Beamformer performance limits in monaural and binaural hearing aid applications
Why this work is in the frame
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Bibliographic record
Abstract
This paper investigates the performance limits of beamforming algorithms in monaural and binaural multi-microphone hearing aids. Directional microphones and minimum variance distortionless response (MVDR) beamformer designs are reviewed in the context of hearing aids. A general binaural filter-and-sum beamformer structure is described based on combining microphone signals from right and left hearing aids. The monaural and binaural algorithms are evaluated with respect to directivity pattern, directivity index, and noise gain. Simulation results show that for a frontal source signal, a binaural beamformer is capable of increasing the directivity by approximately 3 dB compared to a single-array beamformer, but with no increase in the noise gain.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it