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Cued Speech Enhances Speech-in-Noise Perception.

Clémence Bayard1, Laura Machart1, Antje Strauß2

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Summary
This summary is machine-generated.

Cued Speech (CS) significantly improves speech perception in noise for individuals with hearing loss. Combining lipreading with CS helps Deaf/Hard of Hearing (D/HH) people understand speech in challenging auditory environments.

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Area of Science:

  • Audiology
  • Speech and Hearing Sciences
  • Neuroscience

Background:

  • Speech perception in noise is a significant challenge for individuals who are Deaf/Hard of Hearing (D/HH), even with hearing aids or cochlear implants.
  • Lipreading (visual speech information) aids understanding but is often insufficient in noisy conditions.

Purpose of the Study:

  • To evaluate the effectiveness of Cued Speech (CS) in enhancing speech perception in noise for D/HH individuals.
  • To compare speech perception across audio-only, audiovisual, and audiovisual + CS conditions.

Main Methods:

  • Twenty D/HH participants using Cued Speech (CS) and 15 typically hearing (TH) controls completed sentence recognition tasks.
  • Three listening conditions were tested: audio-only, audiovisual, and audiovisual with CS.
  • Performance was measured using signal-to-noise ratios (SNRs) and percentage correct scores.

Main Results:

  • D/HH participants required an 11 dB higher SNR than TH controls for similar audiovisual speech perception.
  • In the audiovisual + CS condition, D/HH participants achieved 83% accuracy at a 0 dB SNR.
  • This performance with CS was comparable to TH participants' audio-only performance at the same SNR.

Conclusions:

  • The Cued Speech (CS) system, combined with lipreading, is crucial for improving speech intelligibility in noise for D/HH individuals.
  • CS significantly enhances speech perception, particularly in adverse acoustic environments, mitigating challenges faced by D/HH users of hearing aids or cochlear implants.