Article of manufacture, system and computer-readable storage medium for processing audio signals

摘要

Embodiments of an article of manufacture, a system for processing audio signals and a computer-readable storage medium containing program instructions for processing audio signals are described. In one embodiment, an article of manufacture comprising at least one non-transitory, tangible machine readable storage medium containing executable machine instructions for processing audio signals, where execution of the executable machine instructions by a processing device causes the processing device to perform steps, which include estimating a spectral difference between a first audio signal and a second audio signal that carry the same audio content, transforming the second audio signal based on the spectral difference and generating an output audio signal based on the transformed second audio signal. Other embodiments are also described.

主权项

1. An article of manufacture comprising at least one non-transitory, tangible machine readable storage medium containing executable machine instructions for processing audio signals, wherein execution of the executable machine instructions by a processing device causes the processing device to perform steps, which comprise:
estimating a spectral difference between a first audio signal and a second audio signal, wherein the first and second audio signals carry the same audio content; transforming the second audio signal based on the spectral difference in response to a degrade in quality of the first audio signal; and generating an output audio signal based on the transformed second audio signal, wherein estimating the spectral difference between the first audio signal and the second audio signal comprises; measuring the magnitude of the first audio signal in a frequency range and the magnitude of the second audio signal in the frequency range; and calculating a power ratio between the magnitude of the first audio signal and the magnitude of the second audio signal.