Java使用TarsosDSP库实现音频的处理和格式转换

<dependency>
    <groupId>be.tarsos.dsp</groupId>
    <artifactId>TarsosDSP</artifactId>
    <version>2.4</version>
</dependency>

import be.tarsos.dsp.io.jvm.WavFileReader;
import be.tarsos.dsp.io.TarsosDSPAudioFormat;
import be.tarsos.dsp.io.jvm.AudioPlayer;
import be.tarsos.dsp.io.jvm.LameMP3FileWriter;
import java.io.File;
 
public class AudioConverter {
    public static void main(String[] args) {
        File inputFile = new File("input.wav");
        File outputFile = new File("output.mp3");
        
        try {
            // 读取WAV文件
            WavFileReader reader = new WavFileReader(inputFile);
            
            // 使用LAME编码器转换为MP3
            LameMP3FileWriter mp3Writer = new LameMP3FileWriter(outputFile, reader.getFormat(), 128);
            AudioPlayer player = new AudioPlayer(reader);
            
            // 启动音频转换过程
            player.start();
            mp3Writer.write(reader);
            
            System.out.println("音频已转换为MP3格式： " + outputFile.getPath());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import be.tarsos.dsp.AudioEvent;
import be.tarsos.dsp.io.jvm.WavFileReader;
import be.tarsos.dsp.effects.ReverbEffect;
import be.tarsos.dsp.io.jvm.AudioPlayer;
 
public class AudioEffectExample {
    public static void main(String[] args) {
        try {
            File inputFile = new File("input.wav");
            WavFileReader reader = new WavFileReader(inputFile);
            
            // 创建回响效果处理器
            ReverbEffect reverb = new ReverbEffect(0.5f, 0.8f); // 设置回响强度和混合比例
            
            // 创建音频播放器
            AudioPlayer player = new AudioPlayer(reader);
            
            // 在音频播放器中添加回响效果
            player.addAudioProcessor(reverb);
            
            // 启动音频播放
            player.start();
            System.out.println("回响效果已应用并播放");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import be.tarsos.dsp.AudioEvent;
import be.tarsos.dsp.io.jvm.WavFileReader;
import be.tarsos.dsp.features.MFCC;
import be.tarsos.dsp.io.jvm.AudioPlayer;
 
public class MFCCExample {
    public static void main(String[] args) {
        try {
            File inputFile = new File("input.wav");
            WavFileReader reader = new WavFileReader(inputFile);
            
            // 创建MFCC特征提取器
            MFCC mfcc = new MFCC();
            
            // 创建音频播放器
            AudioPlayer player = new AudioPlayer(reader);
            
            // 提取MFCC特征
            while (reader.hasNext()) {
                AudioEvent event = reader.read();
                mfcc.process(event);
                System.out.println("MFCC特征: " + mfcc.getMFCC());
            }
            System.out.println("MFCC特征提取完成");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import be.tarsos.dsp.AudioEvent;
import be.tarsos.dsp.io.jvm.WavFileReader;
import be.tarsos.dsp.util.FFT;
import be.tarsos.dsp.io.jvm.AudioPlayer;
 
public class SpectrumAnalysisExample {
    public static void main(String[] args) {
        try {
            File inputFile = new File("input.wav");
            WavFileReader reader = new WavFileReader(inputFile);
            
            // 创建FFT对象进行频谱分析
            FFT fft = new FFT(2048);
            
            // 创建音频播放器
            AudioPlayer player = new AudioPlayer(reader);
            
            // 进行频谱分析
            while (reader.hasNext()) {
                AudioEvent event = reader.read();
                fft.forwardTransform(event.getFloatBuffer());
                System.out.println("频谱数据: " + fft.getSpectrum()[0]);
            }
            System.out.println("频谱分析完成");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}