Adaptation to Room Acoustics Using the Modified Rhyme Test

Area of Science:

• Auditory perception
• Acoustic signal processing
• Psychoacoustics

Background:

• Reverberant sound negatively impacts speech intelligibility.
• Prior exposure to room acoustics can enhance intelligibility in simulated environments.
• This room adaptation effect is specific to reverberant conditions and requires binaural hearing.

Purpose of the Study:

• To investigate if the room adaptation effect is specific to the Coordinated Response Measure (CRM) corpus.
• To determine if the intelligibility enhancement generalizes to other speech intelligibility tests.
• To confirm the room adaptation effect using the Modified Rhyme Test (MRT) corpus.

Main Methods:

• Participants were exposed to different room acoustic conditions.
• Speech intelligibility was assessed using the Modified Rhyme Test (MRT) corpus.
• The study was conducted in multiple reverberant room environments.

Main Results:

• A comparable room-acoustic effect was observed using the MRT corpus.
• The intelligibility scores increased due to prior exposure to reverberant environments.
• The findings were consistent across different room environments.

Conclusions:

• The room adaptation effect is not limited to the CRM task.
• This phenomenon may be a natural auditory adaptation to reverberant listening conditions.
• Prior experience with room acoustics enhances speech intelligibility in echoic settings.