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Further test of a model for loudness coding after adaptation
British Journal of Audiology
|February 1, 1980
Summary
This study tested a loudness coding model using simultaneous dichotic loudness balance (SDLB) data. The model accurately predicted loudness adaptation, suggesting it effectively explains auditory coding mechanisms.
Area of Science:
- Auditory perception
- Psychoacoustics
- Quantitative modeling
Background:
- Loudness perception is complex.
- Quantitative models aid understanding.
- Weiler and Hood (1977) proposed a loudness coding model.
Purpose of the Study:
- To evaluate Weiler and Hood's (1977) quantitative model for loudness coding.
- To test the model's fit with simultaneous dichotic loudness balance (SDLB) adaptation data.
Main Methods:
- Collected adaptation data from 12 normal-hearing listeners.
- Applied Weiler and Hood's (1977) quantitative model.
- Analyzed prediction errors for test values 10 dB above adapting intensity.
Main Results:
- Prediction errors ranged from -2.7 to -4.7 dB.
- The average prediction error was -3.5 dB.
- The standard deviation of prediction error was very small (+/- 0.737 dB).
Conclusions:
- The loudness model accounts for coding in SDLB adaptation results.
- Small, consistent prediction errors suggest procedural influences.
- The model provides a valid framework for understanding loudness coding.