VoicePlayer.java 文件源码

private void init() {
    AudioFormat speexFormat = new AudioFormat(16000, 16, 1, true, false);
    DataLine.Info sourceLineInfo = new DataLine.Info(SourceDataLine.class, speexFormat, bufferSize);
    speexDecoder.init(1, 16000, 1, false);
    try {
        line = (SourceDataLine) AudioSystem.getLine(sourceLineInfo);
        line.open(speexFormat, bufferSize);

        volumeControl = (FloatControl) line.getControl(FloatControl.Type.MASTER_GAIN);
        minGainDB = volumeControl.getMinimum();
        ampGainDB = ((10.0f / 20.0f) * volumeControl.getMaximum()) - volumeControl.getMinimum();
        cste = Math.log(10.0) / 20;

        volumeControl.setValue((float) minGainDB);

        line.start();

    } catch (LineUnavailableException e) {
        App.logger.w("Failed to create voice player (type: " + type + " id: " + playerId + "):" , e);
        if (!exit)
            close(false);
    }
}