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Stable Audio 3 Medium Base

Stable Audio 3 Medium Base audio inpainting is the foundational 1.4 billion parameter checkpoint for editing or filling selected stereo audio segments guided by text prompts.

Input

Fields marked * are required. Review the price before generating.

Text description guiding how the masked region is regenerated.

Source audio. Only the masked region is regenerated.

Uploading a file needs an account. Create accountMP3, WAV · up to 50 MB

Start of the region to regenerate, in seconds.

End of the region to regenerate, in seconds.

Additional settings

Text description of qualities to avoid in the output.

Number of sampling steps. Base (non-distilled) checkpoints typically need ~50 for good quality.

Classifier-free guidance scale. Higher values follow the prompt more strictly; ~7.0 is a good starting point for base checkpoints.

Random seed for reproducible outputs. Omit for a random seed.

If True, the prompt will be expanded using an LLM for more detailed and higher quality results.

Container format for the generated audio output.

Audio bitrate for compressed output formats (e.g., mp3, aac, opus). Format e.g. '192k' or '320k'. Ignored for lossless formats (wav, flac).

Price$0.09 / run

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API code for this input

Complete the required fields and fix input errors to see API code.

How to use Stable Audio 3 Medium Base

Getting started

Create, transform, repair or extend music and sound with Stable Audio 3 Medium Base.

Review your result

Listen to the complete output, including edit boundaries, stereo balance, noise and the ending.

Inputs and settings

Text mode takes prompt and duration from 1 to 380 seconds. Audio-to-audio also takes an uploaded audio_url and init_noise_level.

Inpainting replaces only mask_start_seconds to mask_end_seconds; the end must follow the start and stay within the uploaded source.

Outpainting needs a positive extend_seconds_before or extend_seconds_after. Raywake checks that the source and extensions fit within 380 seconds.

Choose MP3, WAV, FLAC, OGG, Opus, M4A or AAC. Bitrate applies to compressed formats; base checkpoints expose guidance and more sampling steps.

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