Abstract:
Provided is a method of reconstructing an audio signal, the method including detecting a lossy frequency band, based on an energy value of each of frequencies of the audio signal; obtaining a cut-off frequency, based on the lossy frequency band; and reconstructing the audio signal of the lossy frequency band, based on the cut-off frequency.
Abstract:
A three-dimensional sound reproducing method includes: acquiring a multichannel audio signal; rendering signals to a channel to be reproduced according to channel information and a frequency of the multichannel audio signal; and mixing the rendered signals.
Abstract:
An audio correction apparatus and an audio correction method. The audio correction method includes: receiving audio data, which may be input by a user and/or an instrument uttering sounds; detecting onset information by analyzing harmonic components of the received audio data; detecting pitch information of the received audio data based on the detected onset information; comparing the audio data with reference audio data and aligning the two based on the detected onset information and the detected pitch information; and correcting the aligned audio data to match the reference audio data.