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Statement from the MuScene Voice Forensics Laboratory on the Male Speaker Identity in an Unknown Recorded Tape Conversation

posted Jan 27, 2019, 7:57 PM by Voice Forensics Laboratory   [ updated Jan 27, 2019, 7:58 PM ]

Statement from the MuScene Voice Forensics Laboratory on the Male Speaker Identity in an Unknown Recorded Tape Conversation
The MuScene Voice Forensics Laboratory (MS VFL) performed this male speaker identification request submitted by the Mirror Media, the targeted voice has been claimed to be that of the 17th Karmapa Ogyen Drodul Trinley Dorje.  
In compliance with our standard procedures adopted for speaker identification tasks, our forensics expert conducting this assignment, exerted both aural and visual scrutiny at the outset over the submitted material for signs of unnatural artefacts as well as post-recording tampering.  The audio contents were continuous recording of a two-party conversation involving a female voice in the near field, and a male voice propagated through an electronic channel.  This preliminary material examination found no apparent signs for potential tampering; as such, our examiner accepted the submitted material without requesting an additional authentication procedure that would have more than doubled the total cost of this project.  The owner of this original recorded voice material would hold full responsibility over its provenance.  
Being a Buddhism celebrity, there is a wide circulation of multimedia materials of the 17th Karmapa Ogyen Drodul Trinley Dorje, and the examiner had ample exemplar resources for accessing his voice profiles through the internet.  The phonetics and phonology characteristics of the exemplar speeches were extracted, aurally and visually, from the vast quantities of multimedia playback.  These speaker-specific characteristics include, but not limited to, the range of speaker fundamental frequencies, text-dependent formant transition features, prosody, vocabulary, articulatory and phonation characteristics; other sociopsycological characteristics that can be associated with the known speaker are also noted and taken into consideration in determining the identity between the unknown and known speakers.    
With the exertion of all available analytical means, the unknown male voice in the investigated two-party conversation can be identified with high degree of confidence as that of the known voice of the 17th Karmapa Ogyen Drodul Trinley Dorje under this closed-set comparison model.
Designed to avoid irrelevant influences and to enable our examiners perform independent and unbiased forensic investigation, MS VFL is closed to public access and the only access window is through its Business Office at any one of the MuScene Studio offices throughout Taiwan.

www.voice-forensics.com


美商瓦器聲紋鑑識實驗室聲明

posted Jan 25, 2019, 2:31 AM by Voice Forensics Laboratory   [ updated Jan 25, 2019, 2:32 AM ]

美商瓦器聲紋鑑識實驗室聲明
美商瓦器聲紋鑑識實驗室針對委託人提交之Skype通話側錄聲音檔案,就男性對話方之身分是否為 第十七世大寶法王噶瑪巴鄔金欽列多傑 做科學性的鑑定,特以此聲明為鑑定工作項目所包含內容作一釐清。

委託人交付之錄音檔案內容為一連貫之兩方網路對話,經初判此聲音記錄遭到變造或是經合成手續贋製而成的可能性不高,因而此次未建議委託方做完整的剪接變造鑑定。
本次的鑑定過程是根據 第十七世大寶法王噶瑪巴鄔金欽列多傑 的多次公開演說內容作為已知語者的樣本,經分析、比對其語言學特徵、基頻位置、共振峰型態、語詞連接和轉折特性、語速、口音、音域動態等參數,並將之與送鑑樣本做比對鑑定。比對之結果為完全吻合,送鑑之疑似樣本與第十七世大寶法王噶瑪巴之聲紋基頻、共振峰型態、口音、語言學特徵等跡證均完全相符,因而下此結論。
為保障鑑識結果之公正性,確保鑑識實驗室與鑑識人員能夠獨立作業,不受威脅、利誘等情事干擾,故瓦器聲紋鑑識實驗室的接待處所、收件、成果展示與說明均統一由商業部 (瓦器錄音室)對外做處理 ; 委託方(鏡週刊)無法實質接觸第一線鑑識人員、實驗室主持人(韓肇中 博士),亦無法針對我們鑑識結果之陳述方式做任何的建議、修改或是刪減。
美商瓦器聲紋鑑識實驗室有著豐富的鑑識經驗與音頻技術,並參與了不少的跨國調查、委託案,舉凡國內著名的陸正案、台灣企銀交易紀錄變造鑑定、
香港匯豐銀行交易紀錄變造鑑識案、法院委託販毒監聽聲紋比對委託案、台灣高等法院、台南地方法院、桃園地院、屏東調查站筆錄錄音變造鑑定、2016年某立委賄選案聲紋比對、2018年某直轄市市長當選人賄選案聲紋比對、2018年某知名上市櫃軟體科技企業會議內容剪接變造鑑定等等。
我們本於企業社會責任,與民間司法改革基金會、冤獄平反協會深度合作,共同為司法改革與公正審判來努力。瓦器聲紋鑑識實驗室另外亦投入鑑識軟體的開發、航空器黑盒子訊號判讀、船舶識別與情報偵蒐解析的領域,期望能透過堅實的聲音技術與科技來保障人權、確保真相。

