On Windows espeak installs itself as command line program as well as as SAPI
voice. Using the SAPI voice is simpler, so there is no need to keep the command
line option for it.
Change-Id: I44fbd806572d5c14b976aa5d58a91935f04c6338
This adds basic support for using the OS X' TTS system. The current
implementation does only support selecting the voice itself, no further
settings (like speed pitch / speed) adjustments are implemented. As OS X' TTS
system wants the strings to get spoken in 8 bit encoding problems with locale
combinations are possible. For this better error handling in the rbutil TTS is
needed. The voice test button in the configuration dialog reacts pretty slow
due to the way its speaking is done. This can get changed but also requires
adjustments in the rbutil TTS system.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24979 a1c6a512-1295-4272-9138-f99709370657
