CALABASAS, Calif. -- A previous version of this report included audio of the helicopter crashing but has since been removed. The sounds of the low-flying helicopter and subsequent crash that killed ...

Recording stops and starts. Content is in left channel only. Recording ends 00:03:10. Recording contains sounds of flying helicopters. Recording is source material for David Ireland's installations.

Recording content is continuous helicopter engine and rotor sounds. Recording is source material for David Ireland's installations. Notes copied from the tape: Helicopter Original '93. David Kenneth ...

Shooting fireworks out of a helicopter sounds fun. Shooting fireworks out of a helicopter at a Lamborghini sports car sounds really fun, especially if everyone on the helicopter and everyone in the ...

HOUSTON, Texas (KTRK) -- Heads up, Houstonians! Law enforcement agencies will begin their annual training exercises this week, and you may hear it in your neighborhood. Starting Tuesday, the ...

On Mars, the speed of sound depends on its pitch. All sound travels slower through Mars’ air compared with Earth’s. But the higher-pitched clacks of a laser zapping rocks travels slightly faster in ...

CALABASAS, Calif. -- A previous version of this report included audio of the helicopter crashing but has since been removed. The sounds of the low-flying helicopter and subsequent crash that killed ...