PopFilter

PopFilter, also known as a pop shield, is a screen placed between a microphone and a performer to reduce plosive consonants such as p, b, and t. The screen diffuses the bursts of air that accompany these sounds, lowering the risk of distortion and sibilance in the captured signal.

PopFilter designs typically consist of a circular or oval fabric screen stretched over a hoop, attached to a clamp or gooseneck. Common materials are nylon or other synthetic fabrics; some models use metal or dual-layer designs for greater diffusion. They are typically mounted on a mic stand via a clamp and can be positioned at varying distances.

Effectiveness: PopFilter reduces low-frequency plosives and heavy bursts of air without substantially altering the microphone’s tonal balance when properly placed. The ideal distance is typically a few inches, depending on the mic and vocalist. They do not protect against wind noise in outdoor settings; for that purpose windscreens are used.

Variations and usage: PopFilter comes in desktop, gooseneck, or clip-on forms; some include adjustable arms or multiple screens. They are widely used in studios, podcasting, voice acting, and home recording.

History: PopFilter has become a standard accessory in many recording environments since the mid-20th century, complementing proper mic technique and other acoustic treatment. Related devices include windscreens and other plosive-diffusion tools.