Some sounds

Recently, as an exercise, many of us in Audio were tasked with making three kinds of sounds: power-ups, menu selects, and creature noises. Our raw material was a bubble sound, footsteps, a closing door, and a braying donkey, and we could only use the default effects in SoundForge.

Here are mine:

PowerUp1

( Step-by-step )

PowerUp2

( Step-by-step )

PowerUp3

( Step-by-step )

Select1

( Step-by-step )

Voice1

( Step-by-step )

Voice2

( Step-by-step )

BONUS: Raw heartbeat, Twonky

When we recorded the result of the Doppler ultrasound, it was pretty messy, so I decided to clean it up before posting. The first couple of heartbeats were fairly isolated, so I ran a spectrum analyzer on them to find out what frequencies were most important, and then took everything but those frequencies out of the file so that the heartbeat would be more apparent.
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(1) If you time-stretch something too far, these artifacts make the result sound...uh...ribbed...because the DAW is basically blowing up a 100x100 picture into fullscreen.

(2)Pitch bends that are relatively tiny can still sound huge. IIRC, the ripple only goes up by 0.2 semitones from start to finish, but it's still wicked noticeable.

(3)A closing door is comprised of two sounds; the sound of the tongue first impacting the slot, and then the mass of the door settling into place.

(4)Inserting silence at regular intervals.

(5)What I like about convolution is that it gives sounds a kind of acoustic halo, an otherworldly quality. It also can completely transform a sound into something totally unexpected and cool.