AudioSwift overview

AudioSwift allows you to use your trackpad as a control surface and MIDI controller in your DAW.

Mixer: Control one or two faders at the same time using simple touches. Move the panning, set the send's levels, use your trackpad as a jog wheel, and write automation in a quick and easy way. It is currently supported in Logic Pro, Pro Tools, and Ableton Live. (The jog wheel and master fader are only available in certain DAWs).
Trigger: Devide your trackpad in different zones to start making beats, or play sustained notes. Up to three notes can be played at the same time.
Scale: Choose a tonic note and then select a scale. Slide your fingers from left to right to play notes in the selected key. Apply pressure to the trackpad and it will send aftertouch MIDI messages. (Aftertouch requires a trackpad with Force Touch).
XY: Use your trackpad as an XY pad to control several parameters at the same time, using one, two and three fingers configurations.