Step-by-step Guide to Applying Dithering in Audacity and Reaper

March 15, 2025

By: Audio Scene

Audio editing often involves reducing the bit depth of a recording, which can introduce unwanted noise or distortion. Dithering is a technique used to minimize these artifacts, ensuring a cleaner sound. This guide walks you through applying dithering in two popular digital audio workstations: Audacity and Reaper.

What is Dithering?

Dithering adds a small amount of noise to an audio signal during bit depth reduction. This process helps mask quantization errors and results in a more natural sound, especially when converting high-resolution audio to lower bit depths like 16-bit for CD quality.

Applying Dithering in Audacity

Follow these steps to add dithering in Audacity:

  • Open your project in Audacity.
  • Go to File > Export.
  • Select your desired format, such as WAV or MP3.
  • In the export window, click on Options.
  • Choose the desired bit depth (e.g., 16-bit).
  • Enable the Dither option from the dropdown menu.
  • Click OK and then Save.

Audacity’s dithering options include different algorithms like Rectangular, Triangular, and Shaped. Triangular dithering is commonly recommended for most applications.

Applying Dithering in Reaper

Reaper provides a flexible way to apply dithering during rendering:

  • Open your project in Reaper.
  • Click on File > Render.
  • In the render dialog, choose your output format (e.g., WAV).
  • Set your desired sample rate and bit depth (e.g., 16-bit).
  • Scroll down to the Options section.
  • Check the box for Dither.
  • Select the preferred dithering algorithm, such as Triangular.
  • Click Render to finalize your file with dithering applied.

Reaper’s dithering options are available under the render settings, making it easy to ensure high-quality audio output when reducing bit depth.

Conclusion

Applying dithering is a crucial step in audio post-production, especially when exporting audio at lower bit depths. Both Audacity and Reaper offer straightforward options to add dithering, helping you maintain audio quality. By following these steps, you can achieve cleaner, more professional sound in your projects.