Head-related pressure reflections and binaural hearing boost sensitivity by about 6-12 dB
Evidence
The peak sensitivities shown in this figure are equivalent to a sound pressure amplitude in the sound wave of 10 Pa or about 6 dB(SPL). Note that this is for monaural listening to a sound presented at the front of the listener. For sounds presented on the listening side of the head there is a rise in peak sensitivity of about 6 dB due to the increase in pressure caused by reflection from the head. There is also some evidence that the effect of hearing with two ears is to increase the sensitiv ity by between 3 and 6 dB. — David Howard, Jamie Angus, coustics and Psychoacoustics, 634
Categorization
- corroborated: 2 independent passages support this claim — David Howard, Jamie Angus, coustics and Psychoacoustics, 634
- XREF: connects to: Head shadowing gives roughly 6 dB interaural amplitude difference near 1.85 kHz; Acoustic head shadow creates a better ear with higher SNR in everyday listening; Binaural hearing yields up to 18 dB detection advantage for low-frequency signals (+3 more)
Broader Connections
- Binaural hearing yields up to 18 dB detection advantage for low-frequency signals
#corroborates(0.85) - Binaural hearing separates direct and reflected sound while monaural microphones cannot
#expands(0.80) — Toole, Floyd E, Sound reproduction- the acoustics and…, 376 - Binaural phase disparities improve tone detection by up to 25 dB.
#corroborates(0.80)