Java音频wav转换为pcm

╰+攻爆jí腚メ 2022-05-13 17:51 368阅读 0赞

package cn.xuan.test;
    
    import org.apache.commons.io.IOUtils;
    
    import java.io.ByteArrayOutputStream;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.util.Arrays;
    
    
    
    
    /**
     * FileName: WavToPcm
     * Author:   xuan zongjun
     * Date:     2018/10/22 17:30
     * Description:
     */
    
    
    public class WavToPcm {
    
        /**
         * WAV转PCM文件
         * @param wavfilepath wav文件路径
         * @param pcmfilepath pcm要保存的文件路径及文件名
         * @return
         */
        public static String convertAudioFiles(String wavfilepath,String pcmfilepath){
            FileInputStream fileInputStream;
            FileOutputStream fileOutputStream;
            try {
                fileInputStream = new FileInputStream(wavfilepath);
                fileOutputStream = new FileOutputStream(pcmfilepath);
                byte[] wavbyte = InputStreamToByte(fileInputStream);
                byte[] pcmbyte = Arrays.copyOfRange(wavbyte, 44, wavbyte.length);
                fileOutputStream.write(pcmbyte);
                IOUtils.closeQuietly(fileInputStream);
                IOUtils.closeQuietly(fileOutputStream);
            } catch (Exception e) {
                System.out.println(e.getMessage());
            }
            return pcmfilepath;
        }
        /**
         * 输入流转byte二进制数据
         * @param fis
         * @return
         * @throws IOException
         */
        private static byte[] InputStreamToByte(FileInputStream fis) throws IOException {
            ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
            long size = fis.getChannel().size();
            byte[] buffer = null;
            if (size <= Integer.MAX_VALUE) {
                buffer = new byte[(int) size];
            } else {
                buffer = new byte[8];
                for (int ix = 0; ix < 8; ++ix) {
                    int offset = 64 - (ix + 1) * 8;
                    buffer[ix] = (byte) ((size >> offset) & 0xff);
                }
            }
            int len;
            while ((len = fis.read(buffer)) != -1) {
                byteStream.write(buffer, 0, len);
            }
            byte[] data = byteStream.toByteArray();
            IOUtils.closeQuietly(byteStream);
            return data;
        }
    
        public static void main(String[] args) {
            String wavFilePath="F:\\工作文档\\惟乐对接\\pcmpcmpcm(1).wav";
            String pcmFilePath="F:\\工作文档\\惟乐对接\\pcmpcmpcm(1).pcm";
            convertAudioFiles(wavFilePath,pcmFilePath);
            System.out.println("OK");
        }
    
    
    }

需要的jar包：commons-io-2.6-bin.zip