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Related Experiment Video

Updated: Jan 6, 2026

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
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Voice parade procedures: optimising witness performance.

Harriet M J Smith1, Katherine Bird1, Jens Roeser1

  • 1Department of Psychology, Nottingham Trent University, Nottingham, UK.

Memory (Hove, England)
|October 10, 2019
PubMed
Summary
This summary is machine-generated.

Unfamiliar voice identification is challenging. A sequential presentation method significantly improved accuracy in identifying voices compared to serial presentation, suggesting better procedures for earwitness performance.

Keywords:
Voice paradeearwitnesssystem variablesunfamiliar voice identificationvoice lineup

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Area of Science:

  • Forensic psychology
  • Auditory perception

Background:

  • Earwitness identification of unfamiliar voices is prone to errors.
  • Research into system variables influencing earwitness performance is limited.

Purpose of the Study:

  • To investigate how voice presentation methods in a lineup affect accuracy and confidence.
  • To compare serial versus sequential voice presentation procedures.

Main Methods:

  • Two experiments were conducted using target-present and target-absent voice lineups.
  • Participants identified a target voice from a nine-person parade after listening to sample durations of 15 or 30 seconds.
  • Experiment 2 compared serial (all voices at once) and sequential (one voice at a time) presentation methods.

Main Results:

  • Voice sample duration (15s vs 30s) did not affect accuracy.
  • Overall accuracy for target-present lineups was 39%; correct rejection for target-absent lineups was 6%.
  • The sequential presentation procedure yielded higher overall accuracy than the serial procedure.

Conclusions:

  • Voice presentation methods are critical system variables that can enhance earwitness accuracy.
  • The sequential procedure shows potential for improving voice identification accuracy over current recommended practices.