Proximity Audio is a team of audio and technology professionals that are passionate about creating digital tools for the audio industry.  Our flagship product is Patchrat, an iOS application for managing studio documentation, production workflows and equipment settings. Proximity Audio has also created TempoToolkit, an easy to use iOS app that is a collection of utilities for musicians and engineers that includes tap-tempo BPM, two-mode metronome, and note-value conversion table in ms/Hz.