Gaussian-shaped tone bursts minimize spectral splatter in gated tones

Evidence

Reducing the duration of a tone burst produces a widening of its spectrum. This effect limits the shortest useable duration to a value at which the spectral width corresponds to that of the critical band. A quick rise time that occurs with a narrow spectrum is produced by Gaussian rise and fall. Therefore Gaussian-shaped tone bursts are usually used to measure temporal effects. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 494

The panel “Gaussian-shaped tone burst” shows the time function and the spectrum of a type of gated tones, which is preferred in psychoacoustics because of the relatively steep slope of its temporal envelope, and, at the same time, its relatively narrow spectral distribution. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 90

Categorization

• DEFINE: Explains why Gaussian envelopes are the standard stimulus — the time-bandwidth tradeoff drives the methodological choice.
• corroborated: 2 independent passages support this claim — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 494; Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 90