SPECTRAL SHAPING FOR AUDIO MIXING

摘要

Techniques are described herein that are capable of spectrally shaping audio signal(s) for audio mixing. Spectrally shaping an audio signal means modifying a frequency spectrum of the audio signal. A frequency spectrum of an audio signal is a representation of the audio signal in the frequency domain. For instance, a frequency spectrum may be represented using multiple frequency bands. The frequency spectrum may be modified by modifying characteristic(s) (e.g., magnitude, phase, etc.) one or more of the frequency bands.

主权项

1. A system comprising:
an analyzer configured to analyze a first frequency spectrum of a first audio signal to determine a first portion of the first frequency spectrum that has a magnitude that is lower than magnitudes of other portions of the first frequency spectrum; a modification module configured to modify the first frequency spectrum to decrease the magnitude of the first portion of the first frequency spectrum with respect to the other portions of the first frequency spectrum in response to the magnitude of the first portion of the first frequency spectrum being lower than the magnitudes of the other portions of the first frequency spectrum, the modification module further configured to modify a second frequency spectrum of a second audio signal to increase a magnitude of a first portion of the second frequency spectrum with respect to other portions of the second frequency spectrum in response to the magnitude of the first portion of the first frequency spectrum being lower than the magnitudes of the other portions of the first frequency spectrum, the first portion of the first frequency spectrum and the first portion of the second frequency spectrum corresponding to a common set of frequencies; and a mixer configured to mix the first audio signal and the second audio signal to provide a mixed audio signal.