Congratulations on building a nice-looking app that addresses a legitimate need.

I'd like to see some proof that this is able to accurately measure noise level across a range of devices. The CDC have a sound meter app [1] which has been tested to 2db accuracy, and they only make that available on specific Apple devices because calculating noise level depends on the hardware.

I'm sorry to ask, but I'm seeing many cases of AI apps making accuracy claims based on the author’s ‘reasonableness spot checks’ but with no statistical testing that the outputs are accurate.

[1] https://www.cdc.gov/niosh/noise/about/app.html