Chris Ayer

Pt. 1:  SPEED OF SOUND

Tube = 1/2 meter

So 1 echo is a 1 meter distance

Time for one echo as measured on snd: .003 seconds

1 M/ .003 seconds = 1000/3 M/S = 333.3 M/S

 333.3 M/S as calculated

Picture of echoes in tube upon impulse, creating the effect of a perceived pitch:

Pt. 2: DIGITAL MODEL OF TUBE'S RESONANCE USING SCHEME

Picture of Waveform created by echoing and decaying an impulse using Scheme programming in coordination with Snd:

interval between echoes = .003 seconds

SAME AS ACTUAL EXAMPLE

Result:

    Though not identical, the sound of the new waveform is remarkably similar to the sound of my pipe upon inpulse.