moin Reinhard,
I don't really know of any open source German TTS systen (although way back when, someone appears to have hacked some German Holmes-elements into rsynth -- not sure of the status of that code; best to ask rsynth's maintainer (Nick Ing-Simmons) if you want to go that route, which I suspect you probably don't), so...
"free-as-in-free-beer" systems, yes: check out HADIFIX and the 'txt2pho' program from (I believe) the Universität Bonn, for use with MBROLA (free for non-commercial and non-military use).
There's also an add-on module for the free, open-source festival TTS system. The German add-on itself is available under an MBROLA-like license from the IMS Stuttgart. Warning here: I've never actually gotten the whole ims-german-festival package to compile under current versions of festival: I think the project ran out of money and no one's been maintaining that code for several years now -- you may have better luck with an older version of festival itself and/or more scheme hacking than I was prepared to do ;-)
You might also checkout BOSS (also from Uni Bonn), which I've never looked at, but is the successor system to HADIFIX. BOSS itself is supposed to be open source, but the voices and language models are (unfortunately) still proprietary, AFAIK.
Please let me know if you manage to dig up anything better!
marmosets, Bryan
Some URLs:
rsynth: ftp://svr-ftp.eng.cam.ac.uk/pub/comp.speech/synthesis/rsynth-2.0.tar.gz
festival: http://www.cstr.ed.ac.uk/projects/festival
HADIFIX/txt2pho: http://www.ikp.uni-bonn.de/dt/forsch/phonetik/hadifix/HADIFIXforMBROLA.html
BOSS: http://www.ikp.uni-bonn.de/dt/forsch/phonetik/boss/index.html
MBROLA: http://tcts.fpms.ac.be/synthesis/mbrola.html
Comparison of TTS Systems for German: http://www.8hertz.com/tts/tts.html
On 2008-03-06 20:40:00, Reinhard Handl rfh@atnet.at appears to have written:
hello list,
sorry for the off-topic, but i dont know where to ask:
does anybody know a free or opensource TTS with a german male voice?
any hints appreciated,
thx, reinhard