*bump*
On Apr 9, 9:43 am, Anil <[EMAIL PROTECTED]> wrote:
> I am trying to figure out how to play a JSpeex encoded audio file on
> android but am stuck.
>
> Speex or JSpeex (the Java implementation) is royalty free and is well
> suited to voice applications. It provides as much compression as mp3.
> Apparently it will be implemented in
> android:http://code.google.com/p/android/issues/detail?id=354&can=4&colspec=I...
>
> the project page is
> herehttp://sourceforge.net/project/showfiles.php?group_id=84548
>
> I am trying to figure out how to fit it into the android calls
>
> MediaPlayer mp = new android.media.MediaPlayer();
> mp.setDataSource("/data/data/com.jo.blockpad/files/jo-russkelly_files/
> 2-0.spx");
> mp.prepare();
> mp.start();
>
> Any help appreciated.
> thanks,
> Anil
>
> -------------------------------------------------
> calling it from Java Sound example
> --------------------------------------------------
>
> import java.io.IOException;
> import java.net.URL;
> import java.util.Observable;
> import java.util.Observer;
>
> import javax.sound.sampled.AudioFormat;
> import javax.sound.sampled.AudioInputStream;
> import javax.sound.sampled.AudioSystem;
> import javax.sound.sampled.DataLine;
> import javax.sound.sampled.LineEvent;
> import javax.sound.sampled.LineListener;
> import javax.sound.sampled.LineUnavailableException;
> import javax.sound.sampled.Mixer;
> import javax.sound.sampled.SourceDataLine;
> import javax.swing.JOptionPane;
>
> /**
> * Audio playing code has been adapted from Matthias Pfisterer's
> * AudioPlayer.java
> *
> * Anil
> */
>
> private MyObservable observable = new MyObservable();
>
> private static int DEFAULT_EXTERNAL_BUFFER_SIZE = 128000;
>
> int nExternalBufferSize = DEFAULT_EXTERNAL_BUFFER_SIZE;
>
> int nInternalBufferSize = AudioSystem.NOT_SPECIFIED;
>
> boolean bForceConversion = false;
>
> private static boolean DEBUG = false;
>
> SourceDataLine line = null;
>
> private Object snippet = null;
>
> public void playClip(String urlStr) throws Exception {
> // important - otherwise skim() will fail to move to the next
> node
> this.snippet = snippetRef;
>
> /**
> * Flag for forcing a conversion. If set to true, a
> conversion of
> the
> * AudioInputStream (AudioSystem.getAudioInputStream(...,
> * AudioInputStream)) is done even if the format of the
> original
> * AudioInputStream would be supported for SourceDataLines
> directly.
> * This flag is set by the command line options "-E" and "-S".
> */
> boolean bForceConversion = false;
>
> /**
> * Endianess value to use in conversion. If a conversion of
> the
> * AudioInputStream is done, this values is used as endianess
> in the
> * target AudioFormat. The default value can be altered by the
> command
> * line option "-B".
> */
> boolean bBigEndian = false;
>
> /**
> * Sample size value to use in conversion. If a conversion of
> the
> * AudioInputStream is done, this values is used as sample
> size in
> the
> * target AudioFormat. The default value can be altered by the
> command
> * line option "-S".
> */
> int nSampleSizeInBits = 16;
>
> String strMixerName = null;
>
> int nExternalBufferSize = DEFAULT_EXTERNAL_BUFFER_SIZE;
>
> int nInternalBufferSize = AudioSystem.NOT_SPECIFIED;
>
> AudioInputStream audioInputStream = null;
> URL url = new URL(urlStr);
> audioInputStream = AudioSystem.getAudioInputStream(url);
> if (DEBUG)
> out("AudioPlayer.main(): primary AIS: " +
> audioInputStream);
>
> /*
> * From the AudioInputStream, i.e. from the sound file, we
> fetch
> * information about the format of the audio data. These
> information
> * include the sampling frequency, the number of linkSnippets
> and
> the
> * size of the samples. These information are needed to ask
> Java
> Sound
> * for a suitable output line for this audio stream.
