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 third position, i.e., copy from index 0 in the input into the canvas at index 0, then copy from index 3 (skipping index 1 and 2) in the input into the canvas at index 3. What do you hear in the canvas sound? Same sound? Faster? Slower?

Question

What will be an ideal response?

Answer 1

Again the sound is the same length, but even more grainy this time.

```
def alternateCopy2(source):
target = makeEmptySound(getLength(source))

for index in range(0, getLength(source), 3):
sourceValue = getSampleValueAt(source ,index)
setSampleValueAt(target, index , sourceValue)
play(target)
return target
```