Given the task definition and input, reply with output. In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

WAV ( or WAVE ) , short for Waveform Audio File Format , is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs .

Waveform Audio File Format ( WAVE , or more commonly known as WAV due to its filename extension ; pronounced " wave " or ) is an audio file format standard , developed by Microsoft and IBM , for storing an audio bitstream on PCs .