How to write FLAC files in java

问题:

I have a requirement to write FLAC files in java. Earlier I was writing the audio input into a WAV file and then converting it to FLAC file using a external converter

I was looking into JFlac to find any API through which I can write FLAC files. I found that AudioFileFormat.TYPE in java supports only the following file formats - AIFC, AIFF, SND, AU, WAVE .

I would like to have a method where I can capture the audio from the microphone and, using an API such as Audiosystem.write, write it to a FLAC file instead of WAV file.

Please suggest a method or an API that can solve my problem.

回答1:

You can use this lib. Here is a simple example using version 0.2.3 (javaFlacEncoder-0.2.3-all.tar.gz). Extract the dowloaded file, and then import javaFlacEncoder-0.2.3.jar to your project. For more documentation, see here:

package fr.telecomParisTech; import java.io.File; import javaFlacEncoder.FLAC_FileEncoder; public class SoundConverter {     /**      * @param args      */     public static void main(String[] args) {         // TODO Auto-generated method stub         FLAC_FileEncoder flacEncoder = new FLAC_FileEncoder();         File inputFile = new File("hello.wav");         File outputFile = new File("hello.flac");          flacEncoder.encode(inputFile, outputFile);         System.out.println("Done");     } } 

回答2:

You can write audio stream directly to a FLAC file with javaflacencoder:

AudioSystem.write(audioInputStream, FLACFileWriter.FLAC, new File("E:\\temp.flac")); 

回答3:

If you want to change sample rates, use ffmpeg like this ffmpeg -i sourcefile.wav -ar 16000 targetfile.flac

文章来源: How to write FLAC files in java