Rhetoric After Sound: Stories of Encountering “The Hum” Phenomenon

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“So I have heard The Hum… The rest of what I’m about to tell you is beyond reasoning, and understanding.” Here, in a Reddit post, Michael A. Sweeney prefaces their story of their first encounter with “the hum,” an unexplained phenomenon heard by only a small percentage of listeners around the world. The hum is an ominous sonic event that impacts communities from Australia to India, Scotland to the United States. And as Geoff Leventhall writes in “Low Frequency Noise: What We Know, What We Do Not Know, and What We Would Like to Know,” the hum causes “considerable problems” for people across the globe—such as nausea, headaches, fatigue, and muscle pain—as it continues to be an unsolved “acoustic mystery” (94).
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Sweeney’s story of encountering the hum for the first time is remarkable. It begins in Taft, California, which Sweeney recounts as “a podunk little desert bowl town in the middle of nowhere. You can literally drive from one end to the other in under 10min, under 5 if you was speeding.” On this particular night, while walking down the main road of Taft, they report the scene being charged with electricity, and following this charge, hearing a moving sound, a traveling yet invisible sound. “This invisible thing was creating a noise like I had never heard before and sending a wave of static electricity throughout the air in every direction around it,” Sweeney explains. They try to track it down, but to no avail. After following the hum a few blocks and around a couple of corners, it just simply vanishes. As Kristin Gallerneaux aptly claims in her book High Static, Dead Lines: Sonic Spectres and the Object Hereafter, “the Hum’s oppression seems to come from everywhere and nowhere” (196), and this is especially true in Sweeney’s encounter.

While their account of the hum as electrically-charged is exceptional, Sweeney’s story adequately represents both the anomalistic qualities of the hum and its ability to elude a locatable and identifiable source. They attempt to describe the hum during this encounter as “like an invisible traveling vehicle of some sort,” but that, altogether, they are “not really sure” what it is. And they even admit that this explanation “makes no sense… whatsoever.” This difficulty in describing the phenomenon is reaffirmed not only by the stories told by other listeners but, too, the numerous scientific experiments that have been conducted after the hum’s frequent emergence beginning around the 1970s (Deming “The Hum: An Anomalous Sound Heard Around the World” 583).

In the US, two major studies have been conducted on the hum: The first in Taos, New Mexico, and the second in Kokomo, Indiana (Cowan “The Results of Hum Studies in the United States”; Mullins and Kelly “The Mystery of the Taos Hum”). Collectively, nearly three hundred residents in these communities have reported hearing a mysterious hum that exists without a known source. While it may sound like an idling diesel truck engine (Frosch “Manifestations of a Low-Frequency Sound of Unknown Origin Perceived Worldwide, Also known as ‘The Hum’ or the ‘Taos Hum’” 60), a dentist’s drill (Deming 575), “someone’s high-powered audio bass running amok” (Mullins and Kelly “The Elusive Hum in Taos, New Mexico”), or simply just an “invisible force”—as Sweeney claims—it may be none of the above. Musicologist Jorg Muhlhans asserts that “there is no clear evidence for either an acoustic or electromagnetic origin, nor is there an attribution to some form of tinnitus” (“Low Frequency and Infrasound: A Critical Review of the Myths, Misbeliefs and Their Relevance to Music Perception Research” 272). Thus, according to Muhlhans, these studies reveal that while hum’s sensorial impact is that of sound, the phenomenon itself is likely neither acoustic nor electromagnetic.

Beyond the limits of current scientific logics which attempt to make sense of sonic events and their impacts, the hum exists as an exceptional and unknown anomaly. It transcends the valuative limits of current knowledge in acoustics and ways of understanding how sound moves through, across, and within spaces to address potential listeners. “I’m not saying I saw waves of electricity or anything of the sort,” Sweeney adds to their above description of the hum as a sound “charged with electricity.” “It was more of a feeling than something you saw. I could just feel electricity everywhere, and see little tendrils of it from my fingertips as I ran them across each other… I just KNEW it was coming from whatever was making that sound, this invisible force that was traveling down the road.” In such an account, the hum defies scientific explanation, and this fact is supported by the multiple failed investigations into the phenomenon. As Franz Frosch details in their article “Hum and Otoacoustic Emissions May Arise Out of the Same Mechanisms,” some scientists have built multiple “custom shielded chamber[s]” out of copper and magnetic material to test for a potential acoustic or electromagnetic source of the hum (604). These investigations, time after time, can’t provide an answer—leaving it up to listeners of the hum to form their own.

