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WhitePrint AudioEngine
What WhitePrint AudioEngine is
WhitePrint AudioEngine provides AI-powered audio analysis and mastering through a web interface and REST API. It can return analysis data, a mastered file, or both. Its BS.1770-4 analysis reports LUFS, true peak, loudness range, crest factor, spectral balance, and stereo width. Three independent AI models make mastering recommendations; users can review each model’s advice and the reasoning behind the combined recommendation. Mastering runs through 14 hybrid DSP stages, which are bypassed unless the AI directs their use. An A/B player lets users compare source and mastered audio, check before-and-after metrics, and download a WAV file. Inputs include WAV and FLAC, and direct processing is available from links to Google Drive, Dropbox, OneDrive, Amazon S3, and Google Cloud Storage; Suno and SoundCloud are also listed as URL sources. API routes cover full mastering, analysis, deliberation, and DSP-only processing. Submitted audio is deleted within 24 hours after job completion and is not used to train AI models. Plans range from a free tier to paid subscriptions, with a 14-day trial available.
Who it suits
Audio producers who want analysis and mastering in a browser, and engineers or labels handling regular or professional workloads, may find a suitable plan. Developers can use the REST API for applications, DAW plugins, distribution platforms, or CI/CD pipelines.
What it does well
- Analysis covers six loudness and sound characteristics.
- Review recommendations from three independent AI models.
- Compare original and mastered audio with an A/B player.
- Process audio from supported cloud-storage links.
- API offers four processing route types.
- Submitted audio is not used to train AI models.
What to know first
- Free plan allows three WAV masters per month.
- Free plan retains analysis history for seven days.
- Pro costs $1,092 a month.
- API costs $2,196 a month, less than White Label at $5,506 a month.
Limits
The Free plan includes three WAV masters per month and seven days of analysis history. Standard allows 30 WAV masters per month and 90-day analysis history; Pro provides unlimited masters and analysis history, with batch processing up to 10 tracks.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | 3 WAV masters/month · BS.1770-4 analysis · 3-model deliberation · section mastering · A/B player · metrics dashboard | Free |
| Pro | Unlimited masters · DSP overrides · batch up to 10 tracks · priority queue · unlimited history · priority support | $1,092 a month |
| Pro | billed annually; save $3,276 · Unlimited masters · DSP overrides · batch up to 10 tracks · priority queue · unlimited history · priority support | $13,104 a year |
| API | REST API · webhooks · 1,000 calls/month · unlimited batch · custom LLM selection · SLA · SSO/team management | $2,196 a month |
| API | billed annually; save $6,588 · REST API · webhooks · 1,000 calls/month · unlimited batch · custom LLM selection · SLA · SSO/team management | $26,352 a year |
| Standard | 30 WAV masters/month · custom LUFS/true-peak targets · 90-day history · email support | $54 a month |
| White Label | Custom brand UI · custom domain · unlimited API calls · dedicated infrastructure · custom DSP chain · custom prompts · 24/7 support · 99.9% SLA | $5,506 a month |
| Standard | billed annually; save $156 · 30 WAV masters/month · custom LUFS/true-peak targets · 90-day history · email support | $648 a year |
The first 8 of 9 plans, as aimastering.tech lists them, read 15 Oct 2026. The maker's own page has the final word. Every plan
Getting started
- Visit https://www.aimastering.tech/.
- Choose the free plan or review the paid plans.
- Use the web interface or REST API.
- Submit a WAV or FLAC file, or provide a supported cloud-storage link.
- Review the analysis and recommendations, compare the audio, and download a WAV file.
Verdict
Choose WhitePrint AudioEngine if you want detailed audio analysis alongside mastering, or need API routes for an audio workflow. Its free plan offers three WAV masters monthly; regular or higher-volume use may require a paid plan, with listed subscriptions reaching $5,506 a month.
Questions
Is there a free plan?
Yes. It includes three WAV masters per month, seven days of analysis history, and community support.
What do the plans cost?
Free costs nothing. Standard is $54 a month, Pro is $1,092 a month, API is $2,196 a month, and White Label is $5,506 a month.
Is there a free trial?
Yes, a 14-day trial is available.
Which platforms are supported?
The service is available on the web and through an API.
What audio formats can I submit and export?
WAV and FLAC are listed as input formats, and WAV export is available.
How is submitted audio handled?
