Sound signature as paradigm: ecology, apparatus, and electroacoustic creation

Autores/as

DOI:

https://doi.org/10.11606/issn.2447-7117.rt.2026.245439

Palabras clave:

Sound signature, electroacoustic music, immersive composition, live electronics, ecological acoustics

Resumen

This article proposes the concept of sound signature as a paradigm for rethinking contemporary electroacoustic composition at the intersection of ecology, philosophy, and technological mediation. Moving beyond the early studio paradigm centered on the autonomous sound object, the study argues that current practices – characterized by live electronics, immersive spatialization, audiovisual integration, and AI-driven systems – foreground relational organization rather than isolated sonic materials. Drawing on Bernie Krause’s theory of ecological soundscapes and Giorgio Agamben’s concept of the signature as a paradigmatic operator, the article reconceptualizes composition as the construction and revelation of relational sonic fields. Ecological sound signatures emerge from the dynamic distribution of acoustic niches within living systems; analogously, electroacoustic works generate structured environments in which agency is distributed across performers, algorithms, spatial systems, and listeners. This framework is examined through analyses of the immersive audiovisual works Embracing Emptiness (2018/24), The Skin of the Earth: Fragments (2024), and the ambisonic composition Pune Metamorphosis (2022-23). These case studies demonstrate how live-electronic processing, spatial diffusion, and AI-driven visual systems construct sonic signatures as evolving ecologies rather than fixed forms. In each work, the apparatus – real-time signal processing, higher-order ambisonics, or machine-learning-based imagery – functions not merely as a tool but as an epistemological dispositif that shapes perceptual relations. By positioning sound signature as both descriptive and productive, the article articulates a shift from object-based to system-based thinking in electroacoustic creation, situating contemporary composition within a broader ecological and ethical horizon.

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Biografía del autor/a

  • Paulo C. Chagas, Universidad de California en Riverside

    Paulo C. Chagas is an internationally recognized composer and Professor of Composition at the University of California, Riverside, whose work bridges artistic creation and critical scholarship in electroacoustic and audiovisual music. His research engages philosophy, systems theory, media studies, and sound studies, with particular focus on immersive environments, cognitive assemblages, and the epistemology of musical apparatuses. He is the author of Unsayable Music (2014) and co-editor of Sounds from Within (2021), and has published widely on electroacoustic paradigms, intermedia composition, and AI-driven musical systems. Chagas earned his PhD in Musicology from the Université de Liège after studies in São Paulo, Liège, and Cologne. In the 1990s, he served as sound director and composer-in-residence at the WDR Electronic Studio in Cologne, an experience that deeply shaped his theoretical and compositional perspectives. His catalogue of over 230 works includes orchestral, chamber, electroacoustic, immersive audiovisual, and telematic compositions, frequently presented at major international festivals and conferences. A member of the board of directors of the International Computer Music Association (ICMA), he contributes actively to global discourse on music, technology, and creativity. His work has received numerous distinctions, including a Fulbright Research Award for his Berlin residency (2022–23), where he advanced research on immersive and spatial sound systems.

Referencias

AGAMBEN, Giorgio. The signature of all things: on method. Translated by Luca D’Isanto and Kevin Attell. New York: Zone Books, 2009a.

AGAMBEN, Giorgio. What is an apparatus? And other essays. Translated by David Kishik and Stefan Pedatella. Stanford, CA: Stanford University Press, 2009b.

BORN, Georgina (ed.). Music, sound and space: transformations of public and private experience. Cambridge: Cambridge University Press, 2013.

CHAGAS, Paulo C. Sound, truth, and paradigm. In: CHAGAS, Paulo C.; WU, Cecilia (ed.). Sounds from within: phenomenology and practice. Cham: Springer, 2021. p. 1–28. DOI: 10.1007/978-3-030-72507-5_1. Available at: https://link.springer.com/chapter/10.1007/978-3-030-72507-5_1. Accessed: 13 abr. 2026.

CHAGAS, Paulo C. Imaginações sonoras, imersão audiovisual e telemática. In: FIGUEIREDO, C. A. P. de; LIMA, C. N. de; REIS, E. L. de L.; DINIZ, T. F. N. (ed.). Escrita, som, imagem: natureza em foco. v. 3. Belo Horizonte: Fino Traço, 2022. p. 65–86. Available at: https://www.finotracoeditora.com.br/e-book-escrita-som-e-imagem Accessed: 14 Feb. 2026.

CHAGAS, Paulo C. Sound imaginations: listening cultures and audiovisual immersion. Array, 2023a, p. 59–76. DOI: 10.25370/array.v2023. Available at: https://array.publia.org/array/issue/view/304. Accessed: 13 abr. 2026.

