How to Sidechain Vocal Sibilance for a Smoother Vocal Track

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Vocal recordings often contain sibilance—harsh ‘s’ and ‘sh’ sounds—that can make a track sound harsh or distracting. Sidechaining these sibilant sounds helps create a smoother vocal mix, improving overall clarity and listening experience. In this article, we’ll explore how to effectively sidechain vocal sibilance.

Understanding Sibilance and Sidechaining

Sibilance occurs naturally in human speech, but excessive sibilance can be problematic in a mix. Sidechaining involves using a compressor triggered by a specific sound to reduce the volume of another sound dynamically. When applied to vocals, sidechaining can tame harsh sibilant sounds without affecting the rest of the vocal performance.

Steps to Sidechain Vocal Sibilance

Follow these steps to sidechain vocal sibilance effectively:

  • Identify the Sibilant Sounds: Use a de-esser plugin or manual editing to pinpoint the harsh ‘s’ sounds.
  • Insert a Compressor: Place a compressor on the vocal track or a dedicated sibilance bus.
  • Set the Sidechain Input: Route the trigger signal—often a duplicate of the vocal with only sibilance—to the compressor’s sidechain input.
  • Adjust Threshold and Ratio: Set the compressor’s threshold so it activates only during sibilant sounds. Use a high ratio (e.g., 4:1 or higher) for more control.
  • Fine-Tune Attack and Release: Use a fast attack to catch sibilance quickly, and adjust the release for natural-sounding reduction.

Additional Tips for Better Results

To achieve the best outcome, consider these tips:

  • Use a Dedicated De-Esser: Specialized de-essers are designed to target sibilance precisely, making sidechaining easier.
  • Automate When Needed: For complex tracks, automate the compressor settings or de-esser thresholds for more control.
  • Listen Critically: Always listen in the context of the full mix to ensure natural vocal sound.
  • Combine Techniques: Use EQ cuts alongside sidechaining for more transparent sibilance reduction.

Conclusion

Sidechaining vocal sibilance is a powerful technique to create a smoother, more polished vocal track. By understanding how to identify sibilant sounds and properly set up sidechain compression, you can significantly improve your vocal mixes. Experiment with settings to find the perfect balance for your project.