Sweeney’s story—and the endless other stories of the hum that have been told across the world—depict the lived, affective, and rhetorical experience of anomalistic listening. To hear, to listen with the hum, is to experience the affective dimensions of a “sound” that has no apparent acoustic or electromagnetic source. This is because “sonic knowledge is framed through acoustics and experience” (84), as Mark Peter Wright notes in his book Listening After Nature: Field Recording, Ecology, and Critical Practice. So, to listen with the hum is to occupy a state of affection that is altogether unknown to not only science but the listener themself. Sweeney bluntly continues, writing about their experience of the hum, saying, “I only know exactly what I’ve told you today.” To know this sound, for this sound to exist as truth, this unfolds through stories found in the still-to-be-explained.

I consider “after sound” to characterize this felt condition for rhetorical action that is a result of listening beyond or after acoustic valuations. Instead of this being a moment void of sound, “after sound” defines a state of experience that is complicated by an attempt to control the valuative limits of what is and isn’t sonic. In this way, “after sound” only gestures toward the temporal to develop the different emergence of the sensorial. Because the hum affects in a manner similar to sound but without acoustic or electromagnetic origin, people who hear the hum make sense of this relentless experience through a condition that is after sound. Such a claim is represented in Sweeney’s admission that “[they] just have this weird feeling that this story needs to be told. That there’s more to The Hum than anyone has realized, and that maybe it needs to be further studied and looked into” (added emphasis). This felt, “weird feeling” is initiated after sound, and this is what I am considering as the call for rhetorical action. Such an affective, felt, and lived experience may only exist after the “logical” answers, failed scientific studies, and experiments lacking helpful results become determinative of sonic limits.

Further, “after sound” moves from Marie Thompson’s discussion of “source-oriented” noise (30) that she posits in her book Beyond Unwanted Sound: Noise, Affect, and Aesthetic Moralism. Speaking to the phenomenon of the hum, Thompson explains that an “unidentifiable noise is often amplified in perception, grasping the attention of the listener” (29). “After sound” is an hyper-attuned condition wherein the rhetorical actions of listeners are always attentive to what-may-(not)-be acoustics. It is their presence within utter sonic mystery that fuels the potential for persuasive response. And David Deming, a researcher in Geosciences, articulates in his article “The Hum: An Anomalous Sound Heard Around the World” that “in the absence of an answer provided by science, Hum hearers tend to find an explanation and hang on to it” (579), which illustrates the potential for listeners to respond via story within the conditions foregrounded by anomalistic encounters. “After sound” describes a moment of malleability that opens up in soundtime for different negotiations of sense and affect.

Responding to the conditions of listening with story, like Sweeney does, reflects an intention to share and persuade through an expression of sonic experience. As Katherine McKittrick states in her book Dear Science and Other Stories, “story opens the door to curiosity; the reams of evidence dissipate as we tell the world differently, with creative precision” (7). And V. Jo Hsu, speaking to the rhetorical potential of story, elucidates in their book Constellating Home: Trans and Queer Asian American Rhetorics that “story can slow down, hold still, redefine, and/or reimagine our physical movements to renegotiate their shared meanings” (18). How I’m conceiving of storytelling after sound develops from the insights developed by these authors and other scholars exploring the rhetorical potential of story in cultural rhetorics.

Story, in the domain of sound, enables listeners to reconsider how, when, why, and where the sonic is defined and valued. While it must not be the sole rhetorical technology after sound, Sweeney clearly relies on storytelling to make sense of their encounter with the hum. This story and other stories told about the hum illustrate how listeners practice the negotiation of sound’s meaning by collectively exploring ways of investigating and experimenting with(in) phenomena. Telling stories after sound is to reach across and through a community of listeners to find shared truths that come to be through encounters with hearing. Altogether, rhetoric after sound queries the intersection of perception and intelligibility to jostle forward the meaning of listening. At a moment when the world is at a loss for answers, this is a practice of seizing opportunities for hopeful and imaginative intervention into the valuative limits of the sonic.

