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POThe difference between DataLine and (Output|Input)Stream?
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copied!<p>I am working on sound processing with the use of Java now. Within my project, I have to deal with the stream. So I have a lot of staffs to do with <code>DataLine</code> and <code>OutputStream</code> or <code>InputStream</code>. But to me, they are too similar:(</p> <p>Is there someone who can help me with this question? Thanks in advance! Here are some code I used ：</p> <pre><code> TargetDataLine line; ByteArrayOutputStream out = new ByteArrayOutputStream(); int frameSizeInBytes = format.getFrameSize(); int bufferLengthInFrames = line.getBufferSize() / 8; int bufferLengthInBytes = bufferLengthInFrames * frameSizeInBytes; byte[] data = new byte[bufferLengthInBytes]; int numBytesRead; try { line = (TargetDataLine) AudioSystem.getLine(info); line.open(format, line.getBufferSize()); } catch (LineUnavailableException ex) { shutDown("Unable to open the line: " + ex); return; } catch (SecurityException ex) { shutDown(ex.toString()); return; } catch (Exception ex) { shutDown(ex.toString()); return; } line.start(); while (thread != null) { if ((numBytesRead = line.read(data, 0, bufferLengthInBytes)) == -1) { break; } out.write(data, 0, numBytesRead); } </code></pre> <p>I have read the documentation of the class <strong>TargetDataLine</strong>, it is said :"'read(byte[] b, int off, int len)' Reads audio data from the data line's input buffer." </p> <p>But where do we define it?</p> <p><em><strong>Also the line of type TargetDataLine has not been attached to any mixer, so how can we know for which mixer it is for???</em></strong></p>

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