Audio mastering is the last and final processing in producing an industry quality CD.
In the recording studio, songs are recorded individually. The main job of the audio engineer is to make each track sound the best it can. It is very difficult to have every track sound the same in volume, tone, EQ and dynamics. In this final stage, the mastering engineer brings these tracks together to give it a consistent sound from track to track.
Audio mastering can be the difference in having your CD sounding like a demo, to having it sound like true industry quality. Mastering raises the total output level of the final CD through dynamic processing, so your CD album can compete with major label releases. Mastering engineers have years of experience to make your output of your CD louder, but not loose the overall feel of your songs.
Mastering can also be used to fix minor problems in mixes. Pops, crackles and hiss can be reduced or removed with noise-reduction processing. This will clean up your mixes and make it sound more professional.
The great part of mastering is that you can enhance your stereo image and other elements of your mixes. Stereo imaging can make panned elements in the mix sound as if they are further out from the speakers, giving you a better musical experience.
The mastering engineer’s job is to also put your songs in the correct order with the right spacing between tracks. This will give your listener the best experience in listening to your CD. You may also request the mastering engineer digitally add the tittles and track info.
Raise the overall output level of the master CD.
Make sure all songs are at the same level.
Clean up noise with noise-reduction if needed.
Correct minor mix tones with EQ.
Fix spaces between tracks.