Signal processing method and apparatus for amplifying speech signals

摘要

A signal processing method is provided. The signal processing method includes extracting a first signal having a first frequency band from a sum signal of a left signal and a right signal, generating a second signal having a second frequency band by using the first signal, generating a third signal by using the first signal and the second signal, and applying a gain, generated by using a rate of a center signal included in the sum signal, to the third signal.

主权项

1. A signal processing method of a signal processing apparatus, the method comprising:
extracting, by a first signal extractor, a first signal having a first frequency band from an audio signal including a speech signal; generating, by an extension signal generator, a second signal having a second frequency band by using the first signal, the second frequency band not overlapping with the first frequency band; generating a third signal by adding the first signal and the second signal; and applying a gain, generated by using a ratio of the speech signal included in the audio signal, to the third signal, wherein the first signal extractor is implemented as hardware.