Longer pure-tone durations produce narrower spectral peaks with less splatter

Evidence

According to our previous analysis of spectral splatter, the 2-second tone has a spectral peak bandwidth of 1 Hz, whereas the spectral peak bandwidth of the 200-ms tone is 10 Hz. For both of these durations, the majority of stimulus energy is contained within a fairly narrow bandwidth around the signal frequency. Thus, ASHA’s recommendations for the durations of pure tones yield very little spectral splatter. No matter the audiometric frequency tested (e.g., 250 Hz or 500 Hz), these durations will yield pure tones that have no frequencies in common with other frequencies tested in the audiogram. We can then treat each frequency tested in the audiogram as being independent from the other frequencies from an acoustic standpoint. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 193

Categorization

• DEFINE: Ties the spectral splatter concept from the previous section to clinical audiogram design.”