> */
> AudioFormat audioFormat = audioInputStream.getFormat();
> if (DEBUG)
> out("AudioPlayer.main(): primary format: " +
> audioFormat);
> DataLine.Info info = new DataLine.Info(SourceDataLine.class,
> audioFormat,
> nInternalBufferSize);
> boolean bIsSupportedDirectly =
> AudioSystem.isLineSupported(info);
> if (!bIsSupportedDirectly || bForceConversion) {
> AudioFormat sourceFormat = audioFormat;
> AudioFormat targetFormat = new
> AudioFormat(AudioFormat.Encoding.PCM_SIGNED,
> sourceFormat.getSampleRate(),
> nSampleSizeInBits, sourceFormat
> .getChannels(),
> sourceFormat.getChannels()
> * (nSampleSizeInBits
> / 8), sourceFormat.getSampleRate(),
> bBigEndian);
> if (DEBUG) {
> out("AudioPlayer.main(): source format: " +
> sourceFormat);
> out("AudioPlayer.main(): target format: " +
> targetFormat);
> }
> audioInputStream =
> AudioSystem.getAudioInputStream(targetFormat,
> audioInputStream);
> audioFormat = audioInputStream.getFormat();
> if (DEBUG)
> out("AudioPlayer.main(): converted AIS: " +
> audioInputStream);
> if (DEBUG)
> out("AudioPlayer.main(): converted format: "
> + audioFormat);
> }
>
> line = getSourceDataLine(strMixerName, audioFormat,
> nInternalBufferSize);
> if (line == null) {
> out("AudioPlayer: cannot get SourceDataLine for
> format " +
> audioFormat);
> JOptionPane.showMessageDialog(null,
> "AudioPlayer: cannot get
> SourceDataLine for format", "Cannot
> play",
> JOptionPane.ERROR_MESSAGE);
> return;
> }
> if (DEBUG)
> out("AudioPlayer.main(): line: " + line);
> if (DEBUG)
> out("AudioPlayer.main(): line format: " +
> line.getFormat());
> // Anil
>
> line.addLineListener(new LineListener() {
>
> public void update(LineEvent event) {
> System.out.println("update(). SpeechPlayer
> LineListener. " +
> event.getLine() + " "
> + event.getType());
> // we want to notify only on the events: when
> clip runs out, and
> // when forcibly stopped.
> // ie. the STOP event. Otherwise the
> application will hang if
> // the blocking array is full.
> // Anil 01/24/2006
> if (event.getType() == LineEvent.Type.STOP) {
> observable.setChanged();
> System.out.println("SpeechPlayer.
> About to notify "
> +
> observable.countObservers()
> + " observers
> regarding line event STOP.");
> observable.notifyObservers(snippet);
> }
> }
>
> });
>
> /*
> * Still not enough. The line now can receive data, but will
> not
> pass
> * them on to the audio output device (which means to your
> sound
> card).
> * This has to be activated.
> */
> line.start();
>
> /*
> * Ok, finally the line is prepared. Now comes the real job:
> we have
> to
> * write data to the line. We do this in a loop. First, we
> read data
> * from the AudioInputStream to a buffer. Then, we write from
> this
> * buffer to the Line. This is done until the end of the file
> is
> * reached, which is detected by a return value of -1 from
> the read
> * method of the AudioInputStream.
