The Easiest Audio Fix: The Low-Cut Filter


The Easiest Audio Fix: The Low-Cut Filter

I was listening to the Joe Rogan Experience podcast through my home AV system, and the microphone plosives (“P’s”, “B’s” and even “Wh’s”) were popping so hard that I went to turn off the subwoofer. A few of you might think that I’m crazy for listening to a podcast with a subwoofer, but professional audio should be about making things audio good on every system. Had I been playing this in my car, I would have also heard the pops, albeit less intensely. I also hear those pops on just about every package on the local news. Massively attenuating these pops is a fairly easy process that can be done in a flash. It works equally well on every vocal microphone and makes audio sound much better full-range speakers. 

Engage your EQ’s low-cut filter and set it to 100 Hz. Using a 48dB/oct is ideal, but any slope will do. Do the same process for every vocal recording, whether spoken, sung, rapped, or anything in between. This will translate on every system, and significantly attenuate microphone pops, handling noise, and wind noise.

There may be very rare instances where this trick the extra bass from the microphone is needed, such as with a baritone singer or a movie announcer with a very deep voice. In those rare cases, be sure to use a windscreen and a shock mount. For the overwhelming majority of individuals, our voices don’t extend much below 100 Hz. You can effectively eliminate popping, rumbling, and mic handling noise just by applying a low-cut filter to every vocal. It takes about two seconds to apply and works wonders to help deliver professional-sounding audio that sounds great on any system. 


CEO and Founder of Finewav. Instagram: @ErykThompson Vero: @ErykThompson

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