The spectral slope is a measure used in various fields, including audio signal processing and acoustics, to describe the rate at which the energy of a signal's spectrum decreases as frequency increases. It provides insight into the characteristics of an audio signal, such as its timbral texture or the relative balance of low and high frequencies. In practical terms, the spectral slope is calculated by analyzing the amplitude (or power) of the signal's frequency components across a specified frequency range.
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