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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

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Published on: September 27, 2024

Effects of Practice Variability on Second-Language Speech Production Training.

Lindsay Bu¹, Marisa Nagano², Daphna Harel³

¹Department of English, Harvard University, Cambridge, Massachusetts, USA.

Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)

|October 18, 2020

Summary

High-variability practice aids short-term speech-motor learning for English rhotic acquisition. However, long-term learning gains were limited for both high and low variability practice conditions in Korean adults.

Keywords:

L2 learning Motor speech Rhotics Speech production

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Area of Science:

Speech-language pathology
Motor learning principles
Second language acquisition

Background:

Mastering second language (L2) phonetics requires speech-motor skills.
Motor learning principles may enhance L2 pronunciation for native-like speech.

Purpose of the Study:

Investigate the impact of practice variability on L2 speech-motor learning.
Determine if high versus low variability practice improves English rhotic production in Korean adults.

Main Methods:

Employed a single-subject across-behaviors design with 8 Korean adult participants.
Participants practiced English rhotics using an intraoral placement device.
Assigned participants to either low-variability (single word) or high-variability (multiple words) practice conditions.

Main Results:

High-variability practice showed a short-term advantage over low-variability practice.
Long-term learning was limited across both practice conditions.

Conclusions:

High-variability practice shows promise for short-term speech-motor gains.
Further research needed to enhance long-term generalization of L2 speech skills.
Future studies should combine high-variability practice with other methods to improve long-term learning.