[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-273415-105":59,"doc-detail-273415-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","the-voiceprint-fallacy-why-voices-are-not-unique-biometric-imprints","The Voiceprint Fallacy - Why Voices Are Not Unique Biometric Imprints","","The paper examines the persistent claim that voices function as unique biometric imprints analogous to fingerprints. It reviews how this idea remains embedded in standards, U.S. federal definitions, education regulations, commercial speaker-recognition systems, and technical literature. A detailed table contrasts explicit person-level statements of vocal uniqueness with weaker operational or representational framings (e.g., embeddings and voiceprints). The analysis highlights how such language sustains biometric identity metaphors despite broader rejection of the scientific validity of voiceprinting.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/the-voiceprint-fallacy-why-voices-are-not-unique-biometric-imprints/273415/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/the-voiceprint-fallacy-why-voices-are-not-unique-biometric-imprints/273415.png","ImageObject",300,407,{"name":92,"@type":93},"Anda","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-24","2026-09-15",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",14,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the main claim challenged by the paper?","Question",{"text":113,"@type":114},"The paper challenges the notion that voices are unique biometric imprints analogous to fingerprints.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"Where does the paper say the voiceprint concept continues to appear despite skepticism?",{"text":118,"@type":114},"It appears in standards and in policy or legal definitions of biometric identification, as well as in commercial voice systems and institutional materials.",{"name":120,"@type":111,"acceptedAnswer":121},"How does the paper categorize how technical literature talks about vocal uniqueness?",{"text":122,"@type":114},"It contrasts explicit person-level claims of uniqueness with weaker operational or representational formulations that describe speaker-specific patterns, signatures, embeddings, or voiceprints as unique.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},273415,1789471307,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":130,"read_time":145,"preview_page_count":4},962075006959,"https://ap-avatar.wpscdn.com/avatar/e0002397efbe92a78e?_k=1776741047341049297","The Voiceprint Fallacy: Why Voices Are Not Unique Biometric Imprints  \nTianle Yanga , Cuiling Zhangb,c,∗, Chengzhe Sund , Siwei Lyud , Phil Rosee  \na University at Buffalo, Department of Linguistics, Buffalo, NY, United States b Southwest University of Political Science and Law, Institute of Intelligent Justice, Chongqing, China c Southwest University of Political Science and Law, School of Criminal Investigation, Chongqing, China d University at Buffalo, Department of Computer Science and Engineering, Buffalo, NY, United States  \ne Australian National University, Emeritus Faculty, Canberra, ACT, Australia  \nin technological applications and policy-making contexts, and unique biometric trace analogous to a fingerprint. Yet  \n∗ Corresponding author: [cuiling-zhang@forensic-voice-comparison.net](cuiling-zhang@forensic-voice-comparison.net)  \nway voices sound and look on spectrograms\". More recently, the OSAC Standard Guide to the Forensic Speaker Recognition Landscape stated that beliefs concerning the scientific validity of voiceprinting have been rejected and discredited by the wider speaker recognition community (OSAC Speaker Recognition Subcommittee, 2024) . Nevertheless, the term and its underlying metaphor continue to appear in various authoritative documents, including legal and policy definitions of biometric identity. For example, U.S. federal law defines a “means of identification” as including “unique biometric data,” such as a“voice print,” under 18 U.S.C. § 1028 (United States Congress, 2024) . Similarly, regulations issued by the U.S. Department of Education identify voiceprints as examples of biometric records that may be used for the automated recognition of an individual, under 34 C.F.R. § 99.3 (U.S. Department of Education, 2025) . Beyond such policy definitions, the term also appears in commercial voice systems (Microsoft, 2021; Amazon, 2021), technical research on voice privacy, voice identity, and synthetic speech (Deng et al., 2023; Zhang et al., 2023a; Babu et al., 2024; Xue et al., 2026), and institutional IRB materials (University of Utah, 2025; University at Buffalo, 2026; Stanford University, 2026) .  \nMore importantly, contemporary technological research on speaker recognition, voice biometrics, and related fields continues to describe voices, voice patterns, or voiceprints as unique characteristics of individual speakers (see Table 1 for illus-  \nTable 1: Illustrative examples of vocal-uniqueness language in contemporary technical literature. Section A lists explicit person-level claims of vocal uniqueness. Section B lists weaker operational or representational formulations in which speaker-specific patterns, signatures, characteristics, embeddings, or voiceprints are described as unique. Inclusion in the table does not imply that the corresponding method requires or demonstrates absolute population-level vocal uniqueness, and the examples are not intended to quantify the prevalence of such claims in the literature.  \n\n| Year Study and context | Uniqueness formulation |\n| --- | --- |\n| A. Explicit person-level claims of vocal uniqueness |  |\n| 2018 Redesign of Gaussian Mixture Model for Efficient and Privacy- | Explicitly states that “the voice is unique for individuals” and treats voice fea- |\n| Preserving Speaker Recognition (Speaker recognition / privacy)(Rahulamathavan et al., 2018) | tures and enrolled voice templates as individual-specific biometric information. |\n| 2019 An Ultrathin Conformable Vibration-Responsive Electronic Skin | States that “each entity has a unique voice pattern” and uses this premise to |\n| for Quantitative Vocal Recognition (Voice biometrics / sensing)(Lee et al., 2019) | motivate voice authentication. |\n| 2020 Replay Spoofing Countermeasure Using Autoencoder and | States that each individual has a “unique voice pattern” that is identifiable as a |\n| Siamese Networks on ASVspoof 2019 Challenge (Automatic speaker verification) (Adiban et al., 2020) | signature. |\n| 2021 ","cbCaiteXlD9qY4Sf","https://ap.wps.com/l/cbCaiteXlD9qY4Sf","pdf",1436297,23,"English","# The Voiceprint Fallacy: Why Voices Are Not Unique Biometric Imprints\n## Policy and institutional persistence of voiceprints\n## Vocal uniqueness language in technical literature\n## Examples of explicit versus operational uniqueness formulations","[{\"question\":\"What is the main claim challenged by the paper?\",\"answer\":\"The paper challenges the notion that voices are unique biometric imprints analogous to fingerprints.\"},{\"question\":\"Where does the paper say the voiceprint concept continues to appear despite skepticism?\",\"answer\":\"It appears in standards and in policy or legal definitions of biometric identification, as well as in commercial voice systems and institutional materials.\"},{\"question\":\"How does the paper categorize how technical literature talks about vocal uniqueness?\",\"answer\":\"It contrasts explicit person-level claims of uniqueness with weaker operational or representational formulations that describe speaker-specific patterns, signatures, embeddings, or voiceprints as unique.\"}]","The Voiceprint Fallacy - Why Voices Are Not Unique Biometric Imprints | PDF",58]