A clearer voice

A new method which will allow more effective voice discrimination has recently been developed by researchers at the University of Hertfordshire.

A new method which will allow more effective voice discrimination has recently been developed by researchers at

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Dr Aladdin Ariyaeeinia at the University’s School of Electronic Communication & Electrical Engineering and his team have been conducting research into voice biometrics (speaker recognition) for over 10 years. The process has various potential applications such as verifying individuals’ identities when they try to access cash machines or try to bank or shop online.

The team’s most recent development is a new approach to speaker change detection, a process which captures when speakers change in a given conversational audio stream which could have very useful applications in criminal investigations and in managing audio-visual recordings.

According to Dr Ariyaeeinia, their new approach, which incorporates Gaussian mixture models, is significantly more effective than any current techniques for speaker change detection.

‘We have proved that through the use of this new method, the accuracy of speaker change detection can be enhanced by 30%,’ said Dr Ariyaeeinia.

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