A Comparative Study of Sassanid, Qajar and Contemporary Phonetic Systems
Keywords:
Phonetic pattern, Passaggio, Vocal fold, Sassanid era, Qajarid era, Dastgah, Radif.Abstract
Comparison among the phonetic of people in different eras helped us to find a better understanding of their culture. Also we can use this approached to predict the future phonetic. In this paper we study the difference among phonetic of people in the present
period, Qajar era and Sassanid era. 2000 people in Tehran are selected randomly. Because Tehran is the capital of Iran, and the people from all over different parts of Iran are gathered in Tehran, this sample can be considered as the sample of Iranian people. From each one a speech is recorded. Using the VST instrument, these speeches translated to a harmony and a consensus harmony is considered as the harmony of current people’s phonetic. By Simulation of the speech of the people in Qajar era the harmony of speech of that ear is simulated. Finally by using the 504 Gushehes and Radif of Iranian Avaz, which is generated in Sassanid ear, the harmony of the people in this era is simulated. By comparison of these three harmonies, we obtained a significant different between the harmony of current era and Sassanid era, which is in the basic musical interval. These differences between now and Qajar era is in the upper fifth musical interval. It is shown that during the last 1500 years there exist 2.5 blind musical deviations between harmony of current phonetics and Sassanid Harmony phonetics. This deviation from Qajar era until now is 0.5 blind musical interval. Our results show that the deviation in the harmony of Iranian phonetics from the phonetics of the people of last century is more with respect to the people in the ancient time.
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