{"closest_prior_art":[{"name":"Controlled absorption experiment on unamplified talkers","overlap":"Thirty-two participants spoke without amplification while absorptive wedges varied room acoustics in randomized conditions; impulse-response measures and vocal parameters tested how the physical field changes vocal production.","remaining_difference":"It did not study oral epic, formula selection, caesura, refrain, chorus response, literary annotation, or fixed-field substitution of tradition-competent performers.","source_ids":["SRC2","SRC3"]},{"name":"Experimental virtual archaeological-acoustics and historically informed performance research","overlap":"EVAA combines acoustic measurement or reconstruction with performers, audiences, historians, performance scholars, and heritage stakeholders; projects examine how reconstructed rooms affect spoken voice, singing, musical gesture, and historically informed performance.","remaining_difference":"The retained page does not report the proposal's crossed experiment: multiple oral-epic performers delivering one passage under fixed and relaxed acoustic conditions with synchronized respiratory and literary-form outcomes.","source_ids":["SRC4"]},{"name":"Performance-sensitive analysis of South Slavic epic presentation formulas","overlap":"Elmer analyzes formula variants, performer idiolect, audience address, and differences among sung, recited, and dictated renditions; he links formulas to audience attention and performers' monitoring through tempo, melody, and eye contact.","remaining_difference":"The study compares archival performance modes rather than calibrated acoustics, masking, distance, respiratory load, or controlled performer substitution.","source_ids":["SRC1"]}],"contrastive_claim_falsifier":"Distinctness would be falsified by locating an earlier study that crosses tradition-competent performer substitution with calibrated acoustic relaxation for the same oral-epic passage and jointly annotates formula, pause, refrain, response, intelligibility, and respiratory outcomes. Experimental leverage would be falsified if verified acoustic changes produce no reproducible formal or respiratory changes beyond within-performer variation.","contrastive_claim_remaining":"For one authorized oral-epic passage, a crossed design combining fixed-field performer substitution with within-performer acoustic relaxation may distinguish condition-sensitive formal effects from performer-sensitive ones. The retained prior art separately establishes performance-sensitive epic formulas, acoustic effects on voice, standardized measurement, and historical-performance reconstruction, but not that joint contrast.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"The bounded search covered direct formulations, oral-formulaic and ethnopoetic terminology, archaeoacoustics and historical-performance practice, an official performance-space standard, and component combinations involving absorption, vocal exertion, performers, audiences, and reconstruction. Four opened sources span four publishers; no exact integrated study was located, which is not evidence of novelty.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"A counterbalanced three-performer pilot on one short passage and three acoustic conditions is bounded and uses established room-measurement and absorption-manipulation methods. It remains conditional on calibration, authorization, voice limits, order controls, and a preregistered stopping assessment.","source_ids":["SRC2","SRC3","SRC4"],"status":"PASS"},"distinct_testable_claim":{"rationale":"Existing work tests acoustic effects on vocal production and analyzes oral-epic formulas in differing performance circumstances, but the retained sources do not combine fixed-field performer substitution, within-performer physical relaxation, and blinded literary-form annotation. That remaining contrast has observable outcomes and an explicit null result.","source_ids":["SRC1","SRC2","SRC4"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"No categorical stop is visible for performer-free calibration or a consented pilot. Comparable research uses controlled, unamplified participation and calibrated acoustic conditions, while heritage-acoustics projects involve stakeholders and legal specialists. The proposal appropriately makes cultural authority, individual withdrawal, and voice-safety limits controlling conditions.","source_ids":["SRC2","SRC3","SRC4"],"status":"PASS"},"supported_problem":{"rationale":"The literature shows that oral-epic formulas and audience-directed devices vary with performance circumstances, while controlled acoustics alter unamplified vocal behavior and heritage-performance research treats sound space as historically consequential. This supports the general attribution problem, although the asserted omission has not been verified for the particular passage.","source_ids":["SRC1","SRC2","SRC4"],"status":"PASS"}},"prior_art_disposition":"ADJACENT_PRIOR_ART","problem_evidence":{"finding":"The general problem is visible: oral-epic scholarship documents composition-in-performance, performer-specific formula systems, and audience monitoring, while acoustic experiments demonstrate that absorption, reverberation, clarity, and