Audio Spec

Audio File Specifications

High quality audio is essential. Always try to record and master your music at the highest possible resolution.

We can’t accept MP3s, only the formats listed below. We would strongly recommend providing 24 bit files and prefer 24bit/96kHz, which will mean we can supply music services who specialise in high resolution audio.

Here’s more information about sample rates and bit depths.

Sample Rates

Sample Rate

Example

44.1 kHz

Ripped CD audio

48 kHz

Digital TV, DAB, DVDs, DAT

88.2 kHz

Master tapes, digital field recorders

96 kHz

Master tapes, digital field recorders, DVD-Audio, Blu-ray

192 kHz

Master tapes

Bit depths

Bit depth

Example

16

CD audio

24

Master tapes, digital field recorders, DVD-Audio, Blu-ray

32 integer

32 floating point

Audio processing software

File formats

Format

Source

Caveat

WAV

Most software

AIFF

Mac OS software

32 bit floating point cannot be accepted

CAF (Core Audio File)

Mac OS software

NIST SPHERE (has .WAV extension)

Choosing the wrong WAV option when exporting audio from editor

FLAC

32 bit integer and floating point cannot be accepted