Method for determining audio equalization function, audio equalization method and device

Abstract

The invention provides an audio equalization function determination method, and an audio equalization method and apparatus. The audio function determination method includes steps: obtaining at least apair of source audio signals and in-ear-canal audio signals; analyzing a function relation between the at least one pair of source audio signals and the in-ear-canal audio signals, and obtaining a first transfer function of an audio playing device; processing the first transfer function by employing a preset first frequency response function, and obtaining a second transfer function, wherein thefirst frequency response function is obtained by modeling of a basilar membrane characteristic; and processing the second transfer function by employing a preset second frequency response function, and obtaining an equalization function for equalization processing of audio signals played by the audio playing device, wherein the second frequency response function is an expected transfer function ofthe audio playing device. Further, the audio playing device can perform equalization processing on audios according to the audio equalization method determined according to the above method.

Description

technical field [0001] The present application relates to the technical field of audio playback, and in particular to a method for determining an audio equalization function, an audio equalization method and equipment. Background technique [0002] At present, the playback process of digital audio can be as follows figure 1 As shown, the audio playback device performs digital signal processing on the acquired digital audio signal, and then uses a digital-to-analog converter (DAC) to convert the processed digital audio signal into an analog audio signal, and simulates the analog audio signal through a hardware circuit. Signal processing and finally playback through speakers. [0003] Wherein, the process of digital signal processing includes equalizing the digital audio signal. The purpose of audio equalization is to enhance or weaken the components in certain frequency bands of the audio signal, so as to make the audio signal more pleasant or close to people's listening ha...

AI Technical Summary

Problems solved by technology

However, the current audio playback devices generally have problems of low stability and poor robustness when equalizing audio, which affects the quality of audio playback.

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