutoff and resonance control.
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- Keyboard pitch tracking.
- Amplifier with dedicated ADSR envelope.
- Modulation LFO:
- Up to 58Hz modulation.
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- Routable to all sections (pitch, filter, amplifier).
- Effects:
- High quality stereo reverb (freeverb).
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- Distortion/crunch.
- Easy navigation and manipulation of presets.
- Large library of presets.
- Stand-alone application using JACK, ALSA or OSS
- DSSI plug-in.
- LV2 plug-in.
- VST plug-in.
Website: amsynth.github.io
Support: GitHub Code Repository
Developer: Nick Dowell, Brian, and contributors
License: GNU General Public License v2.0

amSynth is written in C++. Learn C++ with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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