1075 Peak Graphical Waveform File Audio Peak files contain waveform information for audio files (e.g. wav or mp3). They allow some applications to generate a graphical representation of the waveform of the audio content of associated audio files, and can enable such audio files to be accessed more quickly by reducing the time it takes to draw the waveform of the audio content. 1 Digital Preservation Department / The National Archives 30 Mar 2011 28 Oct 2022 fmt/330 PUID pk File extension 429 Peak File Signature based on recurring header byte sequence observed in sample test formats. 1 Absolute from BOF 0 0 F106000000[01:02]0000{3}00{3}0000000000{4}FFFFFFFF00000000