Vital

Vital is a spectral warping wavetable synthesizer.

Discover how warping the harmonic makeup of a wavetable can completely create a new set of sounds. Stretch, shift, smear and skew harmonics up, down and around the spectrum to explore new timbres and create sounds you didn't think possible with wavetables.

See how everything works while you play in this visual synth. Vital has animated graphical displays when you need them. Everything moves in real-time so you can see what's going on behind the scenes.

Quickly design sounds with an optimized drag-and-drop modulation workflow. The modulation preview gives you an idea of what things will sound like before you drop the connection. With this, you can try modulating different destinations by dragging around the screen.

Discover new design techniques using Vital's unique features like stereo-modulation. Stereo split an LFO to have the left channel's modulation delayed from the right or give slight stereo time differences to an envelope to create wider stereo effects.

Helm

Helmは、柔軟なモジュレーションシステムを備えた、クロスプラットフォームな無料のポリフォニックシンセサイザーです。Helmはオープンソースであり、どこでも自由に使用したり、ソースコードを調べて変更したり、Helmのそのままのコピーまたは変更されたコピーを再配布したりできます。

Helm is a free, cross-platform, polyphonic synthesizer with a flexible modulation system. Helm is open source and you are free to run it anywhere, study and change the source code, and redistribute exact or modified copies of Helm.