3 · VALIDATION TESTS
VOWEL SWEEP plays AA AE AH EH IH IY OW UW in sequence.
◉ PHONEME INSPECTOR
| PARAM | VALUE |
| phoneme | — |
| family/type | — |
| duration | — |
| voiced | — |
| F1 | — |
| F2 | — |
| F3 | — |
| noise filter | — |
| ADSR (ms) | — |
IDLE — press SPEAK.
ENGINE: sawtooth F0 → parallel F1/F2/F3 resonators.
Plosives = closure + burst + voicing tail.
Sibilant S = HP noise → parallel 4.5/6/7.5 kHz bands (unvoiced).
Sibilant S = HP noise → parallel 4.5/6/7.5 kHz bands (unvoiced).
Adjacent voiced formants interpolate over TRANSITION ms. Stable F0,
no vibrato. All math, no samples/TTS.