Vinyl Masters (VYN): Delivered as 24bit WAV files.It includes a set of best practices for mastering specifically for Apple Music, and mastering houses/engineers need to be approved by Apple to provide them. Apple Digital Masters is an Apple initiative launched after the release of its new generation of AAC encoding tools that accept hi-resolution PCM sources.Apple Digital Masters are optional, Apple Music and other digital distributors will accept Standard Digital Masters. If you supply mixes at any resolution between 24 bit / 44.1kHz to 24 bit / 96kHz, we’ll provide the master at the same resolution.Sample rate same as supplied source file. Apple Digital Masters: Delivered as 24bit WAV files.Required if you wish to have a CD Production Master made up.Suitable for radio and digital distribution such as Spotify and other streaming platforms.The default delivery format is Standard Digital (DIG): Delivered as 16bit / 44.1kHz WAV files unless chosen otherwise.If you are unsure, you can provide us with both a version with master buss processing on, and a version with it off. We don’t advise removing it completely however, as it may lose the intended vibe. Master Buss Processing: This is often case-by-case, as it’s easy to overdo compression/saturation/limiting on the master buss.Peak Level: There is a lot of advice around saying that -3 is a good target which is fine, however as long as the audio isn’t clipped (unless a deliberate effect), or very low level, then the mastering engineer can adjust the gain as needed.If you require masters outside of the standard 44.1Khz sample rate, please let us know. Sample Rate: Please submit to us in whatever sample rate your track was recorded at.32Bit Floating Point files offer no benefit but can also be used. Bit Rate: 24Bit is preferred however 16Bit files are fine if a 24Bit source is unavailable.remove count in at start of song, fade song at end or any other requirements) provide precise details of any special edits (i.e.provide details regarding intended release platform (i.e.if you have a reference song then please supply details.provide clear notes as to what you would like done in the mastering process (i.e.supply your mix at a sensible level: try and achieve a level close to 0dB but never allow the mix to go into the red (clipping).MP3 format is unacceptable for mastering.AIFF and/or dual mono LEFT and RIGHT files can also be accommodated we prefer interleaved Stereo WAV files to work from.

Mastering music