n-Track Studio updated

An update for n-Track Studio universal. Here's what's new:

• Support for multichannel external audio devices on the iPad: record 4 or more tracks simultaneously fro pro-audio devices such as the RME Fireface UCX
• Set recording resolution to 16, 24 or 32 bits
• Customize sampling frequency
• Customize buffering/latency. Allows monitoring input with near-unhearable latency