We accept all of the common audio file formats, and prefer Wave or AIFF.

Bit depth should be 24 bits or 32 bits, but 16 bits is fine as well if that’s what you have.

Don’t use any format with lossy compression, for example MP3, AAC, WMA etc.

The sample rate should be the same as the sample rate that you have used while recording and mixing, usually 44.1 – 192 kHz. Don’t do any sample rate conversion on your mixes before mastering unless there is a good reason to do so. We can work with whatever you send, and we will make sure that any conversions are properly done when needed.

Please name the files clearly, with at least the song title.

Before delivering the mixes to us, please put them all in a folder named with the artist name and record title, and compress the folder to a zip-file.

Sending a zip file to us is usually easier than uploading lots of individual files. The zip format also makes sure that the files arrives safely, as the built-in error checking will warn us if there were any errors during the transfer.

If you want to send stems, please make sure that all the stems have the same starting point, and that the sum of all stems is the approved mix.