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.
In Gnosticism, the world of the demiurge is represented by the underworld, which is associated with matter, flesh, time and, more particularly, an imperfect, ephemeral world.