Awesome
Helm
Helm is a free, cross-platform, polyphonic synthesizer that runs on GNU/Linux, Mac, and Windows as a standalone program and as a LV2/VST/AU/AAX plugin. Release is in beta so there are outstanding bugs. Please send any bugs found to matthewtytel@gmail.com
Installing:
Go to tytel.org/helm for builds.
Building:
If you want to build AAX plugins You'll need its SDK located in ~/srcs
For AU on the Mac you'll want to put the CoreAudio SDK in /Applications/Xcode.app/Contents/Developer/Extras/CoreAudio
Nothing extra is needed for building VST/LV2 plugins
Linux
To build and install the standalone, lv2 and vst plugin:
make
sudo make install
Other make commands:
# Build just the Linux standalone executable:
make standalone
# Build just the Linux LV2 plugin:
make lv2
# Build just the Linux VST plugin
make vst
# Install just the Linux standalone executable:
sudo make install_standalone
# Install just the Linux LV2 plugin:
sudo make install_lv2
# Install just the Linux VST plugin
sudo make install_vst
The standalone executable is built to standalone/builds/linux/build and installed to /usr/bin The LV2 plugin is built to builds/linux/LV2 and installed to /usr/lib/lv2 The VST plugin is built to builds/linux/VST and installed to /usr/lib/lxvst
OSX
Open /standalone/builds/osx/Helm.xcodeproj for standalone version
Open /builds/osx/Helm.xcodeproj for plugin versions
Windows
Open /standalone/builds/vs15/Helm.sln for standalone version
Open /builds/vs15/Helm.sln for plugin versions
Features:
- 32 voice polyphony
- Interactive visual interface
- Powerful modulation system with live visual feedback
- Dual oscillators with cross modulation and up to 15 unison oscillators each
- Sub oscillator with shuffle waveshaping
- Oscillator feedback and saturation for waveshaping
- 12 different waveforms
- Blending between 12 or 24dB low/band/high pass filter
- Low/Band/High Shelf filters
- 2 monophonic and 1 polyphonic LFO
- Step sequencer
- Lots of modulation sources including polyphonic aftertouch
- Simple arpeggiator
- Effects: Formant filter, stutter, delay, distortion, reverb