Flowstoners has released
Quilcom Wavemaker 4, a creation tool for
waveform geeks.
This is a tool to create and process
single cycle waveforms for use in synths and
samplers.
It can extract a harmonic series or
a single cycle from a loaded or recorded sound file.
You can also draw and optionally smooth waveforms
and audition them with a basic MIDI synth, which can
also morph between any two waveforms, manually or
via the envelope generator.
There is a video you can watch to
get an overview.