获取wav格式音频时长。
Maven依赖
<dependency> <groupId>org</groupId> <artifactId>jaudiotagger</artifactId> <version>2.0.1</version> </dependency>
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:\\csdn\\dzgz.wav"); } }
输出结果:
duration为音频时长,单位毫秒,sampleRate为采样率。
说明
该工具类只能处理单声道音频,双声道会报错,多声道属于立体声范畴,提醒一下。
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原文链接:https://huyi-aliang.blog.csdn.net/article/details/120566710