New NVSpeech Player update! Huge one. But it's V13 so maybe it'll be unlucky. Who knows! I did a major engine change, but languages are kept the same for now.
You'll see checkboxes for coarticulation, microprosody, and phrase-final lengthening. Here's what they do — and why the difference is subtle but real.
Coarticulation: Your tongue doesn't teleport between sounds, it glides. These settings make consonants "lean toward" neighboring vowels. The "velar pinch" makes /k/ sound different before "ee" vs "oo" — try "key" vs "coo" and notice how the /k/ changes. That's real, and now the synth does it.
Microprosody: After voiceless sounds like /p/ or /s/, the next vowel's pitch starts slightly higher. After voiced /b/ or /z/, slightly lower. Maybe 10-15 Hz — tiny, but expected by your brain.
Phrase-final lengthening (off by default, useful for some languages): We slow down at sentence endings. This stretches the final vowel so speech feels punctuated, not abruptly stopped.
Rate-dependent reduction: At high speeds, unstressed schwas get shortened, keeping fast speech crisp.
Anticipatory nasalization (off by default): Vowels pick up nasal resonance before /m/ or /n/. Optional since languages vary.
Will you hear a dramatic difference? Honestly, each one is subtle — like color-grading a photo. You might not spot what changed, but it feels less synthetic. I encourage language speakers to mess with them for their language and report which numbers work.
eurpod.com/synths/nvSpeechPlayer-2026-v15.nvda-addon