“I’ll end it here,” Sweeney begins in their last paragraph, “and I can assure you that everything I have told you is the absolute truth. It happened to me and not a friend of a friend. I was awake, I’m not making any of it up, and all I want are REAL answers.” Sweeney’s call for a resolution was posted 10 months ago, in May 2023. And still today, the hum continues to lack answers, and the unsolved mystery continues to impact listeners. More recently, Popular Mechanics reported in a November 2023 article, titled “A Ghostly Nighttime Hum Is Invading Random Towns. Scientists Don’t Know What It Means,” that the hum has reached Omagh in Northern Ireland and that citizens are “trapped inside [of a mystery].” So far, no matter the amount of media coverage nor number of affected people across the world, encounters are ultimately defined by sounds unknown. After sound—when communities of listeners are left behind by these valuative limits—rhetorical action persists in search of an explanation.
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Featured Image: Spiral by Flickr User Richard CC BY-NC 2.0 DEED
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Trent Wintermeier is a second-year PhD student in the Department of Rhetoric and Writing at the University of Texas at Austin. He’s a Graduate Research Assistant for the AVAnnotate project, where he helps make audiovisual material more discoverable and accessible. Next year, he will be an Assistant Director for the Digital Writing & Research Lab. His research interests broadly include sound, digital rhetorics, and community. Currently, he’s interested in how researchers can responsibly engage with communities impacted by sound and the local rhetorical ecologies which materialize under sonic conditions.
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REWIND!…If you liked this post, you may also dig:
Becoming a Bad Listener: Labyrinthitis, Vertigo, and “Passing”–Aaron Trammell
Live Through This: Sonic Affect, Queerness, and the Trembling Body–Airek Beauchamp
Listening to Tinnitus: Roles of Media When Hearing Breaks Down—Mack Hagood
My Time in the Bush of Drones: or, 24 Hours at Basilica Hudson–Robert Cashin Ryan
Echoes of the Latent Present: Listening to Lags, Delays, and Other Temporal Disjunctions–Matthew Tompkinson
Re-orienting Sound Studies’ Aural Fixation: Christine Sun Kim’s “Subjective Loudness”–Sarah Mayberry Scott
Spaces of Sounds: The Peoples of the African Diaspora and Protest in the United States
The slaves who were ourselves had known terror intimately, confused sunrise with pain, & accepted indifference as kindness. – Ntozake Shange, Sassafrass, Cypress & Indigo
Sanford. Baltimore. Chicago. Staten Island. Charlotte. Cleveland. Oakland. Austin. Los Angeles. The Bronx.
Despair in the United States is nothing new. It is neither an emotion confined to the neatly-drawn borders of this land nor is it experienced more acutely by any one group of people. The vast discrepancy between the results of the popular vote and the electoral college’s selection of Donald Trump as forty-fifth president of the United States amply reveals despair to be an sentiment viscerally experienced by a wide swath of people in this country, irrespective of race, ethnicity, gender, class, or sexuality.
Such despair has been ignored, however, by those who have caused and who continue causing the suffering of peoples of both indigenous and, later, African descent. We are taught that men from what we now recognize as Europe arrived in this hemisphere in the late fifteenth century, settling initially on a strip of earth in the Caribbean Sea that would become the first site of massacre and genocide, acts which unleashed, if one lends credence to the narrator of Junot Díaz’s The Brief Wondrous Life of Oscar Wao, the fukú, the “Curse and the Doom of the New World.” The narrating voice himself characterizes the curse not in the actions of death, but in the “screams of the enslaved, [..] the death bane of the Tainos, uttered just as one world perished and another began […]” (1). The fukú resonated through the sounds that these human beings made.

