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Remove Background Noise API

Remove hiss, hum, fans, traffic and room noise from speech recordings while keeping the voice clear. DeepFilterNet, up to 10 minutes per file, MP3 output, 15 credits per minute of audio (≈ $0.015 per minute on Starter).

POST/v1/audio/denoise

Multipart form: send either a file or a URL.

Field	Type	Required	Description
audio	file	one of	Audio file (wav/mp3/m4a/flac/ogg/webm), max 10 minutes.
audio_url	string	one of	Public URL of the audio instead of an upload.

Example

curl -X POST https://api.pixelapi.dev/v1/audio/denoise \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "audio=@interview.wav"

curl https://api.pixelapi.dev/v1/audio/denoise/GENERATION_ID -H "Authorization: Bearer YOUR_API_KEY"

GET/v1/audio/denoise/{id}

Poll until status is completed, then download the MP3 from output_url.

Common uses

• Podcast and interview cleanup
• Voiceovers and screen recordings
• Call recordings before transcription
• Video soundtracks: extract the audio, denoise, and put it back in your editor

Pricing

15 credits per minute of input audio, i.e. 0.25 credits per second, minimum 1 credit.

Get an API keyTool overviewText-to-Speech API

FAQ

How much does audio denoise cost?

15 credits per minute of input audio (0.25 credits per second, minimum 1 credit). 1 credit = $0.001 on the Starter plan.

How long can a file be?

Up to 10 minutes per request.

Does it work on music?

It is designed for speech. For music, use stem separation to isolate parts instead.

Which model is used?

DeepFilterNet.