TarsosDSP on Android. GoertzelDTMF example: No line matching form ERROR

[Aroxed]

Hello.
I'd like to use the TarsosDSP library in order to decode DTMF symbols when a user speaks using Android device.
I found an example in the TarsosDSP archive named GoertzelDTMF.java. I tried to run just as it is but encounter the following error in method public void process(...) at line dispatcher.addAudioProcessor(new BlockingAudioPlayer(format, stepSize, 0));:

E/AndroidRuntime: FATAL EXCEPTION: Thread-4981
Process: ua.promin.calladapter, PID: 4336
java.lang.IllegalArgumentException: No line matching form [pcm_signed 44100.0 Hz 16 bits 1 channels little endian]; minBufferS -1; maxBufferS -1 is supported.
at ua.promin.calladapter.audio.lib.sampled.AudioSystem.getLine(AudioSystem.java:425)
at ua.promin.calladapter.audio.lib.BlockingAudioPlayer.(BlockingAudioPlayer.java:52)
at ua.promin.calladapter.audio.Recording.decodeDTMFStatic(Recording.java:108)
at ua.promin.calladapter.audio.Recording.access$100(Recording.java:20)
at ua.promin.calladapter.audio.Recording$1.run(Recording.java:46)
at java.lang.Thread.run(Thread.java:818)

What does this error mean and how to fix it?
Thanks in advance.