Dominant pitch models derive pitch from auditory nerve spike timing.

Evidence

The Matlab code in Section 13.6.1 produces the outputs plotted in Figure 13.12, demonstrating the effects of the different processing steps. Figure 13.12a shows the waveform of the vowel signal, and the outputs of the filter bank are shown in Figure 13.12b. The latter plot is often referred to as a cochleogram. In addition, the signals following the hair-cell processing are shown in Figure 13.12c, while the correlogram and the summary autocorrelation function are illustrated in Figure 13.12d. The last of the graphs shows a clear peak at 9 ms that corresponds to the fundamental frequency of 110 Hz of the vowel input. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1655 (#corroborates, via linked claim)

If pitch is not determined by periodicity, perhaps then by autocorrelation? Now we are getting somewhere. The first major peak in the autocorrelation after the ever-present peak at time 0 in the preceding example occurs at 0.00956 second, which corresponds to 104.6 Hz. If sounds resolve into several distinct pitches, these will have corresponding peaks in the autocorrelation. Pitch is associated with something more important than the presence or absence of a single partial: its tendency to repeat itself at given intervals. The generalization of this concept to sounds that are not strictly periodic is the autocorrelation function. Periodic signals will always have peaks at multiples of the period that mirror the peak at time zero. The analogs of such periodicity are peaks in the autocorrelation of nonperiodic signals. — Eric J. Heller, Why You Hear What You Hear- An…, 2033 (#expands, via linked claim)

Two distinct models have been proposed to explain the perception of pitch: the place model and the temporal model. These two codes likely work in concert to produce the perception of pitch. For pure tones, the temporal model is likely the strongest for lowfrequency sounds and the place model for high-frequency sounds. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1338 (#expands, via linked claim)

Categorization

• XREF: connects to: Hearing analyzes pitch through both place and timing mechanisms; Pitch can be encoded by scalar firing rate rather than tuned vector codes; Neural pitch coding produces a butte of equal-rate activity centered on the stimulus frequency (+9 more)

Related

• Pitch can be encoded by scalar firing rate rather than tuned vector codes (similarity 0.93)
• Neural signals encode auditory information through spike timing patterns (similarity 0.93)
• Neural pitch coding produces a butte of equal-rate activity centered on the stimulus frequency (similarity 0.92)
• Pitch perception is encoded by the timing of neural firing in the cochlea (similarity 0.91)
• The temporal code mainly handles pitch at low frequencies where pitch is strong (similarity 0.90)
• The ear switches from place to temporal pitch coding when harmonics stop being resolved (similarity 0.89)
• Pitch may be jointly coded by temporal patterns and their cochlear location (similarity 0.88)
• The auditory system performs pitch analysis as autocorrelation per sub-band, summed into a correlogram. (similarity 0.88)
• Hearing analyzes pitch through both place and timing mechanisms (similarity 0.87)
• Phase invariance of pitch might arise from some neurons always entracking (similarity 0.87)
• Pitch perception corresponds to peaks in the autocorrelation function (similarity 0.86)
• Pitch perception combines place-based and timing-based neural analysis of complex tones (similarity 0.85)
• Pitch perception is explained by two competing physiological models of the inner ear (similarity 0.85)
• Pitch is a human synthesis keyed to autocorrelation, not pure physics (similarity 0.85)
• No neural evidence supports autocorrelation models of pitch at the brainstem (similarity 0.85)

Broader Connections

• Pitch perception is encoded by the timing of neural firing in the cochlea #corroborates (0.95) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1655
• Pitch may be jointly coded by temporal patterns and their cochlear location #expands (0.85) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1338
• Low-frequency pitch judgments reflect temporal fine structure via neural phase locking #corroborates (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 1043
• Pitch perception corresponds to peaks in the autocorrelation function #expands (0.85) — Eric J. Heller, Why You Hear What You Hear- An…, 2033
• Autocorrelation models explain pitch and can separate concurrent vowel sounds differing in fundamental frequency #expands (0.80) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1658
• Neural signals encode auditory information through spike timing patterns #expands (0.75)