java 음성 파일에서의 pitch 추출 방법

'TarsosDSP' 라이브러리 사용.

 

build.gradle에 추가

repositories {
	mavenCentral()

	maven {
		name = "TarsosDSP repository"
		url = "https://mvn.0110.be/releases"
	}
}

dependencies {
	/*오디오 pitch 추출 라이브러리*/
	implementation 'be.tarsos.dsp:core:2.5'
	implementation 'be.tarsos.dsp:jvm:2.5'
}

java 적용 예제 코드

import be.tarsos.dsp.AudioDispatcher;
import be.tarsos.dsp.AudioEvent;
import be.tarsos.dsp.io.jvm.JVMAudioInputStream;
import be.tarsos.dsp.pitch.PitchDetectionHandler;
import be.tarsos.dsp.pitch.PitchDetectionResult;
import be.tarsos.dsp.pitch.PitchProcessor;
import org.springframework.stereotype.Service;

import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.UnsupportedAudioFileException;
import java.io.File;
import java.io.IOException;

...

    public void export() {

        String audioFilePath = "C:\\Users\\mindslab\\Desktop\\sample\\음성\\examples_src_main_resources_happy.wav";

        try {
            AudioInputStream audioStream = AudioSystem.getAudioInputStream(new File(audioFilePath));
            JVMAudioInputStream jvmAudioStream = new JVMAudioInputStream(audioStream);

            AudioDispatcher dispatcher = new AudioDispatcher(jvmAudioStream, 1024, 0);

            PitchDetectionHandler pitchHandler = new PitchDetectionHandler() {
                @Override
                public void handlePitch(PitchDetectionResult pitchDetectionResult, AudioEvent audioEvent) {
                    float pitchInHz = pitchDetectionResult.getPitch();
                    System.out.println(audioEvent.getTimeStamp() + ": Detected pitch: " + pitchInHz + " Hz");
                }
            };

            PitchProcessor pitchProcessor = new PitchProcessor(PitchProcessor.PitchEstimationAlgorithm.YIN, 44100, 1024, pitchHandler);
            dispatcher.addAudioProcessor(pitchProcessor);

            dispatcher.run();

        } catch (UnsupportedAudioFileException e) {
            e.printStackTrace();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

    }