AudioSR Online:
AI audio upscaler and restoration

Run AudioSR from the browser without Python, CUDA, checkpoints, or local GPU setup. Regenerate high frequencies above a selected cutoff while preserving lower bands.

SELECT RESTORATION TYPE
Supported: suno.com, udio.com, flowmusic, topmediai.com, mureka.ai, sonauto.ai, youtube
Or

Upload audio files

Drag & drop or click to browse (multiple files supported)

Supports: MP3, MPEG, MP2, MPGA, WAV, WAV, AIFF, AIF, AIFF, AIF, FLAC, AAC, OGG, OPUS, M4A, MP4, WEBM, WMA, ALAC, AMRMax size: 50MB.

How AudioSR Online Works

Import Audio

Upload a file or import a link from Suno, Udio, or Producer AI.

Regenerate High Frequencies

The AudioSR model predicts missing high-frequency content above your selected cutoff.

Download Restored WAV

Export a cleaner, higher-fidelity result ready for mixing or mastering.

What Is AudioSR?

AudioSR (audio super-resolution) is a reconstruction method that restores bandwidth lost by compression, low-bitrate exports, and degraded sources. Instead of boosting EQ, it estimates plausible harmonic and transient detail that should exist in upper frequencies.

The original AudioSR research paper is AudioSR: Versatile Audio Super-resolution at Scale. You can also browse examples on the official project page.

Run the AudioSR audio upscaler in the browser UI without local setup, GPU configuration, or manual pipeline scripts. Restore old and damaged music recordings, or use it as a model-specific audio restoration workflow for AI-generated tracks.

AudioSR Example: Regenerated High Frequencies

Compare the original and AudioSR restored versions. Notice how upper-band detail is reconstructed while keeping low frequencies stable.

Original Spectrogram

Example: AudioSR restoration on compressed music

Trusted by 15,000+ music lovers

Jordi avatar

Jordi

5 out of 5 stars

Audio Super Resolution

I've been loving the app. The audio restoration works amazing on my suno songs

AristA avatar

AristA

5 out of 5 stars

Acapella extraction

Neural Analog makes me feel like a monkey with an AK-47, in the best way possible

Vicki (People Like Us) avatar

Vicki (People Like Us)

5 out of 5 stars

2600+ songs saved

It worked! Well done :) Many thanks :))))

Henry avatar

Henry

5 out of 5 stars

Crowd removal with SAM Audio

Wow thank you so much i upscale videos and take out live recordings from music because of my autism i hate the crowd

Dan Campbell ~Riffster avatar

Dan Campbell ~Riffster

5 out of 5 stars

Amazing tool for audio. Clean, simple, and effective. I would spend hours in RX to get the same results. Give it a try. I can save you hours of production time.

H

Hasina

4 out of 5 stars

Useful app besides AudioSR that needs improvement for AI vocals high frequencies restoration. It sometimes adds a straight line at 10kHz or reduces the 5-10kHz volume. I only got the right correction on my 5th restoration of the same vocal.

TG

The Grim Tower

5 out of 5 stars

Love it! Makes everything crisp!

SH

Shrunken Head

5 out of 5 stars

IT'S GREAT

F

Francisco

5 out of 5 stars

Sensacional

TS

Tommi, Studionet

5 out of 5 stars

Highend services!

Listen to tracks made by our users

AI audio enhanced with Neural Analog

Why Use This Audio Upscaler?

Model-Based Regeneration

AudioSR does not just amplify highs. It reconstructs probable high-frequency structure from learned audio priors.

Cutoff-Controlled Audio Restoration

Choose your frequency cutoff and regenerate only the upper spectrum while preserving lower bands from the source.

Run AudioSR Online

Simple online interface for AudioSR, including upload, configuration, preview, and high-quality export.

Frequently Asked Questions

Can I upscale MP3 samples before using them in my track?

Yes. If the source is MP3 or otherwise degraded, upscale or restore the sample before time-stretching, pitch-shifting, saturation, or heavy effects. That reduces artifact amplification later in production.

Start with MP3 to WAV upscaling, then download the restored file from Studio for use in your DAW.

What's the difference between upscaling and mastering AI tracks?

Upscaling and mastering do different jobs. Upscaling reconstructs missing data and reduces MP3 artifacts, while mastering applies EQ, compression, and loudness optimization.

Always upscale MP3 files first, then master the restored WAV for professional release.

Once your audio is restored, the Automatic Mastering tool can polish it for professional release, with intelligent loudness optimization tailored to your track.

Will upscaling add noise or just remove MP3 artifacts?

Neural MP3 upscaling reconstructs coherent signal, not random noise. It can reduce compression artifacts while rebuilding harmonic content above the damaged bandwidth of the source.

Start with MP3 to WAV upscaling for general music cleanup, or use Audio Restoration to compare multiple restoration models.

Is MP3 upscaling free for producers?

You can test MP3 upscaling on short samples for free. Full tracks and stems use processing minutes because the models run on GPUs. Subscribers get included weekly processing minutes, and you can also buy extra processing minutes.

Try the MP3 to WAV upscaler, then check plan limits before running large batches.

Why do AI generators output 16kHz MP3s with artifacts?

Many AI-generated tracks sound capped or artifacted because training data and platform exports often include lossy compression. The model can learn bandwidth limits, swirly highs, brittle cymbals, and other MP3 artifacts.

Use MP3 to WAV upscaling or Audio Restoration to reduce artifacts and rebuild missing high-frequency detail before mastering.

Will MP3 upscaling fix stems that sound muffled?

It can help when the stem sounds muffled because it lost high-frequency detail during compression or separation. Run restoration on the stem before heavy effects, pitch shifting, or layering.

If the problem is low-end muddiness, masking, or a bad stem balance, use EQ, volume, or another stem split in Studio instead of expecting upscaling to fix the mix.

Does it work for old codecs like WMA or low bit-depth 8-bit audio?

Yes, restoration can work on old codecs and low bit-depth audio after the file is decoded into an audio signal. Results depend on how much usable information remains in the source.

Try a short sample with Audio Restoration. For retro game and sound-effect material, see the UniverSR sound effects guide.

Do you support 48 kHz upsampling?

Yes. Support depends on the model. UniverSR, AudioSR, and FlashSR upscale low resolution audio to 48 kHz (super resolution). The 'Music Upscaler' restoration algorithm keeps 48 kHz sources at 48 kHz, and restores 44.1 kHz-or-lower sources at 44.1 kHz.

For the model-level details, read the UniverSR sample-rate guide or compare models in the restoration docs.

Can I run restoration multiple times for better results?

Yes, you can run restoration more than once. You can change the selected Source to run another pass on already restored audio, and batch imports support an 'Iterative restoration' toggle that selects the latest restored version of each file.

Do this in Studio by selecting the restored version as the source before running another restoration. Stop when the result improves less than the artifacts it introduces.

Run AudioSR Online on Your Track

Use Neural Analog to process your audio with online AI upscaling and restoration, without local GPU setup.