Image of the People’s History of Telegraph Avenue mural, designed by Osha Neumann, painted in 1976, restored and enlarged in 1999, at the corner of Haste and Telegraph in Berkeley. Image by Flickr user nursenicole329 (CC BY-NC-ND 2.0).
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Not a house in the country ain’t packed to its rafters with some dead Negro’s grief. – Toni Morrison, Beloved
The State’s unwillingness to hold George Zimmerman responsible for the murder of Trayvon Martin–and its subsequent refusal to hold any police officer accountable for the hundreds of deaths they have caused–has galvanized the United States in the last four years. Hundreds of thousands of men, women, and children alike have taken to the streets, as #BlackLivesMatter, a true and succinct sentence, has roused ghosts of the past who have never left us, who have always been present, accompanying us on this journey.
This post is not a reflection of the music that has served as a soundtrack to these protests, though there are articles that have done so, such as this one, this one, and this one. These pieces do not include the extensive list of articles that address perhaps the most widely-viewed piece of protest music thus far, Beyoncé’s “Formation” video, a scarce offering of which can be found here, here, and here. Instead, it is an essay inspired by the sounds of the protesters themselves, the noises made by the minds, bodies, and spirits of the men, women and children who have taken to public spaces and sometimes commercial zones in order to confront and object to the protections applied to those who kill men, women, and children, often of African descent.
Listen to Los Angeles in 2013. . .
. . .to Houston in 2014. . .
. . .to New York City in 2014. . .
. . .and to Charleston in 2015. . .
. . .
In his pivotal Cities of the Dead: Circum-Atlantic Performance (1996), Joseph Roach characterized New Orleans and London as urban centers marked by two simultaneous, consistent acts: appropriation by white people and white power structures of the cultures of the peoples they have violently marginalized, and then, at the same time, a clear distancing from those very cultures and peoples. Although now in its twentieth year of publication, Roach’s theorization of the circum-Atlantic world remains vastly underutilized in scholarly circles—particularly in sound studies, where it should have special resonance– and has become increasingly critical to our understanding of this historical moment, as it “insists on the centrality of the diasporic and genocidal histories of Africa and the Americas, North and South, in the creation of the culture of modernity” (4). With this configuration, Roach accomplishes two feats simultaneously: first, he decentralizes the United States as the focal point of studies about the so-called New World, instead, placing on equal footing all of the histories and cultures of the Americas. For this scholar of the literatures of the Americas, particularly those written by men and women of African descent, Roach’s is a critical gesture that facilitates comparative work across national boundaries.
Second, and most importantly, Roach emphasizes the role of murder, rape and the destruction of whole cultures indigenous to the American and African continents in the foundation of the nations of this hemisphere. Ta-Nehisi Coates is perhaps the most recent writer to remind us that the most potent legacy of such modernity, racism, “is a visceral experience, that is dislodges brains, blocks airways, rips muscle, extracts organs, cracks bones, breaks teeth” (Between the World and Me, 10). That which we know as “modernity,” itself a deeply flawed construct that remains in need of serious revision, was born of broken backs, mutilated limbs, hushed middle-of-the-night tears of indigenous and African peoples. Moans and sighs, whispers and wails, cries and screams, they are the musical score of this hemisphere’s American experiment.
The slaves who were ourselves aided Indigo’s mission, connecting soul & song, experience & unremembered rhythms –Ntozake Shange

Harriet Tubman Memorial Monument, Harlem, Image by Flickr User John Mannion (CC BY-NC-ND 2.0).
In the face of a populace accustomed to ignoring the wailing of mothers who have buried their children, who have disregarded their dignity and the weight and shape and taste of their loss, men, women, and children have mobilized. They have made manifest that which communities of peoples of African descent have spoken of and have documented since the founding of this nation. As Roach has utilized the term performance, the literal rituals of mourning by communities of African heritage not only commemorate those who have recently passed but they also invoke the spirits of those who have long borne witness to such violence. Throughout his study, Roach distinguishes between a European heritage that begins to segregate the living from the dead during the Enlightenment (50), and more traditional cultures, particularly African ones, where spirits mingle with their human counterparts. While written texts may not, and often do not, adequately commemorate the loss of lives deemed marginal to the larger society, performance itself – chants, wails, songs – serve not only to memorialize but also as gestures of restoration.
Protesters and activists are no longer satisfied with the well-established decree that we should wait for a distant moment for a more perfect realization of the United States’s many promises. No, instead, they have identified this as the historical moment in which those oaths are to be fulfilled. They have walked, marched, and stomped through streets, on sidewalks, parks, churches, filling malls and transportation hubs with their bodies as testimony. They have repossessed and redefined spaces once thought of as simply neutral, transparent space as Katherine McKittrick refers to it in Demonic Grounds, revealing the fault-lines of difference based on class, race, gender, and sexuality in this society (xv). They have done so manipulating sound, both recycling chants used through the decades to protest injustice and, at times, simply occupying space, without a word uttered.
The silence waged in the 2014 protest in Grand Central Terminal after the non-indictment of Daniel Pantaleo in the murder of Eric Garner does not represent erasure, but rather a purposeful demonstration of the willful humanity of those unwilling to forget.
They quiet themselves. They replace the sounds of unfettered pain and grief with its absence, until all that you hear is the mechanized announcement of train schedules. The contrast is stark: the moment highlights what Claudia Rankine has identified as the condition of black life in Citizen, that of mourning (145), against a backdrop of technological advancement, that which has been built on the backs of and through the physical, emotional, and intellectual labor of black life. Here, the members of this community enact what has been called a “die-in”: simulating the physical positioning of bodies in caskets, they force onlookers to confront an uncomfortable truth about the history of this country and of the nations of this hemisphere.
All of us walk on land soaked in the blood of those who have made our lives easier and more convenient. The men and women at Grand Central make manifest what Roach terms surrogation: in the chasm left by death, they offer a replacement, one that both evokes those who have died and disturbs the complacency of survivors themselves (2). The performance serves to confront those who dare say that the violence of genocide and enslavement of past generations should remain in the past; no, these men and women and the spirits they invoke respond. Time is not linear, as we have been taught. For past, present, and future are temporal constructs used to service oppression and domination; this will no longer do.

