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Lossy-Audio Fixer
Reconstruct audio to lossless from severely damaged
MP3, OGG, and other lossy-compressed audio files
Heads Up!
Lossy audio is closer than you think
Accustomed
To reduce bandwidth and file size, around 71.4% of audio on the internet is lossy-compressed. Most digital audio we listen to every day, including the soundtracks in videos, is encoded in a lossy format.
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Audio formats and containers
Disguised
Lossy audio isn’t limited to MP3 or OGG files. In one popular music app, we found that about 23% of so-called FLAC "lossless" downloads were actually lossy content wrapped in a FLAC container.
Use Dango online lossless checker
Check my files
What exactly does lossy audio damage?
You don’t always hear the full picture
Computing spectrum...
Lossless audio
Crisp and clear
Computing spectrum...
Lossy audio
Muffled and hazy
Lossy audio codecs were originally designed to shrink file size.
They work based on a "psychoacoustic model".
They permanently remove details the model believes you "can’t hear".
High-frequency loss
By removing high frequencies the ear is less sensitive to, lossy codecs greatly reduce file size, at the cost of obvious high-frequency loss and a muffled, hazy sound at strong compression levels.
Energy distortion
Lossy compression deletes low-level energy in the mid and low frequencies, leaving grainy spectra and cheese-like gaps when viewed in a spectrogram.
Sound quality degradation
Compression not only damages transients and overtones, it also introduces new artifacts never present in the original audio, like pre-echo, ringing, and bubbling noises.
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Psychoacoustics & compression algorithms
Last resort
For irreplaceable recordings
In most cases, finding the original lossless source is still the best option.
When every lead has run dry, Dango gives you one last option, a purpose-built lossy audio restoration engine for those who demand the absolute best.
True audio reconstruction
Only at Dango
Harmonic reconstruction
Energy reconstruction
Phase reconstruction
Most current solutions can only reconstruct simple content as "noise". They can’t generate musically meaningful high-frequency detail. Dango truly understands the song, rebuilding the complex harmonic structure of any instrument.
Computing spectrum...
Accurate
Fix what’s broken, add nothing extra
Many systems hallucinate unstable high frequencies, leading to unexpected artifacts. Dango’s network uses a unique confidence-point system to stay faithful to the source, avoiding extra artifacts and secondary damage.
Fast
For beginners and pros alike
Whether you have audio expertise or not, Dango has you covered. With one-click upload and automatic repair for any lossy codec format, or fine-grained controls over bands, strength, harmonics, and phase.
What is Dango suitable for?
Archival restoration
For rare recordings, historic archives, and unknown bootlegs that never had a true lossless version, Dango is your last line of defense.
Creative work
When your only video soundtrack, vintage effect, or sample exists only in lossy form, Dango keeps it from becoming the weak link in a high-quality project.
Audio datasets
Training audio AI models on lossy files severely harms final performance. Use Dango to protect the quality of your neural networks.
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Dango Open Platform
Word is cheap
Upload your own song and try it out
Try for free