1. Modify Play That Tune to take additional command-line arguments that control the volume (multiply each sample value by the volume) and the tempo (multiply each note’s duration by the tempo). 2....

1. Modify Play That Tune to take additional command-line arguments that control the volume (multiply each sample value by the volume) and the tempo (multiply each note’s duration by the tempo).

2. Write a program that takes the name of a .wav file and a playback rate r as command-line arguments and plays the file at the given rate. First, use StdAudio. ead() to read the file into an array a[]. If r = 1, play a[]; otherwise, create a new array b[] of approximate size r times the length of a[]. If r <> 1, populate b[] by interpolating from the original. Then play b[].