Use the choose File Upload to the right> Send your audio in .WAV / .AIFF Format for consideration to use our online audio mastering services.

To send multiple files please zip, 7zip or rar archive them. Use our 128-bit TLS encryption uploader or We Transfer using the email “incoming at stmastering co uk” - You can also upload to our dropbox folder. Please ensure you email us after to let us know which files youve uploaded.

We will confirm receipt of work by email within 24/48 hours. Once your work is ready we will send a link to download your master to the e-mail address submitted.

If you don’t hear from us after 24 hrs, first please check your spam & junk folder then contact us.

We know what we’re going to do in our preparation sessions but if there’s something specific, leave us a message to give us an indication of what you would like us to do i.e. retain the dynamics or make it hot for club use etc. Reference tracks accepted.