Java轻松使用工具类实现获取wav时间长度代码示例

作者：袖梨 2022-06-29

本篇文章小编给大家分享一下Java轻松使用工具类实现获取wav时间长度代码示例，文章代码介绍的很详细，小编觉得挺不错的，现在分享给大家供大家参考，有需要的小伙伴们可以来看看。

获取wav格式音频时长。

Maven依赖

        
            org
            jaudiotagger
            2.0.1

工具类

import org.jaudiotagger.audio.wav.util.WavInfoReader;
 
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
 
/** @Author huyi @Date 2021/9/30 14:46 @Description: 音频工具类 */
public class AudioWavUtils {
 
  public static void getWavInfo(String filePath) throws Exception {
    File file = new File(filePath);
    WavInfoReader wavInfoReader = new WavInfoReader();
    RandomAccessFile raf = new RandomAccessFile(file, "r");
    // wav音频时长
    long duration = (long) (wavInfoReader.read(raf).getPreciseLength() * 1000);
    // wav音频采样率
    int sampleRate = toInt(read(raf, 24, 4));
    System.out.println("duration -> " + duration + ",sampleRate -> " + sampleRate);
    raf.close();
  }
 
  public static int toInt(byte[] b) {
    return ((b[3] << 24) + (b[2] << 16) + (b[1] << 8) + (b[0]));
  }
 
  public static byte[] read(RandomAccessFile rdf, int pos, int length) throws IOException {
    rdf.seek(pos);
    byte[] result = new byte[length];
    for (int i = 0; i < length; i++) {
      result[i] = rdf.readByte();
    }
    return result;
  }
 
  public static void main(String[] args) throws Exception {
    getWavInfo("E:csdndzgz.wav");
  }
}

输出结果：