2. DSP Term Project By: Ashley Downs And Jeff Malen By: Ashley Downs And Jeff Malen

3. Sound Effects  Delay  Multiple Echoes  Natural Reverb  Flanging  Delay  Multiple Echoes  Natural Reverb  Flanging

4. Delay  Delay takes an audio signal and plays it back after the delay time (several milliseconds to several seconds).

5. Sound Files for Delay  Input Sound  Output Sound  Input Sound  Output Sound

6. Multiple Echo Filter  H(z)= Z^-R.  (1- alpha * (Z^-R))  H(z)= Z^-R.  (1- alpha * (Z^-R))

7. Impulse Response of a Multi Echo Filter

8. Sound Files for Multiple Echo Filter  Input Sound  Output Sound  Input Sound  Output Sound

9. Reverberation  Reverberation is the result of many reflections of a sound that occur in a particular space.

10. Natural Reverberator  The Schroeder’s Reverberator  Combination of 4 Comb and 2 All Pass.  The Schroeder’s Reverberator  Combination of 4 Comb and 2 All Pass.

11. Sound Files for Natural Reverberator  Input Sound  Output Sound  Input Sound  Output Sound

12. Flanging  H(z)= (1+ alpha*(Z^-beta(n)))

13. A Time Varying Delay Function

14. Sound Files for Flange Effect  Input Sound  Output Sound  Input Sound  Output Sound

15. That’s All Folks!