Impulsiveness is estimated from level statistics rather than directly measured

Evidence

There is no simple psychoacoustic measure for the impulsiveness of sound. In noise measurements there are some measures used, where the levels of measured noise are characterized as long-term mean levels. For example, the sound pressure level can be measured so that it exceeds the average 10% of the time. When the measured level is compared to the equivalent level of the noise, an estimate of impulsiveness is obtained. It has also been proposed that onsets which define impulsiveness can be identified by finding the regions where the positive slope of the instantaneous sound pressure level exceeds 10 dB/s (Pedersen, 2001). — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1234

Categorization

• QUESTION: The 10 dB/s onset-slope criterion suggests a concrete threshold worth probing for applied transient detectors.