Bytes array into a wav file
hi every1, any1 can help plz, how to write bytes from an audio file (which is stored in an array) back into a wave file thanx
Hi,
it is something like this:
byte[] myByteArray; //your bytearray
AudioFormat myAudioFormat; //neccessary to interpret the bytes in the right manner
long mySampleFrameLength; //how long your audiodata is
AudioInputStream ais = new AudioInputStream(new ByteArrayInputStream(myByteArray), myAudioFormat, mySampleFrameLength);
AudioSystem.write(ais, AudioFileFormat.Type.WAVE, new File("myWaveFile.wav"));
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Indeed there is!
Look at the attached vi....that's about all there is to it!
Good Luck..
Eric
Eric P. Nichols
P.O. Box 56235
North Pole, AK 99705
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Attachments:
heart sound analyzer.zip 257 KBHi Brett Burger,
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Title:
Moving Data Between MATLAB® and LabVIEW
Problem:
How can I share data between LabVIEW and the MATLAB environment?
Solution:
MATLAB users can move data between the
MATLAB environment and LabVIEW, you have several options. Prior to
LabVIEW 5.1, the only way to transfer data between these two
environments was to use the Save and Load functions. Those are discussed herein.
Beginning
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Beginning
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the MATLAB software from within LabVIEW. This requires that both MATLAB
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From the MATLAB environment to LabVIEW
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Because
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The Who
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MATLAB® is a
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| Michael K | Project Manager | LabVIEW R&D | National Instruments | -
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File file = new File(filename);
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ds.connect();
try
player = Manager.createPlayer(ds);
catch (NoPlayerException e)
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desktop.add(jmframe);
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import javax.media.Time;
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protected Time duration = DURATION_UNKNOWN;
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this.data = data;
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System.err.println("Error: DataSource not connected");
return null;
return contentType;
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if (connected)
return;
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streams = new MyPullBufferStream[1];
streams[0] = this.stream;
connected = true;
public void disconnect()
try
if (started)
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connected = false;
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Object cs[] = getControls();
for (int i = 0; i < cs.length; i++)
if (cls.isInstance(cs))
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return null;
catch (Exception e)
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if (streams == null)
streams = new MyPullBufferStream[1];
stream = streams[0] = new MyPullBufferStream(data);
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import java.io.IOException;
import javax.media.Buffer;
import javax.media.Control;
import javax.media.Format;
import javax.media.format.AudioFormat;
import javax.media.protocol.ContentDescriptor;
import javax.media.protocol.PullBufferStream;
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private final byte[] data;
private final ByteArrayInputStream bais;
protected Control[] controls = new Control[0];
public MyPullBufferStream(final byte[] data)
this.data = data;
bais = new ByteArrayInputStream(data);
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Object outdata = buffer.getData();
if (outdata == null || !(outdata.getClass() == Format.byteArray)
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buffer.setData(outdata);
byte[] data = (byte[])buffer.getData();
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buffer.setData(data);
buffer.setFormat(audioFormat);
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buffer.setHeader(null);
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if (outdata == null || !(outdata.getClass() == Format.byteArray)
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outdata = new byte[BLOCK_SIZE];
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buffer.setData(this.data);
seqNo++;
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any idea, any hint any help is welcomed..
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file = FileReference(fileListArr[value]);;
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file.removeEventListener(Event.COMPLETE, loadImage);
myCounter += 1;
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b64En.encodeBytes(fileByteArr);
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imageData = new ImageData();
imageData.Base64EncodedImage = str;
imageData.FileName = event.target.name;
trace("sending -->> " + imageData.FileName);
updateStatus("Sending to server");
imageService.addEventListener(ResultEvent.RESULT, imgServSuccess);
imageService.UploadImage(imageData);
b64En.reset();
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public function imgServSuccess(event:ResultEvent):void{
trace("imgServSuccess -->");
imageService.removeEventListener(ResultEvent.RESULT, imgServSuccess);
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var returnedData:Object = event.result.Images;
var imgD:ImageData = new ImageData();
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trace(returnMsg.ErrorMessages.getItemAt(0).toString());
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decoded.decode(imgData.Base64EncodedImage);
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win["save"].addEventListener("click", popupClosed);
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numSize = numSize / 1024;
strReturn = String(numSize.toFixed(1) + " MB");
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numSize = numSize / 1024;
strReturn = String(numSize.toFixed(1) + " GB");
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fileNames.removeItemAt(j);
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fileNames[j].num = idx++;
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displayFilesList.selectedIndex = 0;
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displayFilesList.selectedIndex = -1;
_numCurrentUpload--;
updateProgBar();
private function updateStatus(status:String, index:Number = -1):void{
index = _numCurrentUpload;
fileNames[index].status = status;
displayFilesList.invalidateList();
public function fileProgress(event:ProgressEvent):void{
//trace("fileProgress -->");
var numPerc:Number = Math.round((Number(event.bytesLoaded) / Number(event.bytesTotal)) * 100);
updateStatus("Uploading: " + numPerc.toString() + "%");
updateProgBar(numPerc);
var evt:ProgressEvent = new ProgressEvent("uploadProgress", false, false, event.bytesLoaded, event.bytesTotal);
dispatchEvent(evt);
public function updateProgBar(numPerc:Number = 0):void{
//trace("updateProgBar -->");
var strLabel:String = (_numCurrentUpload + 1) + "/" + fileNames.length;
progBar.label = strLabel;
progBar.setProgress(_numCurrentUpload + numPerc / 100, fileNames.length);
progBar.validateNow(); -
Reading in any file and converting to a byte array
Okay what I am trying to do is to write a program that will read in any file and convert it into a int array so that I can then manipulate the values of the int array and then re-write the file. Once I get the file into an int array I want to try and compress the data with my own algorithm as well as try to write my own encryption algorithm.
What I have been looking for is code samples that essentially read in the file as a byte array and then I have been trying to convert that byte array into an int array which I could then manipulate. So does anyone have any sample code that essentially takes a file and converts it into an int array and then converts it back into a byte array and write the file. I have found code that is close but I guess I am just too new to this. Any help would be appreciated.You can read a whole file into a byte array like this:File f = new File("somefile");
int size = (int) f.length();
byte[] contents = new byte[size];
DataInputStream in = new DataInputStream(
new BufferedInputStream(new FileInputStream(f)));
in.readFully(contents);
in.close();Note that you need to add in the proper exception handling code. You could also use RandomAccessFile instead of the DataInputStream.
Writing a byte array to a file is easier; just construct the FileOutputStream, call write on it with the byte array, and close the stream.
Maybe you are looking for
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