MPEG Audio · Standard-Essential Patents
In MPEG audio standardization since 2007 — co-author of MPEG-H 3D Audio, with own coding technologies adopted into the standard. Infringement validated on the device, defended as expert testimony. Claim charts and essentiality analysis for AAC, xHE-AAC and MPEG-H.
Audio Engineering Society Fellowship Award 2025 — “for contributions to the advancement of ambisonics and volumetric audio technologies.”
Not a documentary exercise. Claim against specification, then specification against the device — four disciplines at once.
Claim read against ISO/IEC text — amendments and corrigenda included.
Decoded output measured, not listened to — against the standard's own conformance methods.
How encoders and decoders are actually built — on chip and in software.
Signal captured off real hardware without corrupting the evidence.
Each one alone is common. Together they are not.
Infringement validated on the device, not on paper — signal capture, DSP-level analysis, conformance procedures run against the standard’s own verification methods and mapped to claim limitations. Expert report, declaration and testimony, or non-testifying support kept behind privilege.
Portfolio screening, then claim charts taken the whole way: claims mapped to ISO/IEC 14496-3, 23003-3 and 23008-3, scored normative / implied / informative, with product evidence of use in court-ready form.
An MPEG audio expert on call for the year: ask what the standard requires and what a device's encoder is really doing, while a negotiation is still live. I measure the products you name — and tell you when a new amendment changes the answer.
I accept two concurrent matters. Scope and fees are agreed per case.
The method is my own — twenty years writing these standards, then building products that implement them.
I know which section of the specification governs a given claim limitation, and what a device does when it decodes. That removes the search — where the weeks normally go.
I measure devices. The bitstream either carries the required syntax elements or it does not — and that is what goes into the report, in writing, before it reaches the other side.
What I do guarantee
One of the few engineers worldwide who took part in writing the MPEG audio standards. Audio Engineering Society Fellowship Award 2025.
Audio Engineering Society Fellowship Award (2025)
— “For contributions to the advancement of ambisonics and volumetric audio technologies, including innovations, standardization, patents, and research”
Member of the
AES Technical Committee on Spatial Audio
Active in MPEG audio standardization since 2007 — working group participant and Poland's national delegate to MPEG through PKN; ISO/IEC 14496-3, 23003-3, 23008-3
AAC HE-AAC xHE-AAC (USAC) MPEG-H 3D Audio Opus EVS AMR-WB+
ISO/IEC 13818-7 · ISO/IEC 14496-3
The perceptual audio codec family that replaced MP3 as the default for digital audio distribution. AAC-LC is the baseline profile; HE-AAC adds spectral band replication for low-bitrate efficiency, and HE-AAC v2 adds parametric stereo. xHE-AAC, the extended profile built on USAC, unifies speech and music coding and holds quality down to very low bitrates. AAC-LD and AAC-ELD serve low-latency communication and conferencing.
AAC decoding is native to Android, iOS, Windows and Fire OS, and carries audio for the major streaming platforms and for Digital Radio Mondiale. Its reach across handsets, televisions, set-top boxes, automotive head units and streaming services is what makes essentiality and evidence of use contested in the first place.
ISO/IEC 23008-3
The immersive and personalised audio standard, carrying channel-based, object-based and scene-based content — the last of these as Higher Order Ambisonics — in a single bitstream, with rendering and dynamic range control built into the specification. Two profiles matter commercially: Low Complexity and Baseline.
It reaches televisions, mobile devices, soundbars, smart speakers, AV receivers, automotive systems and headphones through binaural rendering, and has been adopted into major broadcast and streaming standards. The patent pool is younger than AAC and enforcement is only beginning — which is precisely why the technical questions are still open.
AAC, HE-AAC, xHE-AAC (USAC), MPEG-H 3D Audio, Opus, EVS and AMR-WB+ — among others.
No. Technical expert services only; I work alongside your counsel and do not provide legal opinions.
A methodology built over two decades of writing these standards and then building products that implement them. I know which section of the specification governs a given claim limitation, and what a device does when it decodes. That removes the search, which is where the weeks normally go.
Independence is the value. A conflict check precedes every engagement; current work is licensor-side.
Either. As a testifying expert I write the report, sit for deposition and defend the analysis under cross-examination. As a consulting expert I work behind your privilege — the same measurements and the same rigour, without becoming a witness. Tell me which role you are engaging me for at the outset, because it changes how the work is recorded from the first day.
Tell me what is in dispute — the patents, the accused products and the schedule you are working to. It will be treated in confidence.