During a explosion, does the shockwave increase the speed/decrease the time at which sound is heard?

Question

When a large explosion goes off, does the sound reach you faster as an observer because the shockwave pushed the air towards you faster?

http://www.maniacworld.com/massive-detonation-of-100-tons-of-explosives.html

Answer 1

To get a shock wave something has to be travelling faster than the local speed of sound.

...Because of this amplification effect, a shock wave is very intense, more like an explosion when heard (not coincidentally, since explosions create shock waves).

Answer 2

A shock wave is qualitatively different from normal sound in that it involves a fluid discontinuity and nonadiabatic compression. A shock does propagate faster than the ambient speed of sound, but the air in front of it is entirely undisturbed by it before it arrives. The stronger the shock wave is, the faster it goes. The details are described by Hugoniot relations (ref) for mass, momentum, and energy conservation. Qualitatively, shock heating speeds everything up.

Answer 3

when it comes to shock waves from explosions first you feel them then you hear them! The shock wave travels faster than the speed off sound!