SOUND QUALITY CORRECTION APPARATUS, SOUND QUALITY CORRECTION METHOD AND SOUND QUALITY CORRECTION PROGRAM
First Claim
1. A sound quality correction apparatus comprising:
- a feature parameter calculator configured to calculate various feature parameters to identify a speech signal and a music signal from an input audio signal;
a speech/music identification score calculator configured to calculate a speech/music identification score indicating to which of the speech signal or the music signal the input audio signal is close to, based on the various feature parameters calculated by the feature parameter calculator;
a plurality of sound quality correctors configured to execute different types of the sound quality correction process on the input audio signal; and
a controller configured to control the correction strength of each of said plurality of the sound quality correctors based on the speech/music identification score calculated by the speech/music identification score calculator.
1 Assignment
0 Petitions
Accused Products
Abstract
According to one embodiment, a sound quality correction apparatus calculates various feature parameters for identifying the speech signal and the music signal from an input audio signal and, based on the various feature parameters thus calculated, also calculates a speech/music identification score indicating to which of the speech signal and the music signal the input audio signal is close to. Then, based on this speech/music identification score, the correction strength of each of plural sound quality correctors is controlled to execute different types of the sound quality correction processes on the input audio signal.
-
Citations
9 Claims
-
1. A sound quality correction apparatus comprising:
-
a feature parameter calculator configured to calculate various feature parameters to identify a speech signal and a music signal from an input audio signal; a speech/music identification score calculator configured to calculate a speech/music identification score indicating to which of the speech signal or the music signal the input audio signal is close to, based on the various feature parameters calculated by the feature parameter calculator; a plurality of sound quality correctors configured to execute different types of the sound quality correction process on the input audio signal; and a controller configured to control the correction strength of each of said plurality of the sound quality correctors based on the speech/music identification score calculated by the speech/music identification score calculator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A sound quality correction method comprising:
-
calculating various feature parameters to identify a speech signal and a music signal from an input audio signal; calculating a speech/music identification score indicating to which of the speech signal or the music signal the input audio signal is close to, based on the various feature parameters calculated; and controlling the correction strength of each of a plurality of sound quality correctors to execute different types of sound quality correction processes on the input audio signal based on the speech/music identification score calculated.
-
-
9. A sound quality correction program which causes a computer to execute:
-
a process of calculating various types of feature parameters to identify a speech signal and a music signal from an input audio signal; a process of calculating a speech/music identification score indicating to which of the speech signal or the music signal the input audio signal is close to, based on the various types of the feature parameters calculated; and a process of controlling the correction strength of each of a plurality of sound quality correctors to execute different types of sound quality correction processes on the input audio signal, based on the music/speech identification score calculated.
-
Specification