Nun4tak SP4T

A VCV Rack plugin providing ambisonic 3D spatial audio modules.

Ambisonic input/output signals use the ACN channel ordering and SN3D normalization conventions (ambiX), unless otherwise specified. They are carried between modules by polyphonic cables: 4 channels for 1st order, 9 for 2nd, 16 for 3rd.

• Ambisonics
  • What is ambisonics?
  • Why ambisonics in modular synthesis / VCV Rack?
  • How to interpret the ambisonic channels?
• SP4T Modules
  • Encoders
    • SP4T Stereo In
    • SP4T Source4 In
  • Decoders
    • SP4T Stereo Out
    • SP4T Ears Out
  • Processors
    • SP4T Rotate
    • SP4T Flip
    • SP4T Blur Sharp
  • Utilities
    • SP4T Gain
    • SP4T Mute
    • SP4T Split Insert
    • SP4T Split
    • SP4T Merge
    • SP4T Smear

Code repository

The source lives at github.com/nun4tak/sp4t-vcv-plugin, under the GNU General Public License v3. Bugs, questions and ideas are welcome in the issue tracker.

Acknowledgment

Most of the ambisonic DSP in these modules relies on the Spatial Audio Framework (dual ISC / GNU GPLv2 licence), which also powers the SPARTA audio plugins. Many thanks to its developers for making it available publicly!