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

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.

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