Tenebris is my new itc app based on wwii theme and as all my other apps uses reverse audio banks. Using a new engine that should help reduce strain on older devices.
The sweep rate buttons now give you more precise control as with a single press you can now go one point at a time. To jump 25 at a time you long press the sweep button until you get close to your desired sweep rate.

Once you have you sweep rate just hit the power button to go and the app will randomly sweep between the 9 banks of audio at your selected sweep rate.

The banks use actual audio from the ww2 radio broadcasts and radio communication between the bombers and home base ect