Simple Sound Recording - Help needed

Question

Hi there
Im wondering if this is possible and if so , does anbody know offhand where I can find a basic implementation of this typea thing...
I simply need to be able to read in a wav file, then record it and give it a different name. I am just trying to get this basic functionality sorted, because I will be progressing on to reading in a file, runninig some DSP algorithm on it, and then needing to save it back out, so I elieve that I need to write it in chunks much the same as the SourceDataLine buffers the sound...err am i making sense?
I have been trying to do this with TargetDataLine, and its just getting the better of me at the moment, I am able to read in the file and play it as normal, its just the recording it to an output file where I am failing.
thanks a million
conaill

Answer 1

Do I get you right that you want to read a sound file into memory and then store it back to the hard disk? If this is the case, try this:
int frameSizeInBytes;
int bufferLengthInFrames = 32;
int bufferLengthInBytes;
byte[] data;
int numBytesRead;
BufferedReader mIn;
AudioFormat format;
ByteArrayInputStream bIn;
AudioInputStream outStream;
File o;
int soundLength;
soundLength = 1000;
f = new File("infile.wav");
inStream = AudioSystem.getAudioInputStream(f);
format = inStream.getFormat();
frameSizeInBytes = format.getFrameSize();
bufferLengthInBytes = bufferLengthInFrames * frameSizeInBytes;
data = new byte[soundLength];
o = new File("outfile.wav");
// read the sound data
numBytesRead = inStream.read(data, 0, soundLength);
inStream.close();
// now write it back
bIn = new ByteArrayInputStream(data);
outStream = new AudioInputStream(bIn, format, soundLength);
AudioSystem.write(outStream, AudioFileFormat.Type.WAVE, o);This reads only a portion of a file, you'll have to modifiy it.
Hope this helps,
S