java 音频转换wav格式标准音频的操作

        <dependency>
            <groupId>org.bytedeco</groupId>
            <artifactId>javacv-platfORM</artifactId>
            <version>1.5.5</version>
        </dependency>

import lombok.extern.slf4j.Slf4j;
import org.bytedeco.javacpp.Loader;
 
import java.io.IOException;
import java.util.Optional;
 

@Slf4j
public class AudioTransforWavUtils {
  
  public static String transforAudio(String localPath, String fileName) throws Exception {
    // 这个本地转换路径可以自己调整
    String transforPath = "D:" + "/" + fileName + ".wav";
    Optional<String> transPath = Optional.empty();
    try {
      transPath = transforWavStandard(localPath, transforPath);
    } catch (Exception exception) {
      exception.printStackTrace();
    }
    if (transPath.isPresent()) {
      return transPath.get();
    } else {
      throw new Exception("音频转换失败失败");
    }
  }
 
  
  public static Optional<String> transforWavStandard(String oldFilePath, String newFilePath) {
    // 获取本地ffmpeg执行器
    String ffmpeg = Loader.load(org.bytedeco.ffmpeg.ffmpeg.class);
    // 生成转换命令管道
    ProcessBuilder transforBuilder =
        new ProcessBuilder(
            ffmpeg, "-i", oldFilePath, "-f", "wav", "-ar", "16000", "-ac", "1", "-y", newFilePath);
    try {
      // inheritIO是指将 子流程的IO与当前java流程的IO设置为相同
      transforBuilder.inheritIO().start().waitFor();
    } catch (InterruptedException | IOException e) {
      log.error("ffmpeg转换wav为标准格式异常", e);
      return Optional.empty();
    }
    // 返回pcm文件路径
    return Optional.of(newFilePath);
  }
 
  public static void main(String[] args) throws Exception {
    transforAudio("C:\\Users\\huyi\\Desktop\\测试.mp3", "new");
  }
}