Audio Signals:

Britney Spears
Original Signal
After Original Algorithm
After Overlap Save Algorithm

Duel of the Fates
Original Signal
After Original Algorithm
After Overlap Save Algorithm

Speech
Original Signal
After Original Algorithm
After Overlap Save Algorithm

Spectrograms:

Britney Spears
Original Signal
After Original Algorithm
After Overlap Save Algorithm

Duel of the Fates
Original Signal
After Original Algorithm
After Overlap Save Algorithm

Speech
Original Signal
After Original Algorithm
After Overlap Save Algorithm

An inspection of the spectrograms shows that our original algorithm causes smearing in the frequency domain.  Signals processed using the overlap save algorithm have a frequency response nearly identical to that of the original unprocessed signal.  This was expected; our original algorithm treated the infinite length input signal as a series of finite segments.  The segments were simply reconnected for transmission, leading to distortion at all the connection points.  The overlap save algorithm allows the segments to be reconnected with relatively no distortion.  Qualitatively, the signal processed using overlap save sounded clearer than the signal processed using our original algorithm.  The original algorithm caused popping sounds to occur in the processed signal.