room gain can change vocal behavior. Heritage-acoustics programs already connect reconstructed spaces with performance research. Evidence is only partial because no selected case analysis was supplied or found showing that a specific celebrated passage currently conflates performer, tradition, acoustics, respiration, and collective response.","source_ids":["SRC1","SRC2","SRC4"],"status":"PARTLY_SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P052","screen_survival":true,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["oral poetry breathing phrase length acoustics intelligibility unamplified performance","performers adapt voice to room acoustics reverberation singer experiment Lombard effect speech","site:pmc.ncbi.nlm.nih.gov room acoustics vocal effort absorption reverberant room experiment speech","experimental archaeology ancient performance venue acoustics performer reconstruction"],"source_ids":["SRC2","SRC4"]},"direct_problem_and_intervention":{"no_result_note":"No retained source implemented the full oral-epic crossed performer-by-acoustic-condition intervention.","queries":["oral epic performance acoustics formulaic composition venue reverberation audience response","oral epic performance singer audience interaction formula variation ethnography journal","oral epic singer breath pauses formulas performance acoustics audience Yugoslav guslar"],"source_ids":["SRC1","SRC2","SRC4"]},"products_practices_and_standards":{"no_result_note":null,"queries":["ISO 3382 reverberation time performance spaces speech intelligibility standard","experimental virtual archaeological acoustics historical performance reconstruction performers audience","heritage acoustics reconstructed performance space singers musicians"],"source_ids":["SRC3","SRC4"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["ethnopoetics oral performance lineation pause audience interaction acoustics","Albert Lord Singer of Tales formula substitution performance singer audience online","oral-formulaic composition South Slavic epic presentation formulas audience","archaeoacoustics historical performance voice reconstruction"],"source_ids":["SRC1","SRC4"]}},"sources":[{"claims_supported":["South Slavic epic is composed in performance through manipulation of traditional themes and verbal formulas rather than reproduction of a fixed text.","Presentation-formula frequencies differ across sung, recited, and dictated texts, with a tendency toward higher frequency in sung performances.","Singers monitor audiences and use formula choice, melody, tempo, and eye contact to manage attention."],"publisher":"Center for Studies in Oral Tradition, University of Missouri","source_id":"SRC1","source_type":"PRIMARY_RESEARCH","title":"Presentation Formulas in South Slavic Epic Song","url":"https://journal.oraltradition.org/wp-content/uploads/files/articles/24i/03_24.1.pdf"},{"claims_supported":["Thirty-two subjects spoke without reinforcement under randomized room conditions produced with varying quantities of absorptive wedges.","The study measured reverberation time, early decay time, speech clarity, speech transmission index, and room gain using impulse-response methods.","Changes in room acoustics were associated with changes in vocal parameters, supporting both the mechanism and feasibility of a small controlled manipulation."],"publisher":"Acoustical Society of America","source_id":"SRC2","source_type":"PRIMARY_RESEARCH","title":"Effects of Added Absorption on the Vocal Exertions of Talkers in a Reverberant Room","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC6372363/"},{"claims_supported":["ISO 3382-1 specifies methods, apparatus, coverage, evaluation, and reporting for reverberation time and other room-acoustic parameters in performance spaces.","Impulse-response measurement provides an official methodological basis for performer-free calibration."],"publisher":"International Organization for Standardization","source_id":"SRC3","source_type":"OFFICIAL_STANDARD","title":"ISO 3382-1:2009 — Acoustics — Measurement of Room Acoustic Parameters — Part 1: Performance Spaces","url":"https://www.iso.org/standard/40979.html"},{"claims_supported":["Heritage-acoustics programs combine acoustic reconstruction with historians, performance researchers, performers, audiences, and heritage stakeholders.","Projects use acoustic simulations to study historic spoken voice, musician technique, singing, audience reception, and historically informed performance.","The program explicitly acknowledges reconstruction uncertainty and includes stakeholder and intangible-cultural-heritage legal expertise."],"publisher":"Institut Jean le Rond d'Alembert, Sorbonne Université and CNRS","source_id":"SRC4","source_type":"OTHER","title":"Experimental Virtual Archaeological-Acoustics","url":"https://evaa.lam.jussieu.fr/doku.php"}],"world_novelty_boundary":"This coarse four-source screen establishes only that the proposal is researchable and adjacent to several mature practices. Failure to locate the exact crossed design cannot establish world novelty, patentability, market size, expert acceptance, realized value, or absence from unindexed scholarship, patents, community practice, restricted archives, or non-English literature."}