Visually impaired interpreter, language instructor, blogger, and radio/podcast host/producer. Assistive technology advocate & consultant. Avocations: mountain climbing 🏔️ and piano playing 🎹 (Yamaha CLP-745). Based in Tehran (for now).
Eloquence 64-bit for NVDA now supports a 44 kHz mode. It’s currently in preview and still being fine-tuned.
You can use the Sample Rate combo box in the Voices dialog to increase the default rate from 11 kHz to 44 kHz for clearer speech.
Unlike the 22 kHz mode in IBMTTS and ViaVoice, this mode doesn’t introduce pops, jitters, or unexpected voice resets.
Try the 16.1 upsampling preview release:
https://github.com/hozosch/eloquence_64/releases/tag/upsampling_preview
For more on the upsampling preview and author discussions check here:
https://github.com/fastfinge/eloquence_64/issues/88#issuecomment-4091293709