Basilar membrane gain is low-pass filtered before it acts.

Evidence

Response energy at each harmonic of the beat rate decreases as the beat rate increases (Fig. 2 a ), suggesting that envelope gain is subjected to a low-pass filtering (or smoothing) process before it is observed on the BM: this is the spectral counterpart to the decreased gain at higher beat rates (point 2) referred to above. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3628

Categorization

Category: Causal Relationships

Related

• Cochlear envelope gain is low-pass filtered and decreases with faster beats (similarity 0.91)
• Basilar membrane responses show asymmetric attack and decay dynamics at high beat rates (similarity 0.85)
• Rapid intensity changes linearize the basilar membrane’s compressive response. (similarity 0.84)
• Basal cochlear gain control is fast but limited to about 1 kHz bandwidth. (similarity 0.83)
• Each basilar membrane location acts as a bandpass filter tuned to a center frequency (similarity 0.81)
• Fast amplitude modulations skip cochlear compression and get enhanced coding (similarity 0.81)
• Basilar membrane displacement produces an asymmetric filter response across frequency. (similarity 0.81)
• The auditory system acts as a band-pass filter at each signal frequency. (similarity 0.81)
• Gammatone filters match the auditory nerve’s measured impulse response (similarity 0.80)
• Broad-spectrum sounds read as louder because auditory bands integrate across the basilar membrane (similarity 0.80)
• The basilar membrane’s mechanics enable the inner ear’s frequency analysis (similarity 0.79)
• The ear functions as a bank of frequency-selective filters tuned to basilar membrane places (similarity 0.79)
• The basilar membrane’s tapering shape enables it to sort sounds by frequency. (similarity 0.79)
• Basilar membrane linearization trades sensitivity for enhanced coding of fast-changing stimuli. (similarity 0.79)
• Frequency sorting in the basilar membrane can be reproduced in physical models (similarity 0.79)