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Figure 4c

Figure 4c: Waveform display of the program #2-restored version of the 11.025 kHz /
8-bit 1 kHz sine wave signal depicted in Figure 4a, after it had been clipped to +12
decibels.

Waveform display of the program #2-restored version of the 11.025 kHz / 8-bit 1 kHz sine wave signal depicted in Figure 4a, after it had been clipped to +12 decibels. Time is on the horizontal axis moving from left to right over 60 milliseconds, and amplitude is on the vertical axis. The waveform of this program #2-restored version more closely resembles that of the original, unclipped signal depicted in Figure 4a than does the program #1-restored version depicted in Figure 4b. However, differences still exist, indicating that the restoration was not transparent.