Fix audio that plays in one ear only
Drop a stereo file. The levels, the phase and the verdict show at once, and one click fixes it.
- Runs on your device
- No sign-up
- Works offline after a visit
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How to fix audio that plays in one ear
- Drop the stereo file on the box.
- Read the verdict. The fix that matches it is already selected, and you can pick another.
- Choose stereo or mono output, then download the WAV.
Questions
What do the verdicts mean?
A channel below −60 dB while the other is louder is reported as silent. Channels that cancel out have a correlation below −0.5, which means one plays the opposite of the other. A difference above 3 dB between the levels is reported as one side louder.
What does "out of phase" do to sound?
When both channels carry the same sound with opposite signs, the two cancel when they are heard together, most of the sound disappears in a mono player. Inverting one channel fixes this.
Why does mono output average the channels?
A mono file is one channel, so the two channels are averaged. If the channels are out of phase, one is flipped first, so the average does not cancel.
Is my audio uploaded?
No. The channels are read and fixed in your browser, and nothing is sent anywhere. Only the first two channels of a multichannel file are used.
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