Introducing WaveSpeedAI Ace Step Audio Inpaint on WaveSpeedAI

Introducing ACE-Step Audio Inpaint: Precision Audio Editing Comes to WaveSpeedAI

Music producers, content creators, and audio engineers have long faced a frustrating reality: fixing a single problematic section in an otherwise perfect track often meant regenerating the entire piece or wrestling with complex DAW workflows. Today, that changes with ACE-Step Audio Inpaint, now available on WaveSpeedAI.

Built on the groundbreaking ACE-Step foundation model—described by its creators as the effort to “build the Stable Diffusion moment for music”—Audio Inpaint brings surgical precision to audio editing. Select exactly the section you want to modify, specify your changes, and let AI seamlessly blend the new content with your existing audio.

What is ACE-Step Audio Inpaint?

ACE-Step Audio Inpaint is a specialized audio-to-audio model that enables localized editing within existing audio tracks. Rather than regenerating an entire song to fix one verse or adjust a specific instrumental passage, you can now target precise time ranges for modification while keeping everything else intact.

The technology leverages flow-based manipulation principles, using noise addition and masking during the generation process to modify specific elements—whether that’s vocals, lyrics, or style—while preserving the surrounding audio. The result is seamless transitions that blend naturally with your original track.

What sets ACE-Step apart from traditional audio editing? The underlying architecture was designed from the ground up as a foundation model for music AI. It synthesizes up to 4 minutes of audio in just 20 seconds on an A100 GPU—15 times faster than LLM-based alternatives. This speed, combined with its precision editing capabilities, makes it uniquely suited for iterative creative workflows.

Key Features

• Precise Segment Editing: Define exact start and end times to edit only the specific range you need. No more regenerating entire tracks for small fixes.

• Seamless Audio Blending: New content merges naturally with surrounding audio, creating smooth transitions that are virtually undetectable.

• Flexible Timing Control: Choose whether your time markers are relative to the beginning or end of the track—essential for workflows where you’re adjusting content near the end of a piece.

• Style & Lyric Adaptability: Add new instrumentation, apply different effects, or rewrite lyrics while preserving the overall flow and musical identity of your track.

• Controlled Variation: Fine-tune how much the regenerated section diverges from the original using seed parameters. Reproduce exact results or explore creative variations.

• Non-Destructive Workflow: Your original audio remains unchanged, allowing free experimentation without fear of losing your source material.

Real-World Use Cases

Production Fixes and Refinements

Caught a mispronounced lyric after the session ended? Audio Inpaint lets you regenerate just that section rather than booking another recording session. This is particularly valuable for podcast producers, audiobook narrators, and musicians working with limited studio time.

Lyric Rewrites and Localization

Content creators increasingly need to adapt audio for different markets or contexts. Audio Inpaint enables targeted lyric modifications—changing a verse, updating a reference, or adapting content for a specific audience—while maintaining the original singer’s style and the track’s overall cohesion.

Remix and Style Experiments

Producers can replace or restyle specific segments without affecting the rest of their composition. Want to hear how that bridge sounds with a different instrumental arrangement? Regenerate just that section while keeping your verse and chorus intact.

Audio Storytelling and Post-Production

Video editors and content creators working with voiceovers or sound design can modify specific audio segments within fixed-length clips. This is invaluable for narrative podcasts, documentary work, and any production where audio timing is critical.

Iterative Creative Development

Unlike “set it and forget it” approaches, Audio Inpaint supports the kind of granular, iterative refinement that professional creators demand. Make incremental adjustments, compare variations, and dial in exactly the sound you’re seeking.

Getting Started on WaveSpeedAI

Accessing ACE-Step Audio Inpaint through WaveSpeedAI is straightforward:

1. Upload Your Audio: Provide an existing audio file in MP3 or WAV format—this becomes the canvas for your edits.

2. Define Your Target Range: Specify start and end times (in seconds) for the section you want to modify. You can set these relative to either the beginning or end of your track.

3. Set Style Tags: Define the target style or mood for the regenerated section (e.g., lofi, hiphop, trap, chill). This guides the model toward your desired output.

4. Add Lyrics (Optional): If you’re modifying vocals, provide new lyrics for the edited section.

5. Generate: Submit your request and receive your edited audio, with the new content seamlessly integrated into your original track.

The API is simple and direct—no complex configurations or specialized knowledge required. WaveSpeedAI handles the inference infrastructure, delivering results with no cold starts and consistent performance.

Pricing That Makes Sense

At $0.0002 per second of generated audio, ACE-Step Audio Inpaint offers accessible pricing for both experimentation and production use. A 30-second edit costs just $0.006—pennies for professional-grade audio manipulation.

This per-second pricing model means you pay only for what you generate. Quick fixes cost almost nothing; longer creative sessions remain affordable.

Why WaveSpeedAI?

WaveSpeedAI provides the infrastructure that makes AI-powered audio editing practical for real workflows:

• No Cold Starts: Your requests begin processing immediately, without waiting for model initialization.
• Consistent Performance: Reliable inference times let you integrate audio editing into time-sensitive production workflows.
• Simple REST API: Clean, well-documented endpoints that integrate with your existing tools and scripts.
• Affordable Pricing: Pay-per-use pricing without subscriptions or minimum commitments.

Start Creating

ACE-Step Audio Inpaint opens new possibilities for anyone working with audio—from independent musicians and podcast producers to professional studios and content teams. The combination of surgical precision, seamless blending, and fast inference makes it practical for both quick fixes and extended creative sessions.

Ready to experience precision audio editing? Try ACE-Step Audio Inpaint on WaveSpeedAI and discover what’s possible when you can edit exactly what you need—and nothing more.

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