This is the icon for a .wav file. The icon is meant to resemble a page of paper with the top right hand corner partially folded down. Inside the rectangular shape of the page are the letters WAV written together in all caps.
This is a WAV icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.