Patrick Marmaroli
Audio Signal Processing Engineer & AI Specialist
Tallinn, Estonia
Audio Signal Processing Engineer & AI Specialist
Tallinn, Estonia
Signal processing engineer with a PhD from EPFL and 15+ years of experience building audio ML systems — from acoustic sensing prototypes to production-grade pipelines at Microsoft. I combine deep expertise in DSP, machine learning, and full-stack development to turn complex audio problems into working software. Currently a Senior Audio Engineer at Microsoft (Teams audio quality) and Co-Founder of Vocametrix, a voice-controlled platform for speech therapy.
Microsoft · Tallinn, Estonia
Sound quality engineering for Microsoft Teams — audio processing pipelines, quality metrics, and signal analysis at scale.
Vocametrix OÜ · Tallinn, Estonia
Voice-controlled games and audio analysis tools for speech therapy. Web platform combining pronunciation assessment, pitch tracking, and gamified exercises.
Hidacs Sàrl · Lausanne, Switzerland
R&D consulting in signal processing and machine learning — feasibility studies, proof-of-concepts, and prototyping for speech, industrial, environmental, and health applications.
Development of an anti-spoofing technology using ultrasound for identity verification liveness detection.
EARSENS project — privacy-preserving indoor activity detection using electrodynamic loudspeakers and AI, without microphones. Co-authored publication in Applied Acoustics (January 2023).
HED Technologies · Geneva, Switzerland
Designed and implemented signal processing algorithms (echo cancellation, noise reduction, voice command recognition) and contributed to headphone acoustic design. Led R&D efforts growing the Audio Department from scratch to a 4-engineer team, steering algorithm development from prototype to validated product.
PRONA SA · Yverdon, Switzerland
Developed custom Matlab tools and data processing pipelines for building and environmental acoustic analysis. Conducted normative acoustic measurements and managed multidisciplinary acoustic projects for industrial, institutional, and private clients.
EPFL · Lausanne, Switzerland
Designed audio signal processing algorithms and conducted laboratory and field experiments within European research projects. Collaborated with industrial partners including Phonak (hearing aids), FIAT, and ARMASUISSE. Supervised interns and PhD students.
Swiss Federal Institute of Technology (EPFL) · Switzerland
Bimodal sound source tracking applied to road traffic monitoring.
Université du Sud Toulon-Var · France
Signal processing, psychoacoustics, and trajectography.
ISEN Toulon · France
Lycée Lachenal · Argonay, France