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Removing low-frequency masker energy improves speech intelligibility by 0.65 dB per dB

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tags	ja-picks, factual_claims, trade, singleton, category/factual-claims

Sep 20, 20261 min read

Removing low-frequency masker energy improves speech intelligibility by 0.65 dB per dB

Evidence

SRTs decreased linearly with a slope of ‑0.65 dB SRT/dB attenuation indicating an improvement of speech intelligibility by filtering out the low frequencies in the masker signal. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3556

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Removing low-frequency masker energy improves speech intelligibility by 0.65 dB per dB
Evidence

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Filtering target or masker shifts SRTs until SNR effects asymptote
Improving the SNR by reducing noise helps speech more than raising the target.
Overly loud speech masks its own higher frequencies and gets less intelligible
Raising presentation level reduces the masking-release advantage from spectrally sparse or unmodulated maskers
The better-ear advantage yields an 8 dB speech-recognition benefit in noise
Dijk, Pim van — Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing

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Removing low-frequency masker energy improves speech intelligibility by 0.65 dB per dB

Removing low-frequency masker energy improves speech intelligibility by 0.65 dB per dB

Evidence

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