Navigate to Effect > Volume and Compression > Amplify (in newer versions) or simply Effect > Amplify .
Since Amplify is pre-installed, you can access it immediately within the software:
You can enter a specific decibel (dB) value or use the slider to increase (positive number) or decrease (negative number) the volume.
The search for an often stems from a common misconception: Amplify is actually a built-in feature of Audacity , meaning you do not need to download or install a separate plugin to use it . It is part of the core software package available on the official Audacity website .
However, if you are looking for advanced volume control beyond the standard tool, such as specialized channel amplification or VST-based gain control, there are specific plugins and techniques you should know.