I’m Josefina Rozenwasser Marín, a sound designer, sound artist, composer, and audio experience specialist based in Barcelona.

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My practice operates at the intersection of sound art, cinema, narrative audio, and embodied listening, and is driven by an ongoing research into how sound affects the body and nervous system — shaping perception, attention, intimacy, rest, and emotional states over time. I work with sound not as a background element, but as an active material: one that organizes listening, modulates presence, and influences how the body inhabits time and space.

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Across film, installation, performance, and narrative audio, my work explores how layers of noise, silence, rhythm, vibration, and voice act on the body, influencing emotional regulation, intimacy, movement, and ways of being present. I’m particularly interested in sound as a tool for regulation rather than stimulation, and in listening as an embodied, relational experience.

Alongside my artistic practice, I’ve worked extensively in sound design, sound direction, and composition for film and audio-based projects, collaborating with filmmakers, studios, and cultural institutions such as Alba Sotorra, Erika Lust, MACBA, and CCCB. Several of these works have been screened and recognized at film festivals in Spain.

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I also develop fiction and narrative audio as a form of cinema without images, and work with sound in wellness, sex-positive, and educational contexts, where listening becomes a tool for care, trust, focus, rest, and embodied exploration. Within this framework, I’m the Director and Co-Founder of Sexify, an ongoing project investigating the relationship between sound, sexuality, and the body through experimental, voice-led audio formats and experiences.

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In parallel, I work in Content Operations at ElevenLabs / ElevenReader. My role bridges creative, product, and operational workflows — from content review and QA to author support, production coordination, and release processes across a growing audio catalog.

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I bring extensive experience in full-cycle audio production, including fictional and narrative podcasts — from development and scripting to talent coordination, voice cleanup, sound design, editing, mixing, mastering, and final delivery. My work in film as a composer and sound designer further informs my approach to storytelling, pacing, and emotional continuity across long-form audio.

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My current research expands toward installation and material exploration, where sound, body, and physical elements converge to create situations of listening rather than closed objects — environments designed to be inhabited rather than observed.

I work comfortably across artistic, cultural, and applied contexts, bringing a research-led, practice-driven approach to projects that require both conceptual depth and practical execution.

I’m always open to collaborations at the intersection of sound, art, technology, wellbeing, and human experience.