Audacity For Phone -

: Highlight the track or clip you want to change.

: Use the Noise Reduction effect to clean up background hums. Audacity For Phone

: Go to the Effect menu, then select Filter Curve EQ . : Highlight the track or clip you want to change

If your goal is to make audio sound like a using the desktop version of Audacity , you can use the built-in preset: you can use the built-in preset: