title: Harmonic Frequency Lowering: Effects on the Perception of Music Detail and Sound Quality.
abstract: A novel algorithm for frequency lowering in music was developed and experimentally tested in hearing-impaired listeners. Harmonic frequency lowering (HFL) combines frequency transposition and frequency compression to preserve the harmonic content of music stimuli. Listeners were asked to make judgments regarding detail and sound quality in music stimuli. Stimuli were presented under different signal processing conditions: original, low-pass filtered, HFL, and nonlinear frequency compressed. Results showed that participants reported perceiving the most detail in the HFL condition. In addition, there was no difference in sound quality across conditions.
authors.affiliation: ETH Zürich, Zürich, Switzerland.
authors.forename: Martin
authors.initials: M
authors.lastname: Kirchberger
authors.affiliation: Ryerson University, Toronto, Ontario, Canada russo@ryerson.ca.
authors.forename: Frank A
authors.initials: FA
authors.lastname: Russo
mesh_terms: D000161:Acoustic Stimulation; D000162:Acoustics; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D001299:Audiometry; D005260:Female; D006310:Hearing Aids; D006316:Hearing Loss, High-Frequency / Q000175:diagnosis / Q000523:psychology / Q000534:rehabilitation*; D006801:Humans; D007600:Judgment; D008297:Male; D008875:Middle Aged; D009146:Music; D019986:Persons with Hearing Disabilities / Q000523:psychology / Q000534:rehabilitation*; D010898:Pitch Perception; D012815:Signal Processing, Computer-Assisted; D013018:Sound Spectrography
keywords: frequency compression; frequency lowering; frequency transposition; harmonic; hearing loss; music perception
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