| Subject | English | Chinese simplified |
| comp., MS | audio codec | 音频编解码器 (The digital encoding used to represent audio data) |
| comp., MS | narrowband audio codec | 窄带音频编解码器 (An audio codec that provides voice by using a sampling rate of 8 kHz) |
| comp., MS | wideband audio codec | 宽带音频编解码器 (An audio codec that provides high-quality voice by using a sampling rate of 16 kHz) |
| comp., MS | Windows Media Audio codec | Windows Media 音频编解码器 (A codec used to compress and decompress audio streams) |