popfilters

Popfilters, also known as pop screens or pop shields, are microphone accessories designed to reduce plosive sounds produced by letters such as p, b, and t during vocal recording. They consist of a circular or oval mesh screen mounted on a flexible arm and clamp, positioned between the performer and the microphone.

Designs vary, but the most common is a metal or nylon mesh disc on a gooseneck arm. Some units use a foam windscreen that fits over the microphone. Popfilters are inexpensive, easy to attach, and compatible with a wide range of microphone types, including dynamic and condenser mics. They are often used in home studios, podcasts, voiceover work, and broadcast environments.

How they work: the screen diffuses and disperses the air pressure from fast-moving plosive air released during speech, reducing bursts that can overload a microphone capsule. They primarily address plosives and can also help with bursty sibilance in some cases. They do not significantly alter the overall tonal balance and are not a substitute for proper mic technique.

Placement and use: position the filter a few inches from the mouth and slightly off-axis to avoid directed blasts, while keeping the mic clear of the screen. Typical distances vary from about 2 to 4 inches, adjusted to balance plosive reduction with natural vocal sound. They are widely used in studios, podcasts, streaming, and other settings that involve close-miking.

Maintenance: clean periodically and inspect for wear. Nylon meshes can accumulate moisture or saliva deposits; replace the filter if the mesh becomes torn or degraded.