|Pre-mastering for Vinyl
Pre-mastering is the process of getting your audio ready for the vinyl lacquer cutting stage. If your audio is already mastered for vinyl, you will not require pre-mastering services from Microforum.
What is required for submitting an acceptable vinyl premaster to Microforum?
Source Audio Files:
A Note About High Frequencies:
The lacquer cutting system (the next step in vinyl manufacturing) is capable of putting very high peak levels on the record, but only ideal playback systems in optimal conditions will be able to play the sound back without distortion. Since we need the record to be playable on all types of equipment, it’s necessary to limit the High Frequency information. It’s recommended to provide a vinyl premaster that already has a balance of high frequency suitable for vinyl production.
A Note About Low Frequencies:
Excessive level in the very low bass can cause the record to skip. Excessive stereo information in the bass appears as vertical movement in the groove, so it’s sometimes necessary to remove the stereo component of the music as well as any out of phase information in the very low frequency range. The cutting system is equipped to correct minor issues with the bass however, more severe problems will result in a record that can’t be cut or that sounds very different from the source audio files provided. It’s recommended to provide a vinyl premaster that already has low frequency level and stereo content that is suitable for vinyl production.
Reference Acetates or “Dub Plates”:
Any time that there is a question about whether or not your record complies with these guidelines, there is the option to cut a reference acetate first. An acetate is a disc that is cut just like the master record and can be played a few times to hear what your records will sound like. It can save the extra time and the expense of additional test pressings if you’re unsure. Please contact your Account Manager for details.