Up to 200 MB. Decoded at 48 kHz on this device. Long recordings may exceed the browser memory limit.
Manual polarity correction is not time alignment, source separation or frequency-dependent phase reconstruction.
Phase Repair
Correct reversed channel polarity and remove DC offset. Listen to the original and corrected recording before exporting.
How it works
Choose a recording
Open a mono or stereo audio file. Nothing is uploaded.
Adjust and listen
Set the controls, process, and compare with the original. Keep only changes that help your recording.
Save a new WAV
Download a 24-bit WAV with your plan access. Your original file is unchanged.
Frequently asked questions
What are the limits?
Manual polarity correction is not time alignment, source separation or frequency-dependent phase reconstruction.
Does it master my song?
No. This is a focused repair step, not loudness mastering. Only output that would clip is attenuated, and that amount is shown.
Upload a track to
instantly master
Choose a file or drag it here
Supports WAV · FLAC · MP3 · M4A · AIFF
Your next release starts here