Write a function to input a sound, then create a canvas sound of the same length. Copy samples from the input into the canvas every other position, i.e., copy from index 0 in the input into the canvas at index 0, then copy from index 2 (skipping index 1) in the input into the canvas at index 1. What do you hear in the canvas sound? Same sound? Faster? Slower?
What will be an ideal response?
The sound is the same speed, but it sounds much “grainier” or lower quality. This makes sense as we’ve essentially copied less samples for the same sound.
```
def alternateCopy(source):
target = makeEmptySound(getLength(source))
for index in range(0, getLength(source), 2):
sourceValue = getSampleValueAt(source ,index)
setSampleValueAt(target, index , sourceValue)
play(target)
return target
```
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