Figure 1From: Analytical Features: A Knowledge-Based Approach to Audio Feature GenerationThe human ear is insensitive to phase differences, making the temporal representation of audio signals ill-suited for perceptual coding; (a) shows the sum of two sine waves (1 kHz and 3 kHz); (b) 3 kHz sine wave was phase shifted by pi before summation. Although the waveforms are substantially different, the ear perceives them as similar.Back to article page