Audio is temporarily stored for processing, deleted within 24 hours after job completion, and not used to train AI models.
Facts from WhitePrint AudioEngine's own pages
- AI deliberation
- Three independent AI models provide mastering recommendations, and users can see each model’s recommendations and the reasoning behind the consensus. · aimastering.tech, 8 Oct 2026
- Analysis
- Its analysis stage measures BS.1770-4 loudness, LUFS, true peak, loudness range, crest factor, spectral balance, stereo width, and song sections. · aimastering.tech, 15 Oct 2026
- API authentication
- API requests use a Bearer key with the wpk_ prefix in the Authorization header. · aimastering.tech, 15 Oct 2026
- API errors
- Documented errors include invalid parameters, authentication failure, usage limits, unreachable or invalid audio, server errors, and a five-minute processing timeout. · aimastering.tech, 15 Oct 2026
- API inputs
- The mastering endpoint requires a direct audio URL and route, with optional LUFS, true-peak, and manual DSP parameters. · aimastering.tech, 15 Oct 2026
- API responses
- Full and DSP-only routes return WAV data, while analysis-only and deliberation-only routes return JSON. · aimastering.tech, 15 Oct 2026
- API routes
- The public API supports full mastering, analysis-only, deliberation-only, and DSP-only routes. · aimastering.tech, 15 Oct 2026
- API use
- The REST API supports full mastering, analysis-only, deliberation-only, and DSP-only routes, and the maker describes use in applications, DAW plugins, distribution platforms, and CI/CD pipelines. · aimastering.tech, 8 Oct 2026
- Audio retention
- Submitted audio is temporarily stored during processing, deleted within 24 hours after job completion, and not used to train AI models. · aimastering.tech, 8 Oct 2026
- Cloud inputs
- Audio can be fetched from Google Drive, Dropbox, OneDrive, Amazon S3, or Google Cloud Storage URLs. · aimastering.tech, 15 Oct 2026
- Cloud integrations
- The service accepts links from Google Drive, Dropbox, OneDrive, Amazon S3, and Google Cloud Storage for direct processing. · aimastering.tech, 8 Oct 2026
- Data handling
- The architecture page states that files are deleted immediately after processing and are not kept in persistent storage. · aimastering.tech, 15 Oct 2026
- Deliberation transparency
- The interface exposes each model recommendation, the consensus result, rationale, and confidence information. · aimastering.tech, 15 Oct 2026
- Developer documentation
- Documentation includes a quickstart, endpoint reference, code examples link, and a technical specification. · aimastering.tech, 15 Oct 2026
- DSP chain
- The mastering engine advertises a 14-stage hybrid chain covering gain, EQ, compression, saturation, stereo processing, limiting, and dithering. · aimastering.tech, 15 Oct 2026
- DSP mastering
- The mastering chain uses 14 hybrid DSP stages, with processing stages bypassed by default unless the AI instructs otherwise. · aimastering.tech, 8 Oct 2026
- Free tier limit
- The Free plan includes three WAV masters per month and seven days of analysis history. · aimastering.tech, 8 Oct 2026
- Independent API details
- The GitHub project documents POST endpoints for analysis, full mastering, deliberation-only processing, and explicit-parameter mastering. · github.com, 15 Oct 2026
- Independent architecture description
- The GitHub project describes the integrated pipeline as analysis, three-model deliberation, and a 14-stage analog-modeled DSP chain. · github.com, 15 Oct 2026
- Independent deployment requirements
- The GitHub project lists Python 3.10+, Node.js 18+, Google Cloud authentication, and API keys for OpenAI, Anthropic, and Google services. · github.com, 15 Oct 2026
- Independent documentation depth
- The GitHub project includes setup steps, Swagger UI availability, API examples, parameter descriptions, and DSP-stage explanations. · github.com, 15 Oct 2026
- Independent license
- The GitHub integration project is marked MIT licensed, but the hosted WhitePrint AudioEngine service itself is not declared open source on its maker pages. · github.com, 15 Oct 2026
- Independent repository activity
- The GitHub repository page shows one star, zero forks, and two commits. · github.com, 15 Oct 2026
- Independent repository origin
- A public GitHub project says it integrates four previously separate WhitePrint AudioEngine microservices into one deployable application. · github.com, 15 Oct 2026
Where WhitePrint AudioEngine stands on Freedom251
- AI Music Mastering Software#32 of 50