瓦器聲紋鑑識實驗室官方網站 : www.voice-forensics.com

圖文附件:

音頻鑑識與聲紋比對通論

posted Oct 10, 2018, 4:53 AM by Voice Forensics Laboratory   [ updated Oct 10, 2018, 5:04 AM ]

音頻鑑識與聲紋比對通論

(美商)瓦器聲紋鑑識實驗室榮幸受邀至輔仁大學跨文化研究所演講與分享音頻鑑識實務,內容涵蓋:聲紋比對/剪接編造/訊噪抑制/聲音採樣/犯罪偵查/犯罪心理學) 等相關議題,邀請希望對此專業領域更進一步了解之同業或朋友們一同前來參加與學習。 (需報名)
時間:10/11(四) AM:10:00-12:00
地點:輔仁大學跨文化研究所LB 506教室 
   (新北市新莊區中正路510號)

座談會內容綱要 : www.voice-forensics.com/home/fjcu
(美商)瓦器聲紋鑑識實驗室官方網站: www.voice-forensics.com


美商瓦器鑑識實驗室針對司法機關支援方案

posted Mar 22, 2018, 1:46 AM by Voice Forensics Laboratory

(美商)瓦器聲紋鑑識實驗室期許能夠更多實踐企業社會責任,自即日起凡屬法院囑託鑑定之委託案,檔案檢定(檢查)費低於新台幣四千五百元者將全額予以免除 ; 高於該金額者則以新台幣四千五百元為限。
本實驗室收費之技術諮詢服務針對遠端語音諮詢亦提供每季半小時免費支援方案。
官方或民間之各式援救組織(EX_民間司法改革基金會、法律扶助基金會、冤獄平反協會…)亦享有同等待遇,唯需提供相關證明文件以取得相關資格。
瓦器聲紋鑑識實驗室 : www.voice-forensics.com
聯絡瓦器實驗室 : www.voice-forensics.com/contact

籌備已久VF準備好與大家見面!!

posted Feb 23, 2017, 7:32 AM by Voice Forensics Laboratory   [ updated Feb 23, 2017, 7:57 PM ]

瓦器聲紋鑑識實驗室(MuScene Voice Forensics Laboratory)是由美商瓦器錄音室所創設之聲譜基礎研究實驗本實驗室專注於空間聲學研究、音響系統測試、隔音工法與材料研發、吸音與擴散模組研發、聲紋比對與分析、聲音信號強化、背景雜訊濾除、監聽訊號解析、剪接鑑定、聲音檔案格式轉換與變造跡證研究、環境聲紋分析與鑑定等項目。 

瓦器聲紋鑑識實驗室團隊早自2007年即已開始運作,並由史丹佛大學(Stanford University)韓博士所主持 並於20157月起自美商瓦器錄音室系統分割出來,自此獨立營運。

瓦器聲紋鑑識團隊秉持著科學、創新、效率與真確性對外提供音響工程調校、空間聲學計算、民事/刑事聲紋比對與鑑定、法庭音頻證據分析、聲音物證信號強化與雜訊濾除、法庭音頻證物剪接變造鑑定、專家證人與顧問等服務,並另外針對音響系統商、科技公司研發計畫、語者識別系統開發商、聲學模組與隔音避震設計等需求提供客製化的技術合作與智財輸出。

我們依然承襲著母公司瓦器錄音室優良的工程師文化與精神,並持續於尖端聲音工程領域從事研究與應用發展,期許持續走在科技的尖端,同時以我們的專業服務廣大人群,還原聲音最原始的本質與真相。                    

美商瓦器聲紋鑑識實驗室 / MuScene Voice Forensics LaboratoryLTD. 統一編號 : 54282596

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