| Subject | Portuguese | English |
| comp., MS, Braz. | codec de imagem | image encoder/decoder (Software or an algorithm that converts images to a specified file format (encoder) or from file format to displayed image (decoder)) |
| comp., MS, Braz. | codec de imagem | image codec (Software or an algorithm that converts images to a specified file format (encoder) or from file format to displayed image (decoder)) |
| commun. | codec de referência | reference codec |
| comp., MS, Braz. | codec de tela do Windows Media | Windows Media Screen codec (A codec used to compress and decompress sequences of screen images) |
| commun. | codec de voz de referência | reference speech codec |
| comp., MS, Braz. | codec de vídeo do Windows Media | Windows Media Video codec (A codec used to compress and decompress video streams) |
| comp., MS | codec de áudio | audio codec (The digital encoding used to represent audio data) |
| comp., MS, Braz. | codec de áudio do Windows Media | Windows Media Audio codec (A codec used to compress and decompress audio streams) |
| commun. | codec digital | digital codec |
| commun. | codec ideal | ideal codec |
| IT | codec monocanal | single-channel codec |
| IT | codec monocanal | per line codec |
| el. | codec PCM | PCM encoder-decoder |
| el. | codec PCM | PCM codec |
| comp., MS, Braz. | codec Windows Media Speech | Windows Media Speech codec (A codec used to compress and decompress audio streams with an emphasis on speech) |
| commun. | especificação do codec | codec specification |
| commun. | método do codec | codec approach |