What is a .MP1 file?
MP1 is MPEG-1 Audio Layer I, the simplest of the MPEG-1 audio layers.
- Did you know
- MP1 was the first MPEG audio layer, soon eclipsed by MP2 and MP3.
- Layer I underpinned the Precision Adaptive Sub-band Coding used by Philips’ Digital Compact Cassette, fixed there at 384 kilobits per second.
- It is the computationally simplest of the three MPEG-1 audio layers, trading higher bitrates for an easier encoder and decoder.
- What Analyser reads
- Identify many more audio formats: lossless/hi-res codecs (Monkey’s Audio, WavPack, TAK, True Audio, DSD/SACD, Musepack), pro containers (Core Audio, RF64/BW64, Wave64, Sun AU, Broadcast Wave with timecode), speech/mobile (Speex, AMR-WB, QCP, 3GA, M4R, GSM), MPEG Layer I/II, instrument banks (SoundFont, SFZ, DLS, RIFF MIDI, GigaStudio), ringtones (RTTTL, iMelody, SAP), tracker modules (MOD, XM, IT, S3M, OctaMED, 669, Oktalyzer), chiptunes (NES NSF, SNES SPC, VGM, Game Boy GBS, AY, YM) and Audacity projects.
- Depth of analysis
- .MP1 is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .MP1 file
- Drag a .MP1 file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.