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OVO

Formats

What OVO plays.

A local collection is usually a mix of formats collected over many years. These are the common ones, and what each is actually for.

Reference

Formats and what they mean.

Audio formats and their characteristics
FormatTypeNotes
FLACLosslessCommon for archived rips and downloads from artist stores. Larger files, no quality loss from the source.
ALACLosslessApple's lossless format. A natural fit for a collection built around Apple devices.
WAVUncompressedRaw audio with minimal metadata support, so tagging is often the weak point.
AIFFUncompressedUncompressed with better tag support than WAV.
MP3LossyThe format most long-standing collections are made of. Quality depends on the bitrate it was encoded at.
AAC / M4ALossy codec, mixed containerAAC is an efficient lossy codec used widely across Apple platforms. M4A is only the container: an .m4a file can hold lossy AAC or lossless ALAC, so check the codec inside rather than the extension.

Format support depends on what the device can decode, so this list describes the common cases rather than promising every variant of every codec. Compare FLAC, ALAC and AAC on iPhone.

Get OVO on the App Store

OVO is an iPhone-first music player that also runs on iPad and Apple Watch. Download it, point it at the music you already own, and start listening.