Try rewriting the Program so that you have a linear increase in volume to halfway through the sound, then linearly decrease the volume down to zero in the second half.

Question

What will be an ideal response?

Answer 1

```
public void linear IncreaseDecrease (double maxChange )
{
int length = this . getLength ( ) ;
int half = length / 2 ;
double change = maxChange / half ;
double totalChange = change ;
int value = 0 ;
// loop increasing each time to half
for ( int i = 0 ; i < h a l f ; i++)
{
value = this . getSampleValueAt ( i ) ;
value = ( int ) ( value * totalChange ) ;
totalChange = totalChange + change ;
this . setSampleValueAt ( i , value ) ;
}
// loop decreasing each time to end
for ( int i = h a l f ; i < this . getLength ( ) ; i++)
{
value = this . getSampleValueAt ( i ) ;
totalChange = totalChange - change ;
value = ( int ) ( value ¤ totalChange ) ;
this . setSampleValueAt ( i , value ) ;
}
}
```