Abstract
A harmonic tone complex typically evokes a sensation of pitch at its fundamental
frequency, even without acoustic energy at this frequency. This phenomenon, which
has been shown to be of central neural origin, can be accounted for by a template
model in which components of an internally generated harmonic template are optimally
matched to transformations of stimulus frequencies. When two or more harmonic
tone complexes are simultaneously presented, such as simultaneous playing of musical
instruments or vowels from simultaneous speakers, the listener' s task is much
more complex. He must first parse the per-ceived spectral components into the correct
groups before matching templates to each group. This study presents results of
an experimental investigation of constraints on perception of simultaneous complextone
pitches imposed by frequency interference within and across aural channels.
Our results so far indicate that the only significant constraint is adequate spectral
resolution within each ear.
Original language | English |
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Pages (from-to) | 20-25 |
Number of pages | 6 |
Journal | IPO Annual Progress Report |
Volume | 18 |
Publication status | Published - 1983 |