Cubase Tutorial: Noise Gates and Noise Reduction for Voice and Dialog

Introduction

In this tutorial, we will explore how to effectively use noise gates and noise reduction techniques for voice and dialog in Cubase 9. These tools are essential for improving audio clarity and eliminating unwanted background noise, making them invaluable for voice-over work. We'll also introduce a free noise reduction plugin from Cockos that can enhance your audio projects.

Step 1: Setting Up Your Project in Cubase

• Open Cubase 9 and create a new project or load an existing one.
• Import your audio track that contains the voice or dialog you want to edit.
• Ensure your audio levels are set correctly to avoid clipping.

Step 2: Applying a Noise Gate

• Select the audio track you want to work on.
• Click on the 'Insert' section of the track inspector.
• Choose the 'Noise Gate' from the list of available effects.

Configure the Noise Gate

• Adjust the Threshold: Set it to a level where only the desired audio (voice) passes through while the unwanted noise is cut off. Start at -30 dB and adjust as necessary.
• Set the Attack time: This controls how quickly the gate opens. A good starting point is around 10 ms.
• Adjust the Release time: This determines how quickly the gate closes after the audio drops below the threshold. Try 100 ms for a smooth transition.
• Use the Hold setting if necessary, to keep the gate open longer during quieter passages.

Step 3: Using Noise Reduction Techniques

• Download and install the Reaper Plugin Bundle from Cockos using the link in the description.
• Once installed, open Cubase and navigate to the 'Insert' section of your audio track.
• Select the noise reduction plugin from the list.

Configure the Noise Reduction Plugin

• Input Level: Adjust the input level to ensure the plugin receives a strong signal.
• Reduction Amount: Set the desired amount of noise reduction. Start with a moderate setting and listen for clarity.
• Frequency Selection: If applicable, use filters to target specific frequency ranges where noise is prominent.

Step 4: Fine-Tuning Your Audio

• Listen to the audio in context to ensure that the noise gate and noise reduction settings do not adversely affect the voice quality.
• Make adjustments to the Threshold, Attack, Release, and Reduction settings as necessary.
• Use automation if needed to adjust settings dynamically throughout the track.

Step 5: Exporting Your Final Audio

• Once you're satisfied with the edits, go to the main menu and select File > Export > Audio Mixdown.
• Choose the desired file format and export settings.
• Click Export and save your final audio file.

Conclusion

You have now learned how to utilize noise gates and noise reduction techniques in Cubase 9 to enhance voice and dialog recordings. By setting up your project, applying the noise gate and noise reduction plugin, fine-tuning your audio, and exporting your final product, you can significantly improve audio clarity. As next steps, consider exploring additional plugins or techniques to further enhance your audio editing skills.