The job of a CODEC (Coder/Decoder) is to: Convert an analog voice signal into a digital signal Convert a digital signal into an analog voice signal Convert a computer signal into a voice signal Both a and b Solution Option c is true, Since the job of a codec is to encode a stream of data a signal for storage and transmission, possibly in encrypted form, and the process is revered in decoder function for playback or editing. Codec are used in videoconferencing, streaming media, and video editing applications..