Acoustic Evidence in the Assassination of President Kennedy

Committee on Ballistic Acoustics audio files, used in CBA and subsequent reports. (CBA Report Media Files on National Academy site)

Kennedy Assassination Dallas Police Radio Recording, Channel 2 (YouTube: DPD Ch2)

Dictabelt Hums and the "hold everything secure" Crosstalk (YouTube: Hums and Crosstalk)

Dictabelt 9 45 am 11 22 1963 (YouTube: DPD Ch1 Introduction)