Delayed emission spectra concentrate energy in discrete frequency maxima
Evidence
The frequency spectrum of a stored delayed emission can be measured by analysing t.he periodically repeated time function of the emission without the evoking sound burst. Figure 3.21 shows such spectra for four sensation levels of t.he evoking impulse. The four spectra indicate very clearly that the spectral energy is not distributed continuously, but shows very distinct maxima in which most of tile energy of the emission is concentrated. This effect is almost independent of the sensation level of the evoking impulse. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 302
Categorization
Category: Factual Claims
- QUESTION: Worth chasing: what mechanism would produce discrete spectral maxima in delayed emissions that are level-independent?
Related
- Delayed evoked otoacoustic emissions show discrete spectral peaks rather than continuous energy (similarity 0.92)
- Delayed evoked emissions respond linearly to impulses below about 18 dB sensation level (similarity 0.80)
- Delayed otoacoustic emissions grow linearly then saturate 10-20 dB above threshold (similarity 0.79)
- Threshold in quiet has a fine structure of maxima and minima. (similarity 0.79)
- Spontaneous otoacoustic emission frequencies are stable to within a fraction of a percent (similarity 0.79)
- Delayed otoacoustic emissions arrive faster for higher stimulus frequencies (similarity 0.78)