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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: J Phon. 2009 Jul;37(3):297–320. doi: 10.1016/j.wocn.2009.03.007

Table 3.

Characteristics of each interval in the non-speech stimuli.

  • [h]: Square wave band-pass filtered between 1000Hz and 3000Hz, that is, roughly the range of F2 and F3 in a vowel. Peak intensity at 0.1 of maximum.

  • [a]: Anharmonic complex (component frequencies separated by 0.101503 natural log units).

  • [t]: Silence.

  • [o]: Same as [a].

  • [d]: Square wave band-pass filtered between 50 Hz and 150 Hz. Peak intensity at 0.1 of maximum.

  • [e]: Same as [a].

  • [s]: Square wave band-pass filtered between 4000 Hz and 5000 Hz. Peak intensity at 0.1 of maximum. Last 50 ms ramped down to 0 intensity with a raised cosine window.