How to use a brickwall limiter in a mastering chain
Plus, how not to use one...
MASTERING WEEK: Brickwall limiters are an essential part of the mastering chain. They add a final level of control, ensuring there are no overs or clipping. They also induce extra perceived volume and punch, allowing us to make our tracks larger than life.
These powerful processors can be abused or simply used incorrectly, and the results are often undesirable effects such as distortion, clipping and uncontrollable saturation. To avoid all of these problems, simply use sensible amounts of gain reduction and less gain.
Below you can see and hear the difference between a conservatively limited signal and one that has been pushed too far. The same limiter is used in both examples, and a loudness meter is used to monitor the results throughout the process.
Step 1: An untreated pre-master is loaded and played back here. You can hear it in its raw state below. This has no limiting applied and, as you can see, has a low RMS and perceived volume level. Some limiting should fix this.
Step 2: A cutting-edge brickwall limiter is inserted into the signal path and gain is driven into the circuit until around 3dB of gain reduction is redacted. This brings us to around -10dB RMS and an acceptable perceived volume for this style of track.
Step 3: Push things too far and we create massive amounts of perceived level by killing our dynamic range. This gives us unwanted distortion and clipping. The resulting sound is unpleasant and contains no dynamics. Not good - this sort of limiter abuse should be avoided.
Get the MusicRadar Newsletter
Want all the hottest music and gear news, reviews, deals, features and more, direct to your inbox? Sign up here.
Future Music is the number one magazine for today's producers. Packed with technique and technology we'll help you make great new music. All-access artist interviews, in-depth gear reviews, essential production tutorials and much more. Every marvellous monthly edition features reliable reviews of the latest and greatest hardware and software technology and techniques, unparalleled advice, in-depth interviews, sensational free samples and so much more to improve the experience and outcome of your music-making.
"This will help artists and producers who don’t have the option of hiring someone like me": Spike AI puts an AI chatbot based on chart-topping mix engineer Spike Stent inside your DAW
“She thought anything could be pop - she wanted pop to be pushed to its extremes”: Sophie’s brother and studio engineer on completing her final album and the legacy she leaves behind