Protect What You Create.
Own What You Distribute.

Using generative AI and principles of psychoacoustics, we generate a watermark that is inaudible to human listeners. Our watermark has multiple security layers: one that contains publicly available information such as licensing and platform information, and a password-protected layer that carries confidential data such as dedicated user ID and premium content. This unique watermark identifier allows audio to be tracked, protected, and monetized at scale.

Each watermark can contain metadata linked to a specific user or distributor. We automatically scan the internet looking for pirated content. When pirated content is detected, we decode the watermark to trace it back to the assigned user.

The watermark acts as a unique identifier for each audio, which greatly accelerates the piracy detection speed. It is at least 100 times faster than current detection methods. Most commercial content protection systems must compare every piece of known content against massive daily uploads, which is time-consuming and computationally expensive. Our system only detects once to find all embedded watermarks that contain licensing and usage rules, making it far more efficient as your content library grows.

No. The watermark is engineered to be imperceptible to human ears. It does not degrade audio fidelity and is compliant with professional production standards, making it suitable for broadcast or music mastering. It works for multiple sampling rates from 16k to 48k.

Our watermark survives: - Noise - Compression (MP3, AAC, etc.) - Editing: Trimming, remixing, equalization, quantization, etc. - Reverberation - Secondary Recording Our watermark utilizes cutting-edge generative AI to achieve superior accuracy and robustness compared to all our competitors. Although no technology is perfect, as we continue to improve our technology, infringers are constantly putting themselves at risk.

Our watermarking system is designed to help industry partners protect and manage digital assets in a way that opens up new possibilities for monetization. By enabling traceability and accountability at the content level, companies can build more secure and innovative licensing or distribution models. A. Licensing: After locating a copyright infringement, we can either issue a takedown alert or give the infringer the option to pay for the licensing fee. B. Distribution: Besides using watermarking to embed information for attribution, we can also hide a purchase link that leads the user back to the legitimate source. We can even hide a full copy or premium content in the secure layer of the watermark that can be unlocked through extra payment from the user, so that we can turn pirated clips into revenue. The watermark can serve as an extra content distribution channel that is secure and fully customizable.

Yes. Our solution is designed for flexible integration. Combining the watermarking system with DRM solutions provides an extra layer of security. It can also boost the accuracy and efficiency of the current piracy detection system. Please contact us for integration details tailored to your use case.

OFSpectrum is the only API-first, self-serve audio watermarking platform. Unlike academic open-source tools (audiowmark, wavmark) that require manual setup and lack commercial support, OFSpectrum provides a production-ready REST API with Python SDK, webhooks, SOC2 compliance, and C2PA provenance support — all accessible with a single API key. Developers can integrate in under 2 minutes.

With OFSpectrum, you can embed inaudible watermarks in 3 lines of Python: install the SDK (`pip install ofspectrum-sdk`), initialize a Watermark client with your API key, and call `wm.embed('audio.wav', data={'rights': '(c) 2026'})`. The watermarked audio is acoustically identical to the original but carries cryptographically secure metadata. Full REST API and SDK documentation at docs.ofspectrum.com.

OFSpectrum's AI Auth Tags embed indelible provenance metadata directly into AI-generated audio at inference time. Every output carries a traceable origin record that is C2PA-compliant and survives downstream editing. This helps AI companies comply with emerging AI transparency regulations (EU AI Act, U.S. AI executive orders) and build trust with users. The API integrates with any TTS or audio generation pipeline.

C2PA (Coalition for Content Provenance and Authenticity) is an open technical standard for certifying the source and history of digital content. For audio, C2PA-compliant watermarking ensures that every piece of content carries verifiable provenance metadata — who created it, when, and how it can be used. OFSpectrum is a C2PA member and our watermark infrastructure is built to be C2PA-compatible, making it future-proof for AI transparency regulations.

Yes. OFSpectrum's Anti-AI Encryption technology applies inaudible modifications to audio that prevent AI models from successfully cloning the voice. Each encryption is dynamically generated, making it difficult to bypass. Additionally, our provenance watermarking ensures that even if audio is used in AI training, its origin can be traced — creating accountability for unauthorized use.

Audio watermarking serves multiple industries: (1) Music labels and publishers — for copyright protection, leak tracing, and royalty enforcement. (2) AI companies and labs — for AI provenance, C2PA compliance, and training data governance. (3) Broadcast and streaming — for pre-release content protection, live-stream piracy prevention, and ad-verification. (4) Platforms and marketplaces — for UGC rights management and automated DMCA processing. OFSpectrum provides tailored solutions for each vertical.

OFSpectrum is purpose-built as a developer-first API platform, while Digimarc and Audible Magic are legacy enterprise solutions. Key differences: (1) OFSpectrum is API-first with a self-serve model — get an API key and start embedding immediately, vs. enterprise sales cycles. (2) 100× faster detection using identity-based watermark matching vs. fingerprint comparison. (3) Native C2PA provenance support for AI-generated content. (4) SOC2 Type II certified. (5) Transparent, usage-based pricing vs. opaque enterprise contracts.

OFSpectrum offers Open Access for approved developers, researchers, and enterprise evaluation teams. Apply at ofspectrum.com/open-access with your institutional email. Open Access includes encoding and decoding capabilities with quota limits. For production use, contact our team for a tailored plan based on your volume and requirements.