SpectralDiff is an audio plugin designed to analyze and compare two audio files by detecting differences between them. It calculates the spectral difference in real time and visually represents this as a spectrum, allowing users to see where the two audio signals diverge during playback. This dynamic analysis helps identify subtle variations or confirm if the files are identical at any given moment.

This plugin is particularly useful for audio professionals who need to verify the consistency of multiple versions of a track. Whether comparing two bounces of a mix to determine if any changes were made or examining various received versions of a recording, SpectralDiff provides clear visual feedback. This makes it easier to spot even minor alterations that might otherwise go unnoticed, supporting precise audio editing and quality control.

SpectralDiff operates seamlessly during playback by updating its spectral difference display in real time, offering immediate insight into the relationship between two audio signals. Its straightforward interface and practical application make it a valuable tool for anyone involved in mixing, mastering, or audio post-production who needs to ensure audio files match or to identify discrepancies quickly and accurately.