I encourage you to share what you’ve already tried, even if it’s just a small test sketch or a first attempt. That way others can understand where you’re stuck and give you more useful feedback.
1: Emits / generates short impulses through both left and right speakers simultaneously (mono) at given Hz from a true pulse waveform.
2: Samples and displays output from (1) using a trigger val eliminating any unwanted background noise.
3: Shows amplitude of (2) from input mic, including reflections / pulsed wave interference (constructive / de-constructive).
4: Constructive will result in higher output peaks (meaning (1) is left / right is in phase, de-constructive - left / right is out of phase (lower output peaks). (Adjusting left / right speaker placement / distance will ensure phase matching)
(Additional peaks will show reverb / reflections from (1) )
Hopefully makes sense??
Needs the Sound library to function, so testing will need installation).