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Chapter 16. Audio Testing for Validation > Speech Communication Test

16.5. Speech Communication Test

An important application area covered by the MPEG-4 Audio standard is speech communication. The algorithms standardized for speech coding were designed for transmitting voice over different networks, including PSTN, IP, and wireless.

Other standardization bodies (such as ITU-T and the European Telecommunication Standards Institute [ETSI]) have standardized speech coding algorithms for similar applications [G722, G723, G729, ETSI97].


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