.wav
WAV audioWaveform Audio File Format
Microsoft and IBM’s audio format from 1991. It normally stores uncompressed PCM samples, keeping full quality at the cost of large files.
Recording, editing and mastering, and sound effects for video and games.
Opens in Music, QuickTime, Windows Media Player, VLC, every audio editor
About WAV files.aac
AAC audioAdvanced Audio Coding
A lossy codec standardised by MPEG in 1997 as the successor to MP3, usually sounding better at the same bit rate. A bare .aac file holds the raw stream without an MP4 wrapper.
Streaming audio, digital radio and soundtracks taken from video files.
Opens in Music, QuickTime, VLC, Windows Media Player, most phones
About AAC files