Back To Back Perseid Meteors with Audible Ping

These meteors were found to be early Perseid meteors. The audio ping was obtained by using a 500 foot long telephone wire connected to my PC soundcard. This allows me to capture atmospheric sounds that are either VLF frequencies or ionization in the air. In this case, it picked up the ionization in the upper atmosphere caused by the meteors. This event was captured in Puerto Rico on July 22, 2019 at 4:46am local time (08:46 UTC).