This tool is used to convert Waveform Audio File Format (wav) to MPEG-1 Audio Layer 3 (mp3).

Waveform Audio File Format is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs.

MP3 is a coding format for digital audio. Originally defined as the third audio format of the MPEG-1 standard, it was retained and further extended—defining additional bit-rates and support for more audio channels.