Write a function to change the frequency of a sound 10 times—five times lower than the original frequency, and five times higher.
Note: The function does not specify the amount to change the frequency by, therefore shifting it by any amount between one and zero five times then any amount greater than one five times will work. The easiest way to do this is to make use of the “halve” and “double” functions from this chapter. However, this will be very slow.
```
def raiseThenLower(sound):
#Lower Five Times
sound = halve(sound)
sound = halve(sound)
sound = halve(sound)
sound = halve(sound)
sound = halve(sound)
#Raise Five Times
sound = double(sound)
sound = double(sound)
sound = double(sound)
sound = double(sound)
sound = double(sound)
return sound
```
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