Nick,
It does, (marginally), but as Dave says, a great Tuba player can coordinate the delay between tonguing, valving, and meshing with the other instruments without problem.
Also, it's not the air that comes out the bell so much as the sound. And sound travels at around 600MPH at one atmospheric pressure. So the moment you make a sound on one end of the Tuba (lips buzzing/flapping), it is audible fairly instantly at the other end. However, the resonance and vibration may take some time to build up, as it does in any instrument.
Evan Evans
It does, (marginally), but as Dave says, a great Tuba player can coordinate the delay between tonguing, valving, and meshing with the other instruments without problem.
Also, it's not the air that comes out the bell so much as the sound. And sound travels at around 600MPH at one atmospheric pressure. So the moment you make a sound on one end of the Tuba (lips buzzing/flapping), it is audible fairly instantly at the other end. However, the resonance and vibration may take some time to build up, as it does in any instrument.
Evan Evans