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The Shure SM7DB is a popular dynamic microphone favored by podcasters, broadcasters, and recording engineers. Its reputation for excellent sound quality is complemented by the need for effective plosive and wind protection. Choosing the right plosives and wind screens can significantly enhance audio clarity and reduce unwanted noise.
Understanding Plosives and Wind Noise
Plosives are harsh sounds produced when pronouncing certain consonants like p, b, t, and d. These sounds create a burst of air that can cause distortion and clipping in recordings. Wind noise, on the other hand, results from ambient airflow hitting the microphone, often causing low-frequency rumble or hissing sounds.
Best Types of Screens for the Shure SM7DB
To combat plosives and wind noise, various screens and filters are available. The most effective options include foam windscreens, pop filters, and specialized windshields designed for broadcast microphones.
Foam Windscreens
Foam windscreens are simple, affordable, and easy to use. They fit snugly over the microphone and absorb some of the air pressure from plosives. For the Shure SM7DB, a high-quality foam windscreen can significantly reduce plosive sounds without affecting audio quality.
Pop Filters
Pop filters are mesh screens that attach in front of the microphone. They are highly effective at dispersing the air from plosive consonants. For the SM7DB, a sturdy, adjustable pop filter with a flexible gooseneck is recommended for optimal positioning.
Windshields and Windshields for Broadcast
Specialized windshields, often made of foam or furry materials (like dead cats), are designed to protect against wind noise during outdoor recordings. While not always necessary indoors, they can be useful in windy environments or for outdoor broadcasts involving the SM7DB.
Recommended Products for the Shure SM7DB
- RODE WS6 Windscreen: A foam windscreen designed for broadcast microphones, suitable for the SM7DB.
- Auphonix Pop Filter: An adjustable metal pop filter with a fine mesh that reduces plosives effectively.
- Shure A7WS Windscreen: Specifically designed for Shure microphones, providing excellent plosive and wind protection.
- Movo Foam Windscreen: An affordable option that fits snugly over the SM7DB.
Tips for Optimal Use
Ensure the windscreen or pop filter is positioned correctly—about 1-2 inches from the microphone capsule. Regularly clean or replace screens to maintain sound quality. Experiment with different screens to find the best balance between plosive reduction and natural sound reproduction.
Conclusion
Choosing the right plosive and wind protection for the Shure SM7DB is essential for achieving professional-quality recordings. Foam windscreens, pop filters, and outdoor windshields each offer unique benefits. By selecting the appropriate screen and positioning it correctly, you can greatly improve your audio clarity and reduce unwanted noise.