Audio Channel Repair
Inspect the levels of a mono or stereo recording, check stereo phase correlation, and repair one-sided audio. Duplicate a channel, swap left and right, extract either channel, or split an interview into separate mono WAV files.Read more ↓Show less ↑
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Frequently asked questions
How do I fix audio that only plays in one ear?
Inspect the recording to identify the channel with sound. Choose Left to both or Right to both to duplicate that channel into a stereo WAV. This does not recover sound that was never recorded in a missing channel.
Can I separate a dual-mono interview?
Yes. Split into two mono files exports the left and right channels as separate WAV files in a ZIP. This separates channels, not speakers who were already mixed together. Video inputs export audio only from the first audio stream.
What does negative phase correlation mean?
Negative correlation suggests that left and right may cancel when summed to mono. Use Mix to mono and listen before delivery. The mean correlation is a diagnostic aid, not a guarantee of mono compatibility. The tool supports mono and stereo recordings under 300 MB; processing stays on your device.
