Using Eq to Manage Plosives and Breath Sounds in Dialogue Tracks

March 1, 2025

By: Audio Scene

Recording clear and professional dialogue is essential in audio production, especially for podcasts, films, and radio. Two common issues that can detract from audio quality are plosive sounds and excessive breath noises. Using equalization (EQ) effectively can help manage these problems, resulting in cleaner, more intelligible dialogue tracks.

Understanding Plosives and Breath Sounds

Plosives are harsh popping sounds that occur when pronouncing consonants like p, b, t, and k. Breath sounds are the ambient noises produced during speech, such as heavy inhaling or exhaling, which can be distracting if too prominent.

Using EQ to Reduce Plosives

To minimize plosive sounds, apply a high-pass filter using EQ. This filter cuts off low-frequency energy that causes the boominess and popping. Typically, setting the cutoff around 80-100 Hz is effective, but it can vary depending on the voice and recording setup.

  • Insert a high-pass filter on the dialogue track.
  • Adjust the cutoff frequency to reduce the plosive impact without affecting the natural tone of the voice.
  • Use a narrow bandwidth to avoid removing too much of the vocal’s body.

Managing Breath Sounds with EQ

Breath noises can be managed by attenuating specific frequency ranges where these sounds are most prominent. Typically, breath sounds are more noticeable in the 200-300 Hz range, but they can also contain energy in higher frequencies.

  • Identify the frequency range where breath sounds are most prominent using a spectrum analyzer or EQ sweep.
  • Apply a narrow cut (notch filter) to reduce these frequencies without dulling the voice.
  • Use automation to target breaths only when necessary, preserving natural speech rhythm.

Additional Tips for Effective EQ Use

While EQ is powerful, it should be used judiciously. Over-EQing can make dialogue sound unnatural or thin. Combine EQ with other techniques like pop filters during recording and proper microphone placement to minimize issues at the source.

Regularly listen to your edits on different speakers and environments to ensure your EQ adjustments enhance clarity without sacrificing naturalness. Properly managed EQ can significantly improve the quality of dialogue tracks, making your audio projects more professional and engaging.