These sounds and images have been captured by the U.S. Air Force Space Surveillance Radar located in Texas, USA. The amazing sounds are the first time that the sounds released by meteors have been heard like this. In this case, it is the Perseid meteor shower that took place last month.
According to the text on YouTube;
The U.S. Air Force Space Surveillance Radar in Texas recorded echoes of the Perseid Meteors as they passed over the monitoring facility. Includes imagery of a meteor photographed by astronaut Ron Garan aboard the International Space Station.
Source [Geeks Are Sexy]