â¢ A sound source excites a (vocal tract) filter. â Voiced: Periodic source, created by vocal cords. â UnVoiced: Aperiodic and noisy source. â¢The Pitch is the fundamental frequency of. the vocal cords vibration (also called F0) followed by 4-5 Formants (F1 -F5) at higher. frequencies. Spectral look of âOoooohhhhâ.
The word demiurge is an English word from demiurgus, a Latinized form of the Greek Î´Î·Î¼Î¹Î¿ÏÏÎ³ÏÏ, dÄmiourgos which was originally a common noun meaning craftsman or artisan, but gradually it came to mean producer and eventually creator.
1 demi- : half. one that partly belongs to. 2  deoxy- : (chemistry) compounds that are formally derived from others by the replacement of a hydroxy group by a hydrogen atom. 3  deuter- , deutero- : second (in the sense of next after the first). 4  di- : two, twice or double. 5  through, across.