Spectral modulation threshold is the smallest detectable spectral contrast in a ripple stimulus
Evidence
Stimuli were 500 ms long with 100 ms ramps, nonharmonic tone complexes with 202 equal amplitude pure-tone frequency components, spaced every 1/33.3 octave from 100 to 6400 Hz. The amplitudes of the pure tones were modulated by a sine wave with a 33 % modulation depth. A three-interval, two-alternative forced choice task was used, with a reference stimulus of 20 ripples per octave (RPO) presented at 65 dBA. The target stimulus initially had 0.5 RPO and the number of ripples was modified using a 1-up/1-down adaptive procedure with a step size of 0.2 RPO. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2095 (
#expands, via linked claim)
Categorization
- corroborated: 3 independent passages support this claim
- XREF: connects to: Spectral modulation threshold is the smallest detectable spectral contrast in a stimulus. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1823; Spectral ripple thresholds are measured with a forced-choice flat-versus-modulated comparison — Dijk, Pim van, Physiology, Psychoacoustics and…, 2095
Related
- Spectral ripple thresholds are measured with a forced-choice flat-versus-modulated comparison (similarity 0.95)
- Spectral modulation threshold is the smallest detectable spectral contrast in a stimulus. (similarity 0.91)
- Anticipation and habituation bias method-of-limits threshold estimates (similarity 0.84)
- Spectral ripple test measures spectral modulation detection thresholds in cochlear implant users (similarity 0.83)
- Spectral ripple tests can assess spectral resolution without loudness confounds. (similarity 0.82)
- Ripple-noise pitch strength grows linearly with log spectral modulation depth beyond 10 dB (similarity 0.81)
- Adaptive 3-down 1-up tracking with 2 dB steps estimates spectral ripple thresholds (similarity 0.81)
- Spectral modulation thresholds quantify the smallest detectable spectral contrast (similarity 0.81)
- Spectral ripple tasks can confound loudness and edge-frequency cues (similarity 0.79)
Broader Connections
- Spectral ripple thresholds are measured with a forced-choice flat-versus-modulated comparison
#expands(0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 2095