Write a function that inputs a frequency, a maximum amplitude, a percentage of blend (e.g., 0.25 to represent 25%), and length in seconds. Create two sounds, one a square and one a triangle, using the same inputs. Add the sounds together, with the blend percentage of the square and 100—blend of the triangle. How does the sound change if you try 0.25, 0.5, and 0.75 as the blend percentages?

Question

What will be an ideal response?

Answer 1

The sounds don’t sound all that different with different blend percentages, they largely just sound louder the larger the percentage gets. However, the sound also does sound more “warbly” with the lower blend percentages, as there’s more of a difference between the two sounds.

```
def combineShapeSounds(freq, amplitude, percentBlend, seconds):
square = squareWave(freq, amplitude, seconds)
triangle = triangleWave(freq, amplitude, seconds)
canvas = makeEmptySoundBySeconds(seconds)

for index in range(0, getLength(canvas)):
triSample = getSampleValueAt(triangle, index)
squareSample = getSampleValueAt(square, index)*percentBlend

newSample = triSample + squareSample
setSampleValueAt(canvas, index, newSample)
play(canvas)
return canvas
```