Fix AI Audio — Repair AI-Generated Music

Fix AI Audio works with output from any AI music generator — Suno, Udio, Stable Audio, MusicGen, and others. The same tools apply whichever model produced the audio.

AI music generators decode audio from a compressed latent representation. Most current models — Suno v3, Udio v1.5, Stable Audio 2 — operate at limited internal sample rates and roll off frequencies above ~14 kHz aggressively. Their decoders also introduce phase-incoherent texture in the upper midrange that producers call 'AI sheen' or metallic warble. Brighten lifts what is left of the top end, but it cannot recreate content the decoder threw away, and no tool can strip the warble out of a finished mix. AI Deep Repair via Cloud Assist works on what a restoration model can fix: clipping, tonal balance, reverb, dynamics and stereo width.

On your device: a dull top end (Brighten), flat drums (Punch) and steady background hiss (Clean). With Cloud Assist, AI Deep Repair also works on heavy clipping, harsh or muddy tone, too much reverb, flat dynamics and a narrow stereo image. Metallic warble and spectral holes come from the generator's decoder; Brizm does not remove them.

Brighten, Punch, and Clean are signal-processing modules — a gentle exciter, a transient shaper, and a spectral noise gate — that run instantly on your device. They do not use AI. AI Deep Repair sends the file to Cloud Assist and runs a generative restoration model trained on music paired with simulated clipping, EQ, dynamics, reverb and stereo problems. Start with the instant modules; reach for AI Deep Repair when the track is clipped, muddy, too wet or too narrow, and preview 30 seconds first.

Both pages run the same processing. Fix AI Audio explains the problems typical of AI-generated music and which control helps with each. The Audio Enhancer is for any recording and adds an optional upsampling step for files that have lost their high frequencies.

The instant repair (Brighten, Punch, Clean) runs entirely on your device — files never leave your machine. AI Deep Repair uses Cloud Assist — your file is processed securely; your upload is deleted when processing finishes, and results are kept for 24 hours (30 days with an active subscription), then deleted automatically.

Latent-space decoding leaves fingerprints

Modern AI music generators — Suno, Udio, Stable Audio, MusicGen — do not produce audio samples directly. They produce a compressed sequence of tokens or latent vectors that a neural decoder maps back to waveform. The decoder is the source of most artifacts you hear. To stay tractable at training scale, decoders are typically built on top of neural audio codecs like EnCodec or Descript Audio Codec; these codecs are themselves lossy, designed to squeeze a 44.1 kHz stereo signal into a few kilobits per second. The codec throws away high-frequency detail above roughly 14 kHz, smears phase information in the upper midrange, and collapses subtle stereo cues that don't survive the compression.

This is why the same flavour of artifact shows up across vendors. The dull, slightly hazy top end ("AI sheen"). The metallic ringing on sustained vocals. The brittle, slappy quality on AI-generated cymbals and hi-hats. The narrow stereo image even on supposedly stereo output. These are not Suno bugs or Udio bugs — they are properties of the codec layer that almost every commercial generator currently sits on.

Why old-school mastering plugins fail here

Standard mastering chains assume the input is a clean human recording that needs polishing — a high-shelf for air, a bus compressor for glue, a limiter for level. Pointed at AI-generated audio they amplify the artifacts rather than mask them. A high-shelf above 12 kHz pushes up codec ringing instead of restoring real top end. A wideband compressor squashes the already-collapsed transients further. Stereo wideners on a mono-collapsed image just add comb-filter colour. Fix AI Audio keeps each control light and lets you A/B it against the original, so you can hear whether it helps or just turns the artifacts up. If you still want to master the cleaned-up file afterwards, send it through Auto Master next.

Brighten — lift the remaining top end

The decoder rolls off content above roughly 14 kHz hard. A plain high-shelf can't put it back because the energy is gone, and neither can Brighten: it is a gentle exciter that lightly saturates the content above about 8 kHz and mixes it back in. That adds presence to a dull mix, but it also lifts any codec ringing in that range. Move the slider gently and A/B against the original.

Punch — transient shaping for flat AI drums

AI drum kits often sound flat because the codec smears the initial transient. Punch is a transient shaper: it turns fast attacks up relative to what follows them, so kicks and snares cut through again. It also adds distortion to sustained bass notes, so it starts switched off. Turn it on for drum-heavy tracks and A/B before you export.

Clean — spectral noise gate

Many AI tracks carry a faint bed of broadband hiss — partly from codec quantisation, partly from the generation process. Clean measures the noise floor in the quietest parts of the track and turns down whatever stays below it. It works best when the track has quiet passages to measure; on a dense mix with no gaps it cannot tell hiss from music and may dull quiet detail. Use it when the silence between phrases sounds slightly fizzy, and keep the slider low.

AI Deep Repair — heavier damage via Cloud Assist

When the damage is heavier — clipping, harsh or muddy tone, too much reverb, a narrow stereo image — AI Deep Repair sends the file to Cloud Assist and runs a generative restoration model trained on music paired with simulated versions of those problems. It is not trained on AI-generated music specifically and does not remove decoder artifacts such as metallic warble, so preview 30 seconds before processing the full track. Your upload is deleted when processing finishes, and results are kept for 24 hours (30 days with an active subscription), then deleted automatically. For broader audio repair beyond AI-specific issues, browse the audio repair toolkit.