.G723 File Extension

A G723 file is an audio file saved using the G.723 codec, an encoding algorithm created by the International Telegraph Union (ITU). It likely contains spoken audio meant to be transmitted over a network. The audio G723 files contain is 8khz ADPCM audio, meant to be transmitted at either 24 or 40 kbit/s.

G.723 is one of several ADPCM audio standards created by the ITU, which is a communications technology-oriented division of the United Nations. It is related to both the G.721 standard and the G.726 standard, which also describe codecs used to transmit spoken audio over a network. G.726 is the newest of these standards; it replaced both the G.721 and G.723 standards.

Primarily, the G.723 audio was used to encode audio transmitted over international or wireless phone networks. So, a G723 audio file likely contains audio spoken during a phone conversation.

You can use FFmpeg (multiplatform) or libsndfile (multiplatform) to play the audio a G723 file contains.

You can use FFmpeg (multiplatform) or libsndfile (multiplatform) to convert the audio a G723 file contains to other formats. For example, FFmpeg can convert the audio a G723 file contains to many common audio formats, including .MP3, .WAV, .FLAC, and .AAC.