
ISSN:1390-9266 e-ISSN:1390-9134 LAJC 2025
50
DOI:
LATIN-AMERICAN JOURNAL OF COMPUTING (LAJC), Vol XII, Issue 2, July 2025
10.5281/zenodo.15741202
LATIN-AMERICAN JOURNAL OF COMPUTING (LAJC), Vol XII, Issue 2, July – December 2025
When Light Meets Sound: Signal Analysis of Black
Holes
Cuando la Luz Encuentra el Sonido: Análisis de
Señales de Agujeros Negros
Guillermo Bolaños Rodríguez
Arqcustic
Acoustic engineer
Quito, Ecuador
arqcustic@gmail.com
Abstract—
When light meets sound, a new dimension of
analysis unfolds. This work explores black hole observations
through the lens of signal theory and acoustic wave mechanics,
revealing a resonant bridge between electromagnetic and
mechanical waves. Using Event Horizon Telescope EHT data, black
hole imagery is treated as a three-dimensional digital signal, where
the analytic Hilbert envelope and normalized Discrete Fourier
Transform DFT expose hidden structures.
The gravitational shadow is interpreted not as silence, but as a
measurable energy dip—an imprint of absorption rather than
absence. Euler’s identity is employed to map signal phase and
symmetry into polar and complex domains, providing an intuitive
mathematical pathway toward the event horizon.
By applying foundational acoustic concepts such as resonance,
interference, and entropy, the field surrounding the black hole is
reinterpreted as a complex communication signal. This
interdisciplinary framework unifies digital signal processing,
electromagnetic theory, and acoustics into a novel methodology for
astronomical analysis. Notably, when a full noise assessment is
conducted, EHT images exhibit a significant enhancement in
resolution and information transmission.
Keywords—
black hole imaging, digital signal processing,
Hilbert analytic envelope, frequency-domain analysis
Resumen—
Cuando la luz se encuentra con el sonido, emerge
una nueva dimensión de análisis. Este trabajo examina las
observaciones de agujeros negros a través de la teoría de señales y
la mecánica de ondas acústicas. Utilizando datos del Telescopio del
Horizonte de Sucesos EHT, las imágenes de agujeros negros se
tratan como señales digitales tridimensionales, donde la envolvente
analítica de Hilbert y la Transformada Discreta de Fourier (DFT,
sigla en inglés) normalizada revelan estructuras y simetrías ocultas.
La sombra gravitacional se interpreta no como silencio, sino
como una caída medible de energía—una huella de absorción en
lugar de una simple ausencia. La identidad de Euler se emplea para
mapear la fase y la simetría de la señal en planos polares y
complejos, ofreciendo un camino matemático intuitivo hacia el
horizonte de eventos.
Al aplicar conceptos acústicos fundamentales como la
resonancia, la interferencia y la entropía, el campo que rodea al
agujero negro se convierte en una señal comunicativa. Este enfoque
interdisciplinario unifica el procesamiento digital de señales, la
teoría electromagnética y la acústica en una metodología innovadora
para el análisis astronómico. Cabe destacar que, al realizar una
evaluación completa del ruido, se logra una mejora significativa en
la resolución y transmisión de información de las imágenes
publicadas por el EHT.
Palabras clave— imágenes de agujeros negros, procesamiento
digital de señales, envolvente de Hilbert, análisis acústico, análisis
en frecuencia
I. INTRODUCTION
Information transfer is a universal principle bridging
quantum mechanics and classical communication, where all
signals carry energy, meaning, and noise encapsulated in
discrete packages such as numbers, letters, bits or waveforms.
Sonic language emerges when wave patterns become
mutually intelligible between two or more individuals,
enabling them to convey meaning. Written language, in turn,
is a system of abstract symbols that represent the sound of the
waveform; in this sense, a text functions like a musical score.
For example, vowels represent the shape the mouth must
take to produce a given tone, while consonants define the
articulation and structural rhythm of pronunciation. Although
the combination of these symbols is remarkably expressive,
different languages that share the same basic alphabet often
act as acoustic privacy filters, where unfamiliar waveforms or
combinations may be heard but not understood or readable.
Architectural acoustics addresses how signals travel from
emitter to receiver, aiming to reduce distortion and preserve
intelligibility particularly in the articulation of consonants,
which are most susceptible to masking. In this analogy,
amplitude corresponds to font size or pixel intensity, noise to
typographic clutter or distortion, and reflections to the
overlapping of tints and shadows that blur the visual message.
Epistemology refers to the study of knowledge itself: how
we know what we know, what counts as valid information,
and what frameworks we use to extract meaning from
observation, therefore visual images from black holes can be
studied like waves composed of discrete points or pixels.
In this study, images from EHT and PRIMO will serve as
reference benchmarks to test the hypothesis that, by
approaching the problem as an acoustic engineering task with
the application of digital signal processing, it is possible to
improve information transfer from black holes observations.