This video, via Peak Eleven, takes a look at using the TEControl BBC2 breath controller.
The BBC2 is designed to let you add expression to performances. It adds four additional options for expressive control: breath, bite, nod & tilt.
Video Summary:
Live Demo + Overview of the amazing MIDI Breath Controller from TEControl (BBC2) for adding expression, motion and emotion to your software instruments and performances.
This is a USB Breath Controller that converts your input into MIDI CC values which you then map to your software instruments and sample libraries to control expression, dynamics, filters and basically anything that you can map MIDI CC to.
Like to buy the tubing that gos to the USB plugin
Maybe this? http://www.tecontrol.se/products/breath-controller-headset
https://www.youtube.com/watch?v=0oE7_EHCjPE
With some practice the TEControl breath controller can produce unbelievably realistic results. This guy from Argentina is absolutely a master!
https://www.youtube.com/watch?v=zEhZnmOjQFI
https://www.youtube.com/watch?v=qi8vHCRdhlQ
it also works great with SWAM violins
https://www.youtube.com/watch?v=2QXgELsiSX4