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Neural auditory processing of parameterized speech envelopes.

Robin Gransier1, Jan Wouters1

  • 1ExpORL, Department of Neurosciences, KU Leuven, 3000 Leuven, Belgium; Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium.

Hearing Research
|November 20, 2021
PubMed
Summary
This summary is machine-generated.

Understanding the neural representation of the speech envelope is key to addressing hearing loss. The Temporal Envelope Speech Tracking (TEMPEST) framework offers a new way to assess and improve speech processing for hearing prosthesis users.

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Area of Science:

  • Auditory Neuroscience
  • Speech Processing
  • Audiology

Background:

  • Speech perception relies heavily on neural processing of the speech envelope.
  • Auditory deficits can reduce the fidelity of neural speech envelope representations, leading to speech processing issues.
  • Understanding these mechanisms is crucial for developing better hearing prostheses.

Purpose of the Study:

  • To discuss the audiological importance of neural assessment of phase-locking to the speech envelope.
  • To introduce the Temporal Envelope Speech Tracking (TEMPEST) stimulus framework.
  • To enable electrophysiological assessment of envelope processing across the auditory pathway.

Main Methods:

  • Introduction of the Temporal Envelope Speech Tracking (TEMPEST) stimulus framework.
  • Systematic and standardized electrophysiological assessment of envelope processing.
  • Evaluation of neural encoding of speech-like temporal envelopes.

Main Results:

  • The TEMPEST framework enables systematic assessment of auditory pathway envelope processing.
  • It provides insights into the salience of speech envelopes in the neural code.
  • It can evaluate the effectiveness of auditory prosthesis stimulation strategies.

Conclusions:

  • The TEMPEST framework is valuable for understanding neural speech envelope processing.
  • It aids in developing and evaluating hearing prosthesis strategies for temporal processing restoration.
  • This approach can improve speech perception in individuals with auditory processing deficits.