Click anywhere on this page to activate the sound player, then hover your mouse courser over the rows of cells below to play a seawave sound texture which has been morphed to changes along different prinicipal component dimensions. You can select morphs which are plus or minus either one or two standard deviations distant from the original sound, along each of the feature types "Marginal distributions", "Cochlear correlations" or "Modulation Power".
The first principal component of the marginal features ranks sounds from "less sparse" to "more sparse (intermittent)".
The second principal component of marginal features ranks sounds from "more continuous" to "more bursty".
The first principal component of cochlear correlations ranks sounds from less to more correlated across all frequency bands. More correlated sounds tend to sound more "scratchy" as broadband transients introduce cross-frequency band correlations.
The second principal component of cochlear correlations ranks sounds from more correlated in the lower frequencies to more corralted in the upper frequencies. This is a rather subtle effect that is more difficult to hear.
The first principal component of modulation power ranks sounds from "more slowly modulated" to "more rapidly modulated".
The second principal component of modulation power ranks sounds from less to more modulation at intermediate modulation frequencies near around 40 Hz.
To download the corpus of sound texture files that our analyses were based on as a zip archive, click here. The archive contains 200 sound files and is 1.6 GB in size so downloading may take a little while.