Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Institute for Telecommunication Sciences / Resources / Audio Quality Research / Coding

Audio and Speech Coding

Digital coding of audio and speech signals has enabled a multitude of telecommunications and entertainment offerings including cellular telephones, Voice over Internet Protocol (VoIP) services, and MP3 music files.

Examples of some speech coders can be heard here.

Some of the technical publications found on this site describe Program efforts in the area of coding.