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Sound Plug
Drop in a track. It is balanced and mastered at the best quality straight away, then you hear the original and the master side by side.
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Drop a song here, or tap to choose
MP3, WAV, M4A, AAC, OGG, FLAC · up to about 300 MB
Choose audio file
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Reading the file
Measuring loudness and balance
Balancing the tone
Setting the level
Applying glue and limiting
Final peak safety
Use the player at the bottom to switch between Original and Master while it plays; it keeps your place. “Match volume” is on so you hear the tone and clarity difference rather than just the loudness. Turn it off to hear the true level change.