Audio data is inherently complex and dense. Unlike text, where redundancy is common (think repeated words or phrases), audio signals are continuous streams of varying frequencies and amplitudes. These signals can include everything from human speech and music to ambient noises and complex soundscapes. The richness and variety in audio data make it challenging to identify and eliminate redundancy without losing essential information. Human perception of sound Human ears are sensitive to a wide range of frequencies, from about 20 Hz to 20 kHz.