What is it about?
We investigated the effects of feedback delays and amplification on both adaptive and reflexive fundamental frequency perturbation paradigms, encapsulating the variability in equipment-specific delays (3–45 ms) and amplification utilized in previous experiments.
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Why is it important?
Surprisingly, we found that equipment delays below 100 ms do not affect the results of fo perturbation paradigms. We also determined that auditory feedback amplification of +5 dB relative to microphone is sufficient to elicit robust compensatory responses for fundamental frequency perturbations
Perspectives
This is wonderful news since it means that you don't have to expose study participants to high intensity feedback, which has the potential to cause hearing damage, if exposed for long periods of time.
Hasini Weerathunge
Boston University
Read the Original
This page is a summary of: Auditory-Motor Perturbations of Voice Fundamental Frequency: Feedback Delay and Amplification, Journal of Speech Language and Hearing Research, September 2020, American Speech-Language-Hearing Association (ASHA),
DOI: 10.1044/2020_jslhr-19-00407.
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