SRC - Sound as Weapon
Folder: 05 - SOURCE MATERIAL Supporting: Sound as Weapon
LRAD — Primary Sources
Wikipedia — Long-Range Acoustic Device https://en.wikipedia.org/wiki/Long-range_acoustic_device Comprehensive documented history. USS Cole origin confirmed. G20 Pittsburgh 2009 first US civilian deployment confirmed. All deployment locations confirmed. Court cases confirmed. Manufacturer claims confirmed. Updated February 2026.
AFSC Investigate — Genasys Inc. https://investigate.afsc.org/company/genasys Confirmed: used in 100+ countries 500+ US cities. All protest deployments confirmed. Court settlements confirmed. Pittsburgh 2012 settlement confirmed. NYPD 2021 settlement confirmed.
Physicians for Human Rights — Acoustic Weapons Health Report https://phr.org/our-work/resources/health-impacts-of-crowd-control-weapons-acoustic-weapons/ Confirms: first military use Iraq 2004. 1990s infrasound research confirmed. Health impacts documented. LRAD hearing damage confirmed. Limited peer reviewed research on full spectrum of effects — confirmed.
Article 36 — Acoustic Weapons Legal Analysis https://article36.org/wp-content/uploads/2019/06/acoustic-weapons.pdf Second Circuit Edrei v Bratton ruling — excessive force — confirmed. Waco children acoustic assault Stone Report confirmed. Infrasound weapon program US Joint Non-Lethal Weapons Program funding stopped — confirmed.
Richmond Journal of Law and Technology — LRAD Legal Analysis https://jolt.richmond.edu/2019/11/30/lrad-the-sound-of-possible-excessive-force/ G20 Pittsburgh first documented use confirmed. Second Circuit ruling confirmed. Legal framework documented.
The Conversation — LRAD Explainer https://theconversation.com/whats-an-lrad-explaining-the-sonic-weapons-police-use-for-crowd-control-and-communication-177442 2,000–4,000 Hz design frequency for maximum human ear sensitivity confirmed. Karen Piper permanent hearing loss G20 2009 confirmed.
ASHA Statement — June 2020 American Speech-Language-Hearing Association: LRADs can cause serious permanent hearing loss. https://www.asha.org/news/2020/long-range-acoustic-devices-for-crowd-control-can-cause-serious-hearing-loss/
ACLU Fact Sheet Recommended suspension of LRAD use in protests pending adequate safety studies. https://www.aclu.org/sites/default/files/field_document/acoustic_weapons.pdf
Infrasound — Biological Effects
PMC — Narrative Review 2025 “Infrasound in Biology and Medicine: Insights into Mechanisms Health Outcomes and Research Perspectives” https://pmc.ncbi.nlm.nih.gov/articles/PMC12818516/ Comprehensive peer reviewed review. 5 Hz at 130 dB apoptotic effects confirmed. 20 Hz at 163 dB cochlear damage confirmed. 8 Hz hippocampal calcium effects confirmed. Therapeutic applications documented. Dose-response relationship confirmed. Not all low-level exposure harmful — confirmed.
ScienceDirect — Sonic Weapons Injury Review (April 2025) https://www.sciencedirect.com/science/article/pii/S1008127525000495 Chinese military medicine review. Infrasound thresholds documented: 90 dB generally not harmful. 120 dB damage threshold. 140 dB causes harm. 150 dB 2–3 minutes irreversible damage. Frequency impact order confirmed. Biological membrane damage mechanism via free radicals confirmed. LRAD documented in same paper.
PMC — Same paper (2025) https://pmc.ncbi.nlm.nih.gov/articles/PMC12892060/ Additional confirmation of infrasound biological mechanisms.
The Honest Counterargument
Military Medicine — Jauchem and Cook (2007) “High-Intensity Acoustics for Military Nonlethal Applications: A Lack of Useful Systems” Published Oxford Academic. https://academic.oup.com/milmed/article-pdf/172/2/182/21980618/milmed.172.2.182.pdf Confirms: nonlethal weapon capabilities of audible sound generators grossly overstated. Joint Non-Lethal Weapons Program stopped infrasound funding confirmed. “Unlikely” conclusion confirmed.
Deutsche Stiftung Friedensforschung — Altmann “Acoustic Weapons” research paper. Infrasound does not have alleged drastic effects on humans — Altmann’s conclusion confirmed. Cited in Article 36 paper above.
Vic Tandy — Ghost Frequency
Tandy, V. & Lawrence, T.R. (1998) “The Ghost in the Machine” Journal of the Society for Psychical Research 62(851):360–364. Original paper documenting 18.9 Hz extractor fan effect. Eyeball resonance mechanism at approximately 18–19 Hz confirmed. Confirmed haunted locations subsequently investigated.
Psychological Warfare / Music
Operation Wandering Soul Vietnam War ghost tapes confirmed. Multiple military history sources.
Waco Siege Acoustic Assault Stone Report — submitted to Deputy Attorney General Philip Heymann — November 1993. FBI acoustic campaign confirmed. Children affected confirmed. Referenced in Article 36 paper above.
Guantanamo / Abu Ghraib Music as interrogation technique documented in detainee testimony and military records. Human Rights Watch and Physicians for Human Rights reporting confirmed.
Brown Note
Biology Insights — December 2025 https://biologyinsights.com/is-the-brown-note-real-what-science-actually-says/ Scientific verdict: not supported. MythBusters testing at extreme levels no effect confirmed. Air inefficiency as medium confirmed. High-intensity infrasound does produce verifiable physiological responses at extreme levels — confirmed. The specific alleged effect of the brown note: unsupported.
Still To Source
- NYPD 2021 LRAD settlement — full terms of agreement New York Times April 19 2021 #investigate
- Standing Rock LRAD use — specific documented injuries #investigate
- COINTELPRO acoustic harassment — specific documented use of sound techniques against domestic targets investigate
- Current US military infrasound research status — post Joint Non-Lethal Weapons Program investigate
- 18–19 Hz eyeball resonance — peer reviewed confirmation beyond Tandy’s original paper #investigate