Towards a protocol in speaker recognition analysis (original) (raw)

(2004) Towards a protocol in speaker recognition analysis

On all sides there is an increasing need for a protocol in speaker recognition analysis. This need arises not only in the scientific word, but corresponds also to a requirement of guarantee and protection of all the individuals involved in criminal lawsuits. This study aims neither to resolve the problem of the protocol and of the fundamental steps in a speaker recognition analysis, nor to impose a precise methodology to be followed, but is an attempt to stir the stagnant waters of the debate on expert report phonic analysis. The most important steps in the realisation of a phonic expertise are outlined as a basis and a starting point for a future protocol to which should follow the establishment of a phonic experts list.

Speaker Recognition in the forensic field: the centrality of a multilevel linguistic analysis

ODYSSEY 2016: THE SPEAKER AND LANGUAGE RECOGNITION WORKSHOP June 21-24, 2016, Bilbao, Spain This paper aims at demonstrating the importance of a multilevel linguistic analysis in forensic Speaker Recognition. The work focuses on the problems related to the identification of speakers of Italian, belonging to different mother languages or specific Italian dialectal varieties.

The Importance of Voice Identification in the Witness Recognition Procedure

Tm-technisches Messen, 2020

From a theoretical point of view, this paper considers the evidentiary action of recognizing the voice of the perpetrator by the witness. It is the identification of the voice by a person who is usually an "unprofessional listener". Due to the specificity of the voice as an object of recognition, the involvement of forensics (linguists and phoneticians) in the organization and immediate realization of the voice recognition action seems inevitable. Their activity would be manifested in giving guidance to the authority on how to increase the efficiency of voice identification and the accuracy of witness testimony. The witness gives evidence based on his perceptual (auditory) abilities in a procedure prescribed by the law, in which the credibility of his/her testimony is simultaneously checked and assessed. The Criminal Procedure Code of the Republic of Serbia establishes the legal framework for taking the voice recognition action, while the content of performing the direct r...

Analysis of Methods and Techniques Used for Speaker Identification, Recognition, and Verification: A Study on Quarter-Century Research Outcomes

Iraqi Journal of Science

The theories and applications of speaker identification, recognition, and verification are among the well-established fields. Many publications and advances in the relevant products are still emerging. In this paper, research-related publications of the past 25 years (from 1996 to 2020) were studied and analysed. Our main focus was on speaker identification, speaker recognition, and speaker verification. The study was carried out using the Science Direct databases. Several references, such as review articles, research articles, encyclopaedia, book chapters, conference abstracts, and others, were categorized and investigated. Summary of these kinds of literature is presented in this paper, together with statistical analyses to represent the publications and their categories over the mentioned period. Important information, including the dataset used, the size of the data adopted, the implemented methods, and the accuracy of the obtained results in the analysed research, are extracted...

Study of Speaker Verification Methods

Speaker verification is a process to accept or reject the identity claim of a speaker by comparing a set of measurements of the speaker‘s utterances with a reference set of measurements of the utterance of the person whose identity is claimed.. In speaker verification, a person makes an identity claim. There are two main stages in this technique, feature extraction and feature matching. Feature extraction is the process in which we extract some useful data which can later to be used to represent the speaker. Feature matching involves identification of the unknown speaker by comparing the feature extracted from the voice with the enrolled voices of known speakers.

A graphical framework for the evaluation of speaker verification systems. Imperial College, MSc thesis

2000

guidance, help and support given throughout the course of the project. I would also like to express my greatest gratitude to Dr. T. Stathaki for her help, guid-ance and support throughout this year at Imperial College. Most of all, I would like to thank my family for their great support during this year at Imperial College and throughout my five years of undergraduate study at the Aristotle University of Thessaloniki, Greece. Biometric identification methods are trying to replace traditional identification meth-ods such as PIN numbers, identity cards etc. One of the common biometrics that can be used to identify a person's identity is speech. Speaker verification systems accept or reject the identity claim of a speaker by comparing a set of measurements of his speech with a reference set of measurements of the speech of the person whose identity is claimed. Many speaker verification systems were proposed and developed in the last decade with good performance. The basic aim of t...

Speaker Recognition System and its Forensic Implications

2013

Speaker recognition comprises all those activities which attempt to link a speech sample to its speaker through its acoustic or perceptual properties [1]. Speech signal is a multidimensional acoustic wave (Figure 1), which provides information regarding speaker characteristics, spoken phrase, speaker emotions, additional noise, channel transformations etc [2,3]. The human voice is unique personal trait. For indistinguishable voice, the two individuals should have the identical vocal mechanism and identical coordination of their articulators, which is least probable. However, the some amount variations also occur in the speech exemplars obtained from the same speaker. This is due to the fact that a speaker cannot exactly imitate the same utterance again and again. Even, the signature of an individual also shows variation from trails to trials.

Evaluation of a foreign language speaker in forensic phonetics: A report

1996

Expert witnesses in phonetics find themselves more and more ofren in forensic situations in which they have ro idenrif}r rhe voice of a speaker who does nor speak rheir native language. Unril recently, little has been known about rhe role which rhe nativelanguage background of rhe listener plays in such speaker idenrificarion tasks . . In this reporr, several aspects of an experimenral investigation on rhe influence of native-language background on speaker idenrification are reviewed. Results of a first experimenr are reported and some follow-up experimenrs currently being carried our are described within rhar conrexr.