[wpietri]

Very neat! May I suggest adding a button to switch to log scale for frequency? I love the ability to select and play back just a particular set of frequencies. But voice uses only about ~15% of the screen height [1], so it's hard to play with.

[1] https://en.wikipedia.org/wiki/Voice_frequency

[ssgh]

You can select an area and zoom into it. Another option is to change sample rate in the config in the top right.

[wpietri]

Zooming is not really a way to get what I'm after, because I was trying to hear particular bands one after the other. E.g., trying to listen to one octave after the next. And since the octave relationship isn't linear, I'm thinking a non-linear scale would better match what I was trying to do.