CHAGAS, Paulo C. Pune Metamorphosis – video #1 (2023), Riverside [United States], 22 aug. 2023. YouTube: Paulo C. Chagas @pauloc.chagas. 2023b. 1 video (19 min 1 s). Available at: https://youtu.be/qfd8vlReL3s. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C. From sacrifice to telematic: on music and ritual. Roczniki Humanistyczne [Annals of Arts], v. 72, n. 12 (Musicology Special Issue), 2024a, p. 69–79. DOI: 10.18290/rh247212sp.6. Available at: https://czasopisma.tnkul.pl/index.php/rh/article/view/1404. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C. O jogo e o diálogo: compondo com aparelhos. Revista da Tulha, Ribeirão Preto, Brasil, v. 10, n. 2, p. 100–136, 2024. DOI: 10.11606/issn.2447-7117.rt.2024.229940. Available at: em: https://revistas.usp.br/revistadatulha/article/view/229940. Acessed: 13 abr. 2026.

CHAGAS, Paulo C. Embracing Emptiness (2018/24) – for marimba and vibraphone, electronics, and video, Riverside [United States], 26 aug. 2024. YouTube: Paulo C. Chagas @pauloc.chagas. 2024c. 1 video (19 min 11 s). Available at: https://youtu.be/Ku--CzMRIZI. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C. Audiovisual Immersion: exploring telematic rituals. Journal SEAMUS, New Britain, v. 34, n. 1–2, 2025a, p. 22–32. Available at: https://seamusonline.org/wp-content/uploads/2025/06/Journal_SEAMUS_Vol_34.pdf. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C. intermedia and audiovisual composition: theory and practice. In: MOLNAR, D. J.; LEKOVIĆ, B.; MITROVIĆ, R. (ed.). Music beyond the concert hall. Belgrade: University of Arts in Belgrade, Faculty of Music, Department of Musicology, 2025b. p. 3–25. Available at: https://zenodo.org/records/17406347. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C. The Skin of the Earth: Fragments (2024), Riverside [United States], 8 jul. 2025. YouTube: Paulo C. Chagas @pauloc.chagas. 2025c. 1 video (11 min 45 s). Available at: https://youtu.be/RWgGGpZRmgk. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C.; FONTAINE, Konstantin. Integrating higher order ambisonics and cognitive assemblages in immersive sound composition. In: KYE, H. S.; DUDAS, R. (ed.). INTERNATIONAL COMPUTER MUSIC CONFERENCE, 49, 2024 – Seoul. Proceedings […]. San Francisco, CA: International Computer Music Association, 2024. p. 128–131. Available at: www.fulcrum.org/concern/monographs/2227ms73r. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C.; PETKOVIĆ LOZO, Ivana. From cybernetics to immersivity: reframing sound space in electroacoustic and audiovisual composition. In: BARTHET, M.; ARAMAKI, M.; KORNLAND-MARTINET, R.; YSTAD, S. (ed.). INTERNATIONAL SYMPOSIUM ON COMPUTER MUSIC MULTIDISCIPLINARY RESEARCH, 17, 2025, London. Proceedings […]. London: University College London, 2025. p. 391–408. DOI: 10.5281/zenodo.17509282 Available at: https://zenodo.org/records/17509282. Accessed: 14 Feb. 2026.

CHAGAS, Paulo C.; PETKOVIĆ LOZO, Ivana. Collaborative Dynamics in Electroacoustic Music Creativity: Telematic Dialogues Across Apparatuses. Música Hodie, Goiânia, v. 26, 2026. DOI: 10.5216/mh.v26.85132. Available at: https://revistas.ufg.br/musica/article/view/85132. Accessed: 13 abr. 2026.

CHAGAS, Paulo C.; VOLPATO, Reinaldo; MELO, Kátia M. S. A Pele da Terra – imersão audiovisual e digital: autonomia tecnológica e crise ecológica. In: MELO, K. M. S. et al. (ed.). Conexões Continentais Portugal – Brasil: Amazônia e as Questões Socioambientais Globais. Belém: Editora Pública Dalcídio Jurandir, 2025. p. 25–37.

FLUSSER, Vilém. Into the universe of technical images. Minneapolis: University of Minnesota Press, 2011.

HAYLES, Katherine. Unthought: the power of the cognitive nonconscious. Chicago: University of Chicago Press, 2017.

KRAUSE, Bernie. The great animal orchestra: finding the origins of music in the world’s wild places. New York: Back Bay Books, 2012.

NANCY, Jean-Luc. La peau fragile du monde. Paris: Galilée, 2020.

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Publicado

2026-04-13

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Cómo citar

Chagas, P. C. (2026). Sound signature as paradigm: ecology, apparatus, and electroacoustic creation. Revista Da Tulha, 12, e122604oEn. https://doi.org/10.11606/issn.2447-7117.rt.2026.245439