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WhitePrint AudioEngine
What it is
WhitePrint AudioEngine provides AI-powered audio analysis and mastering through a web interface and REST API. It can return analysis data, mastered files, or both. Its BS.1770-4 analysis measures LUFS, true peak, loudness range, crest factor, spectral balance, and stereo width. Three independent AI models make mastering recommendations, with each recommendation and the reasoning behind their consensus available to users. Mastering uses 14 hybrid DSP stages, bypassed by default unless the AI directs otherwise. An A/B player, before-and-after metrics, and WAV downloads support review of the result. Inputs include WAV and FLAC, and links from several cloud storage services can be processed directly. API routes cover full mastering, analysis-only, deliberation-only, and DSP-only operations. The free plan includes three WAV masters per month and seven days of analysis history; Standard costs $54.00 per month for 30 masters and 90-day history. A 14-day trial is listed. Audio is deleted within 24 hours after a job completes and is not used to train AI models.
For and against
For
- Analysis covers loudness, spectral balance, and stereo width.
- Users can review separate AI recommendations and consensus reasoning.
- A/B playback and before-and-after metrics are available.
- Processed audio is deleted within 24 hours after job completion.
Against
- Free plan includes three WAV masters per month.
- Free analysis history lasts seven days.
- The listed Standard plan costs $54.00 per month.
The verdict
WhitePrint AudioEngine combines measurable audio analysis with AI recommendations and DSP mastering, with both web and API access. Its free allowance is limited, while higher plans add capacity and support options.
Who it suits
WhitePrint AudioEngine suits producers and audio professionals seeking analysis and mastering in a browser or through an API. The maker describes Standard for producers who master regularly and Pro for professional engineers and labels.
Plans and prices
Free
3 WAV masters/month · BS.1770-4 analysis · 3-model deliberation · section mastering
Read 15 Oct 2026 · aimastering.tech
Standard
30 WAV masters/month · custom LUFS/true-peak targets · 90-day history · email support
Read 15 Oct 2026 · aimastering.tech
Standard
30 WAV masters/month · custom LUFS/true-peak targets · 90-day history · email support
Read 15 Oct 2026 · aimastering.tech
Pro
Unlimited masters · DSP overrides · batch up to 10 tracks · priority queue
Read 15 Oct 2026 · aimastering.tech
Pro
Unlimited masters · DSP overrides · batch up to 10 tracks · priority queue
Read 15 Oct 2026 · aimastering.tech
API
REST API · webhooks · 1,000 calls/month · unlimited batch
Read 15 Oct 2026 · aimastering.tech
API
REST API · webhooks · 1,000 calls/month · unlimited batch
Read 15 Oct 2026 · aimastering.tech
White Label
Custom brand UI · custom domain · unlimited API calls · dedicated infrastructure
Read 15 Oct 2026 · aimastering.tech
White Label
Custom brand UI · custom domain · unlimited API calls · dedicated infrastructure
Read 15 Oct 2026 · aimastering.tech
On the record
- 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 · read 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 · read 15 Oct 2026
- API authentication
- API requests use a Bearer key with the wpk_ prefix in the Authorization header.aimastering.tech · read 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 · read 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 · read 15 Oct 2026
- API responses
- Full and DSP-only routes return WAV data, while analysis-only and deliberation-only routes return JSON.aimastering.tech · read 15 Oct 2026
- API routes
- The public API supports full mastering, analysis-only, deliberation-only, and DSP-only routes.aimastering.tech · read 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 · read 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 · read 8 Oct 2026
- Cloud inputs
- Audio can be fetched from Google Drive, Dropbox, OneDrive, Amazon S3, or Google Cloud Storage URLs.aimastering.tech · read 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 · read 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 · read 15 Oct 2026
- Deliberation transparency
- The interface exposes each model recommendation, the consensus result, rationale, and confidence information.aimastering.tech · read 15 Oct 2026
- Developer documentation
- Documentation includes a quickstart, endpoint reference, code examples link, and a technical specification.aimastering.tech · read 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 · read 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 · read 8 Oct 2026
- Free tier limit
- The Free plan includes three WAV masters per month and seven days of analysis history.aimastering.tech · read 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 · read 15 Oct 2026
