@Override
    public void read(JmeImporter im) throws IOException {
        super.read(im);
        InputCapsule ic = im.getCapsule(this);
        stream = ic.readBoolean("do_stream", false);
        streamCache = ic.readBoolean("use_stream_cache", false);
    }
Specifies if the stream cache is used.

When enabled, the audio stream will
be read entirely but not decoded, allowing features such as
seeking, looping and determining duration.

@return true if stream cache is in use, otherwise false
jme3-core/src/main/java/com/jme3/audio/AudioKey.java