Audio data processing apparatus, terminal, and method of audio data processing

摘要

According to an aspect of the invention, there is provided an audio data processing apparatus including: a decoding unit configured to extract an encoding parameter from encoded audio data by decoding the encoded audio data; an acquisition unit configured to acquire a background noise signal; a correction gain calculating unit configured to calculate a correction gain for correcting frequency characteristics of the audio data by using the encoding parameter and the background noise signal; and a frequency characteristics correcting unit configured to correct the frequency characteristics of the audio data based on the correction gain.