> */
> int nBytesRead = 0;
> byte[] abData = new byte[nExternalBufferSize];
> if (DEBUG)
> out("AudioPlayer.main(): starting main loop");
> while (nBytesRead != -1) {
> try {
> nBytesRead = audioInputStream.read(abData, 0,
> abData.length);
> } catch (IOException e) {
> e.printStackTrace();
> ceasePlaying(false, false);
> JOptionPane.showMessageDialog(null, e,
> "ERROR",
> JOptionPane.ERROR_MESSAGE);
> return;
> }
> if (DEBUG)
> out("AudioPlayer.main(): read from
> AudioInputStream (bytes): "
> + nBytesRead);
> if (nBytesRead >= 0) {
> int nBytesWritten = line.write(abData, 0,
> nBytesRead);
> if (DEBUG)
> out("AudioPlayer.main(): written to
> SourceDataLine (bytes): "
> + nBytesWritten);
> }
> }
>
> if (DEBUG)
> out("AudioPlayer.main(): finished main loop");
>
> /*
> * Wait until all data is played. This is only necessary
> because of
> the
> * bug noted below. (If we do not wait, we would interrupt the
> playback
> * by prematurely closing the line and exiting the VM.)
> *
> * Thanks to Margie Fitch for bringing me on the right path
> to this
> * solution.
> */
> if (DEBUG)
> out("AudioPlayer.main(): before drain");
> line.drain();
>
> /*
> * All data are played. We can close the shop.
> */
> if (DEBUG)
> out("AudioPlayer.main(): before close");
> line.close();
> }
>
> // TODO: maybe can used by others. AudioLoop?
> // In this case, move to AudioCommon.
> private static SourceDataLine getSourceDataLine(String strMixerName,
> AudioFormat audioFormat, int nBufferSize) {
> /*
> * Asking for a line is a rather tricky thing. We have to
> construct
> an
> * Info object that specifies the desired preferences for the
> line.
> * First, we have to say which kind of line we want. The
> possibilities
> * are: SourceDataLine (for playback), Clip (for repeated
> playback)
> and
> * TargetDataLine (for recording). Here, we want to do normal
> playback,
> * so we ask for a SourceDataLine. Then, we have to pass an
> AudioFormat
> * object, so that the Line knows which format the data
> passed to it
> * will have. Furthermore, we can give Java Sound a hint
> about how
> big
> * the internal buffer for the line should be. This isn't
> used here,
> * signaling that we don't care about the exact size. Java
> Sound
> will
> * use some default value for the buffer size.
> */
> SourceDataLine line = null;
> DataLine.Info info = new DataLine.Info(SourceDataLine.class,
> audioFormat,
> nBufferSize);
> try {
> if (strMixerName != null) {
> Mixer.Info mixerInfo =
> AudioCommon.getMixerInfo(strMixerName);
> if (mixerInfo == null) {
> out("AudioPlayer: mixer not found: "
> + strMixerName);
> String err = "AudioPlayer: mixer not
> found: " + strMixerName;
> JOptionPane.showMessageDialog(null,
> err, "ERROR",
>
> JOptionPane.ERROR_MESSAGE);
> return null;
> }
> Mixer mixer = AudioSystem.getMixer(mixerInfo);
> line = (SourceDataLine) mixer.getLine(info);
> } else {
> line = (SourceDataLine)
> AudioSystem.getLine(info);
> }
>
> /*
> * The line is there, but it is not yet ready to
> receive audio
> data.
> * We have to open the line.
> */
> line.open(audioFormat, nBufferSize);
> } catch (LineUnavailableException e) {
> e.printStackTrace();
> } catch (Exception e) {
> e.printStackTrace();
> }
> return line;
> }
>
> public static void main(String[] args) throws Exception {
> SpeechPlayer sp = new SpeechPlayer();
> sp.getObservable().addObserver(new Observer() {
> public void update(Observable o, Object arg) {
> System.out.println("notification reached " +
> arg);
> }
> });
>
> sp.playClip("file:/C:\\Tmp\\lost_ogg_sync_Anil.spx",0,0,false,null,
> false);
> //sp.playClip("http://juwo.com/nodepad/anilsvoice.spx";, 0, 0,
> false,
> null);
> }
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