I found the soft-voice willowpond tts as an addon for NVDA! here is the link.
https://www.sendspace.com/file/o533k4
This synthesizer is 16bit. and they made an addon for it in python! so if they can make such an addon for willowpond tts or softvoice, then why not keynote gol multimedia multilingual? someone please try making an addon for keynote gold multimedia multilingual for nvda and for android... You may need to make an emulated .ocx windows95 driver for it to work and crack the old 15 minute demo timer for keynote gold multimedia multilingual though. a bug in softvoice addon. it does not save your rate parameters for nvda so you need to use synth settings ring move slider up and down to get your rate set back the way you want it. and also the large male voice pitch should be lower. so someone please add pitch control and if possible make an android version please?