Here is a nice article on a study of baseball bats using microphones. https://www.acs.psu.edu/drussell/bats/papers/AcousticsToday_Winter2017_Russell.pdf https:/

Here is a nice article on a study of baseball bats using microphones. https://www.acs.psu.edu/drussell/bats/papers/AcousticsToday_Winter2017_Russell.pdf https://www.acs.psu.edu/drussell/bats/papers/AcousticsToday_...