Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms
The Chinese word identification and sentence intelligibility are evaluated by grades 3 and 5 students in the classrooms with different reverberation times (RTs) from three primary school under different signal-to-noise ratios (SNRs). The relationships between subjective word identification and sente...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2016-01-01
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| Series: | Archives of Acoustics |
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| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1625 |
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| author | Jianxin PENG Peng JIANG |
| author_facet | Jianxin PENG Peng JIANG |
| author_sort | Jianxin PENG |
| collection | DOAJ |
| description | The Chinese word identification and sentence intelligibility are evaluated by grades 3 and 5 students in the classrooms with different reverberation times (RTs) from three primary school under different signal-to-noise ratios (SNRs). The relationships between subjective word identification and sentence intelligibility scores and speech transmission index (STI) are analyzed. The results show that both Chinese word identification and sentence intelligibility scores for grades 3 and 5 students in the classroom increased with the increase of SNR (and STI), increased with the increase of the age of students, and decreased with the increase of RT. To achieve a 99% sentence intelligibility score, the STIs required for grades 3, grade 5 students, and adults are 0.71, 0.61, and 0.51, respectively. The required objective acoustical index determined by a certain threshold of the word identification test might be underestimated for younger children (grade 3 students) in classroom but overestimated for adults. A method based on the sentence test is more useful for speech intelligibility evaluation in classrooms than that based on the word test for different age groups. Younger children need more favorable classroom acoustical environment with a higher STI than older children and adults to achieve the optimum speech communication in the classroom. |
| format | Article |
| id | doaj-art-66763dafd1d943a8b944d6f2e3cdeefe |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-66763dafd1d943a8b944d6f2e3cdeefe2025-08-20T02:39:22ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2016-01-0141210.1515/aoa-2016-0021Chinese Word Identification and Sentence Intelligibility in Primary School ClassroomsJianxin PENG0Peng JIANG1South China University of TechnologySouth China University of TechnologyThe Chinese word identification and sentence intelligibility are evaluated by grades 3 and 5 students in the classrooms with different reverberation times (RTs) from three primary school under different signal-to-noise ratios (SNRs). The relationships between subjective word identification and sentence intelligibility scores and speech transmission index (STI) are analyzed. The results show that both Chinese word identification and sentence intelligibility scores for grades 3 and 5 students in the classroom increased with the increase of SNR (and STI), increased with the increase of the age of students, and decreased with the increase of RT. To achieve a 99% sentence intelligibility score, the STIs required for grades 3, grade 5 students, and adults are 0.71, 0.61, and 0.51, respectively. The required objective acoustical index determined by a certain threshold of the word identification test might be underestimated for younger children (grade 3 students) in classroom but overestimated for adults. A method based on the sentence test is more useful for speech intelligibility evaluation in classrooms than that based on the word test for different age groups. Younger children need more favorable classroom acoustical environment with a higher STI than older children and adults to achieve the optimum speech communication in the classroom.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1625speech identificationreverberation timesignal-to-noise ratioclassroomspeech transmission indexchildren. |
| spellingShingle | Jianxin PENG Peng JIANG Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms Archives of Acoustics speech identification reverberation time signal-to-noise ratio classroom speech transmission index children. |
| title | Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms |
| title_full | Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms |
| title_fullStr | Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms |
| title_full_unstemmed | Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms |
| title_short | Chinese Word Identification and Sentence Intelligibility in Primary School Classrooms |
| title_sort | chinese word identification and sentence intelligibility in primary school classrooms |
| topic | speech identification reverberation time signal-to-noise ratio classroom speech transmission index children. |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1625 |
| work_keys_str_mv | AT jianxinpeng chinesewordidentificationandsentenceintelligibilityinprimaryschoolclassrooms AT pengjiang chinesewordidentificationandsentenceintelligibilityinprimaryschoolclassrooms |