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AI Mastering

MP3, WAV, FLAC, AAC/M4A, OGG, Opus, WebM, WMA. Up to 100 MiB.
Fixed mastering chain: loudness normalised to -14 LUFS (the Spotify / YouTube target), a 3:1 compander above -20 dB to even out dynamics, and a gentle high-shelf boost at 8 kHz. True-peak stays below -1 dBTP. No adjustable knobs; the preset is applied as-is.
~200 tokens per use

Runs ffmpeg's loudnorm, compander and EQ filters in sequence. For stem-aware control, use a DAW; this preset targets streaming platforms with a single click.

How to Use AI Mastering

1

Open AI Mastering

Open AI Mastering on Rewind.ai. No account needed to start.

2

Add your input

Enter your text or upload a file, then set any options AI Mastering offers.

3

Get the result

AI Mastering processes your request and returns the result. Download it, copy it, or share the link.

Use this tool via API

Call this tool straight from your own scripts. The endpoint follows the OpenAI REST format and signs requests with a bearer token, so client libraries you already use keep working. You are billed the same token rate as the web app.

curl -X POST https://api.rewind.ai/v1/audio/master \
  -H "Authorization: Bearer sk-rewind-..." \
  -F [email protected]

AI Mastering FAQ

AI Mastering on Rewind.ai is a free AI tool. There's no charge and no sign up needed to start.

Yes. You get 2,500 free tokens per day to use AI Mastering and every other tool on Rewind.ai. A free account raises that to 5,000 tokens/day. Token packs start at $5.

AI Mastering sends your request to an AI model and shows the result on the page. Some models run on our own GPUs, others through their providers.

No. You can use AI Mastering right away without signing up. A free account doubles your daily usage to 5,000 tokens and saves your history.

Anonymous users get 2,500 tokens/day. Free accounts get 5,000 tokens/day. Tokens reset every 24 hours. Each generation costs ~100-5,000 tokens depending on the operation.

We don't sell your data or use it to train models, and we delete it on request.

In most cases, yes. What you generate is yours to use, and commercial use follows our Terms and the license of the model that made it. Don't use other people's likeness or copyrighted material without permission.

AI Mastering lets you start on free daily tokens and pay only when you need more, with token packs from $5 or a monthly plan.

AI Mastering uses the model shown in its model picker, or Rewind's default model for the task when the page has no picker. We update to newer models as they ship.

Yes. AI Mastering works in any mobile browser, and the layout adapts to your screen size.

Sign up for a free account to get 5,000 tokens/day, double the anonymous limit. Or buy token packs starting at $5 for 200,000 tokens. See /pricing/ for all options.

Yes. After you generate content, you can download it, copy it, or share it via a unique link. Signed-in users can also view their generation history.

Sign up free for 10,000 tokens

Create Free Account

No credit card required

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