I practice playing a Bb trumpet using this spectrum analyzer, chromatic tuner, metronome, and audio recorder. Studying my sound in the frequency and time domains helps improve my playing.
I would suggest the following feature to be added: Allow the user to preset the range of frequency and time. The current version allows the user to zoom in or out using 2-finger gestures. Because the region of interest for me is between 0 and 3 kHz, and because I need to view that region in detail, I need to adjust the frequency scale every time I use or reset the app. Furthermore, the 2-finger gesture sometimes bounces the scale such that the origin is not 0 kHz 0 seconds. Allowing the user to select the default range of frequency and time would save lots of time.
Thanks for a nice product.
OregonCoast2 about Audio Analyzer