MayyTTS throws javax.sound.sampled.LineUnavailableException in OH2


I get this exception when trying to use MaryTTS on Openhab 2 (Say test in Promt):

javax.sound.sampled.LineUnavailableException: line with format PCM_SIGNED 16000.0 Hz, 16 bit, mono, 2 bytes/frame, little-endian not supported. at$DirectDL.implOpen( at at at

Openhab2 on Odroid U3, MarryTTS installed via Paper UI…

Is there something I am missing or is this a bug?


Sound is not working on OH2 build 525.
Already during startup I am receiving a java sound io error.

Later when using say(“some Text”) in rules, I am receiving the error message that there is not voice installed for language de. But I have marrytts installed and enabled.

SInce OH2 is currently being enhanced with respect of sound APIs, it may not be quite completed yet. So I am wondering whether it is worthwhile to submit a bug presently.