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Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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Sensitivity to tonality across the pitch range.

Frank A Russo1, Lola L Cuddy, Alexander Galembo

  • 1Department of Psychology, Ryerson University, 350 Victoria Street, Toronto, ON M5B 2K3, Canada. russo@ryerson.ca

Perception
|July 13, 2007
PubMed
Summary

Sensitivity to musical tonality decreases at very low and high pitches. This study found reduced perception of tonal fit in extreme registers, especially in the lowest octaves due to inharmonicity.

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Area of Science:

  • Psychoacoustics
  • Music Perception
  • Auditory Neuroscience

Background:

  • The Western tonal hierarchy describes expected relationships between musical tones.
  • Sensitivity to tonality is crucial for music cognition and auditory processing.
  • Pitch range and acoustic properties can influence auditory perception.

Purpose of the Study:

  • To investigate how sensitivity to musical tonality varies across different pitch registers.
  • To examine the impact of extreme low and high pitches on tonal perception.
  • To explore the role of inharmonicity and pitch salience in tonal judgments.

Main Methods:

  • Participants rated the goodness of fit of chromatic probe tones to a key-defining context (do-mi-do-sol).
  • The study compared probe-tone profiles across low, mid, and high pitch registers.
  • A Western tonal hierarchy served as a benchmark for comparison.

Main Results:

  • Significantly reduced sensitivity to tonality was observed at both low and high pitch registers.
  • Sensitivity was particularly impaired in the lowest octaves, correlating with high inharmonicity levels.
  • Probe-tone profiles deviated notably from the standardized Western tonal hierarchy in extreme registers.

Conclusions:

  • Sensitivity to tonality is not uniform across the pitch spectrum.
  • Extreme pitch registers, especially the lowest, significantly diminish tonal perception.
  • Pitch salience and suprathreshold inharmonicity are proposed as key factors influencing tonal sensitivity.