English speech intelligibility test among persons of Arabic native language
Mohammed Abd‐Elbasseer, Sanaa Barakat · The Journal of the Acoustical Society of America · 2008
English language as a non-native language is the most common language over the world, it is the language of conferences, business and the airports. While the Arabic language is the native language of Egypt, the English language is considered as the second language. This research will conduct to investigate the effect of speech level, rate and repetition on the intelligibility of English language among some highly educated Egyptian persons. 34 males and females subjects are participated in this test. 40 sentences of BKB sentences were used with three scored words per sentence. First, they are subjected to the speech rate of about 220, 190, 160, and 100 words per minute at the speech level of about 60 dBA, which is considered as the normal level. Second,they are subjected to the speech level of 60, 70, and 80 dBA at speech rate of 190 words per minute, which is considered as the normal rate. It was found that the intelligibility score increased with decreasing the rate and increasing the level respectively. It was found that scores of the worst scored sentence for the first 15 subjects did not change, whatever we repeat the tested sentence at normal rate and level.