A spectral contrast illusion

  title={A spectral contrast illusion},
  author={Diana Deutsch and Frank R. Moore},
A new illusion is described, produced by presenting two repeating sequences of Shepard tones, one to each ear. Each tone consisted of several sinusoidal components separated by octaves, and the tones were generated under various fixed spectral amplitude envelopes. The pitches were as in the scale illusion [D. Deutsch, J. Acoust. Soc. Am. 57, 1156–1160 (1975)], omitting those standing in octave relation. Thus B‐E‐G‐G‐E‐B was presented to one ear, while D‐A‐F‐F‐A‐D was presented to the other ear… CONTINUE READING