Related Experiment Video
Updated: Jun 25, 2026

Memorization-Based Training and Testing Paradigm for Robust Vocal Identity Recognition in Expressive Speech Using Event-Related Potentials Analysis
Published on: August 9, 2024
A test of the effectiveness of speaker verification for differentiating between identical twins
Aladdin Ariyaeeinia1, Christopher Morrison, Amit Malegaonkar
1Faculty of Engineering and Information Sciences, University of Hertfordshire, College Lane, Hatfield, Hertfordshire, AL10 9AB, UK. a.m.ariyaeeinia@herts.ac.uk
Abstract:
This paper presents investigations into the ability of speaker verification technology to discriminate between identical twins. It is shown that whilst, in general, the genetic and non-genetic characteristics of voice are both of value to speaker verification capabilities, it is the latter which is highly beneficial in the separation of the speech of identical twins. It is further demonstrated that through the use of unconstrained cohort normalisation as a complementary means for the exploitation of such voice characteristics, the verification reliability can be considerably enhanced for both identical twins and unrelated speakers. Experiments were conducted using a bespoke clean-speech database consisting of utterances from 49 identical twin pairs. The paper details the problem in speaker verification posed by identical twins, discusses the experimental investigations and provides an analysis of the results.
Related Concept Videos
Test for Homogeneity
Sign Test for Matched Pairs
To conduct the sign test, we first calculate the differences in value between...
Comparing Experimental Results: Student's t-Test
Causes of Similarity-Dissimilarity Effect
Significance Testing: Overview
One-Way ANOVA: Equal Sample Sizes
Different sample means can result in different values for the variance estimate: variance between samples. This is because the variance between samples is calculated as the product of the sample size and the variance between the...