From Kara Walker’s 2014 exhibit, “A Subtlety,” at the Domino Sugar Factory in Brooklyn (CC BY-NC 2.0)
Here, in this here place, we flesh; flesh that weeps, laughs; flesh that dances on bare feet in grass. Love it. Love it hard. – Toni Morrison
We bear witness to the reclamation of grief, of lives cut short at the hand of a government charged with protecting those human beings who inhabit its borders, at least theoretically. While, as Roach surmises, “memory [may be] a process that depends crucially on forgetting” (2), we hold space to those dedicated to not forget, to instead excavate the silences, breathe life into those histories, remembering that the stories we have heard, the pages we have read, were once human beings. We create “counter-memories” as challenge and testimony, as a sacred pledge to those who are no longer present physically in this realm (Roach 26). We recall the cultures and practices of those who lived before the written form was a tool of exclusion, when remembrance was a practice of community.
American culture, in the hemispheric sense, incorporates all such rituals, across generations; as Roach notes, it is performance that “works on behalf of living memory, by bringing the parties together as often as necessary” (138). No longer consigned to the past, the spirits of those killed by the state are revived, their existences in the human plain celebrated. They are not defined by how they died but instead by how they lived. While literacy of the written form can separate, sound and gesture more effectively bypass the fictions of difference based on race, ethnicity, gender, class, and sexuality. Cities of the Dead amplifies how “performance can articulate what otherwise may not be properly communicated” (161).

Image of the People’s History of Telegraph Avenue mural, designed by Osha Neumann, painted in 1976, restored and enlarged in 1999, at the corner of Haste and Telegraph in Berkeley. Image by Flickr user nursenicole329 (CC BY-NC-ND 2.0).
It’s so magic folks feel their own ancestors coming up out of the earth to be in the realms of their descendants – Ntozake Shange
We say their names. We say their names: Eleanor Bumpers. Anthony Báez. Sean Bell. Aiyana Stanley-Jones. Tyisha Miller. Oscar Grant. Rekia Boyd. Trayvon Martin. Tanisha Anderson. Renisha McBride. Eric Garner. Yvette Smith. Tamir Rice. Sandra Bland. Freddie Gray. Korryn Gaines. Akia Gurley. Alton Sterling. Philando Castile. Micah Jester. Deborah Danner. Walter Scott. Michelle Lee Shirley.
The list, tragically, grows, and still we say their names. We do so as an act of remembrance. As an offering. As peoples of African descent around the world do in times of ceremony, in the name of ritual. We remember those who have come before us, who have birthed this current historical moment of awakening here in the United States. We say their names.
And, as the sounds of their names said aloud echoes, we pray. Ashé.
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Vanessa K. Valdés is associate professor of Spanish and Portuguese at The City College of New York; she is the editor of Let Spirit Speak! Cultural Journeys through the African Diaspora (2012) and The Future Is Now: A New Look at African Diaspora Studies (2012) and the book review editor of sx salon. She is the author of Oshun’s Daughters: The Search for Womanhood in the Americas (2014). The title of this essay is inspired by Josh Kun’s Audiotopia: Music, Race, and America, where he writes that his book is “focusing on the spaces of music, the spaces of songs, and the spaces of sounds” (25).
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Featured Image “Freedom Marchers” by Flickr User Keoni Cabral, Photoshop processed digital image from the Martin Luther King Center in Atlanta, Georgia (CC BY 2.0).
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REWIND! . . .If you liked this post, you may also dig:
SO! Reads: Shana Redmond’s Anthem: Social Movements and the Sound of Solidarity in the African Diaspora—Ashon Crawley
Music Meant to Make You Move: Considering the Aural Kinesthetic–Imani Kai Johnson
Black Mourning, Black Movement(s): Savion Glover’s Dance for Amiri Baraka–Kristin Moriah
Something’s Got a Hold on Me: ‘Lingering Whispers’ of the Atlantic Slave Trade in Ghana–Sionne Neely


















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