Channel variability synthesis in i-vector speaker recognition

Ahmed Isam Ahmed, John Chiverton, David Ndzi, Victor Becerra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


In this paper, we are tackling a practical problem which can be faced when establishing an i-vector speaker recognition system with limited resources. This addresses the problem of lack of development data of multiple recordings for each speaker. When we only have one recording for each speaker in the development set, phonetic variability can be simply synthesised by dividing the recordings if they are of sufficient length. For channel variability, we pass the recordings through a Gaussian channel to produce another set of recordings, referred to here as Gaussian version recordings. The proposed method for channel variability synthesis produces total relative improvements in EER of 5%.
Original languageEnglish
Title of host publication​IET 3rd International Conference on ​​Intelligent Signal Processing (ISP 2017)
Number of pages6
ISBN (Electronic)978-1-78561-708-9
ISBN (Print)978-1-78561-707-2
Publication statusPublished - 4 Dec 2017
Event​IET 3rd International Conference on ​​Intelligent Signal Processing - Savoy, London, United Kingdom
Duration: 4 Dec 20175 Dec 2017


Conference​IET 3rd International Conference on ​​Intelligent Signal Processing
Abbreviated titleISP 2017
Country/TerritoryUnited Kingdom
Internet address


  • multi-condition training
  • session variability
  • i-vector


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