问题
I've a problem in converting byte to .mp3 sound file. In my case I do it using FileOutputStream using its write(bytes) method but it just creates a data file with mp3 extension but I cannot play it in any player on my PC.
Note: I'm recording it from Flex Michrophone and send ByteArray to java.
Which libraries should I use to add mp3 sound file headers etc. in java?
UPDATE: I couldn't even convert my raw data to Wave format that is supported by java sound api.. It creates for me sound with recorded sound but with a noise - where's the problem?
Here's my code for wave:
AudioFormat format = new AudioFormat(Encoding.PCM_SIGNED, 44100, 16, 2, 2, 44100, true);
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
AudioInputStream stream = new AudioInputStream(bais, format, bytes.length/format.getFrameSize());
AudioSystem.write(stream, AudioFileFormat.Type.WAVE, new File(path+"zzz.wav"));
What's wrong with my AudioFormat??? And which one do I have to use in MP3 case ?!
Urgent help! Any help will be highly appreciated!
回答1:
Just writing the raw bytes to a file with the name extension .mp3 doesn't magically convert the data to the MP3 format. You need to use an encoder to compress it.
A quick google search found LAMEOnJ which is a Java API for the popular LAME MP3 encoder.
来源：https://stackoverflow.com/questions/12424659/flex-java-byte-to-mp3