Understanding Plosives and Sibilance

by

The Neumann Tlm 102 is a popular microphone among recording engineers and vocalists for its clear sound and compact design. However, like many condenser microphones, it can be susceptible to plosives and sibilance, which can affect the quality of recordings. Proper techniques and accessories can help mitigate these issues effectively.

Understanding Plosives and Sibilance

Plosives are sudden bursts of air caused by pronunciation of words with ‘p’, ‘b’, ‘t’, and ‘d’ sounds. Sibilance refers to harsh, hissing sounds produced by ‘s’, ‘sh’, and similar consonants. Both can create unwanted noise and distort the clarity of vocal recordings if not properly managed.

Techniques to Prevent Plosives and Sibilance

Use a Pop Filter

A high-quality pop filter acts as a barrier between the singer and the microphone, dispersing airflow from plosive sounds. Position the pop filter about 2-3 inches in front of the Tlm 102, ensuring it does not touch the microphone grille.

Adjust Microphone Placement

Placing the microphone slightly off-axis or below the mouth can significantly reduce plosive impact. Experiment with angles and distances to find the optimal position that captures clear vocals while minimizing unwanted noise.

Use a Windscreen or Foam Cover

Adding a foam cover over the Tlm 102 provides additional diffusion of airflow, helping to reduce both plosives and sibilance. Ensure the foam fits snugly without obstructing sound quality.

Post-Processing Techniques

Even with preventative measures, some sibilance may remain. Use equalization (EQ) to attenuate harsh frequencies typically around 5-8 kHz. De-esser plugins can also target and reduce sibilant sounds dynamically during mixing.

Summary

Preventing plosives and sibilance with the Neumann Tlm 102 involves a combination of proper technique, accessories, and post-processing. Employing a pop filter, adjusting microphone placement, and using windscreens are effective first steps. When necessary, digital tools can refine the sound further, ensuring professional-quality recordings.