Speech Quality Assessment of VoIP: G.711 VS G.722 Based on Interview Tests with Thai Users | Zendy

Therdpong Daengsi | Zendy; Chai Wutiwiwatchai | Zendy; Apiruck Preechayasomboon | Zendy; Saowanit Sukparungsee | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Speech Quality Assessment of VoIP: G.711 VS G.722 Based on Interview Tests with Thai Users

Author(s) -

Therdpong Daengsi,

Chai Wutiwiwatchai,

Apiruck Preechayasomboon,

Saowanit Sukparungsee

Publication year - 2012

Publication title -

international journal of information technology and computer science

Language(s) - English

Resource type - Journals

eISSN - 2074-9015

pISSN - 2074-9007

DOI - 10.5815/ijitcs.2012.02.03

Subject(s) - computer science , voice over ip , codec , speech recognition , reliability (semiconductor) , quality (philosophy) , perception , benchmark (surveying) , natural language processing , psychology , telecommunications , world wide web , the internet , philosophy , epistemology , power (physics) , physics , geodesy , quantum mechanics , neuroscience , geography

This paper presents the comparison between two codecs, G.711 and G.722 at 64 kbps, referring to speech quality perception using a subjective method called interview tests. These subjective tests have been conducted with 201 subjects, who are Thai native speakers that use Thai which is a tonal language, for accuracy and reliability of results. The results from testing with both codecs are almost the same; the scores are 4.17 for G.722 and 4.14 for G.711. After analyzing the results, it has been confirmed that G.722 does not provide better speech quality than G.711 to the Thai subjects significantly, which is consistent with previous information. However, these results could be used as the benchmark of G.711 and G.722 for speech quality assessment within Thai environments.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research