The relative strength of the tone and noise components in iterated rippled noise

Roy D. Patterson, Stephen Handel, William Yost, A. Jaysurya Datta

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

Rippled noise is constructed by delaying a random noise and adding it back to the original. Iterated rippled noise (IRN) is constructed by repeating the delay-and-add process. IRN produces a two-component perception, i.e., a buzzy tone with a pitch equal to the reciprocal of the delay and a background noise that sounds like the original random noise. The perceived tone/noise ratio increases with the number of iterations. The effective tone/noise ratio in IRN sounds with 1-16 iterations was measured in a discrimination matching experiment; each IRN was paired with a range of standard sounds, having varying proportions of a broadband noise and a complex lone, to find the point where their perceived tone/noise ratios are the same. The experiment shows that the tone/noise ratio of the matching standard increases 3.8 dB per doubling of the number of iterations in the IRN stimulus. Spectral models of auditory perception explain the pitch of IRN in terms of peaks in the region of the first five to eight harmonics of the reciprocal of the delay. However, the matching data are unaffected when the sound is high-pass filtered at the twelfth harmonic of the delay-above the region of resolved harmonics. We show that a wide range of time-domain auditory models can explain the discrimination matching data by applying autocorrelation, either to the IRN waveform, or to the neural activity patterns produced by the cochlea in response to IRN waves.

Original languageEnglish (US)
Pages (from-to)3286-3294
Number of pages9
JournalJournal of the Acoustical Society of America
Volume100
Issue number5
DOIs
StatePublished - Nov 1 1996
Externally publishedYes

Fingerprint

noise (sound)
iteration
random noise
harmonics
Sound
discrimination
auditory perception
Harmonics
Iteration
cochlea
acoustics
background noise
Experiment
Discrimination
stimuli
autocorrelation
proportion
waveforms
broadband
Cochlea

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

The relative strength of the tone and noise components in iterated rippled noise. / Patterson, Roy D.; Handel, Stephen; Yost, William; Datta, A. Jaysurya.

In: Journal of the Acoustical Society of America, Vol. 100, No. 5, 01.11.1996, p. 3286-3294.

Research output: Contribution to journalArticle

Patterson, Roy D. ; Handel, Stephen ; Yost, William ; Datta, A. Jaysurya. / The relative strength of the tone and noise components in iterated rippled noise. In: Journal of the Acoustical Society of America. 1996 ; Vol. 100, No. 5. pp. 3286-3294.
@article{12d50c9272c44dee84932787d156b13f,
title = "The relative strength of the tone and noise components in iterated rippled noise",
abstract = "Rippled noise is constructed by delaying a random noise and adding it back to the original. Iterated rippled noise (IRN) is constructed by repeating the delay-and-add process. IRN produces a two-component perception, i.e., a buzzy tone with a pitch equal to the reciprocal of the delay and a background noise that sounds like the original random noise. The perceived tone/noise ratio increases with the number of iterations. The effective tone/noise ratio in IRN sounds with 1-16 iterations was measured in a discrimination matching experiment; each IRN was paired with a range of standard sounds, having varying proportions of a broadband noise and a complex lone, to find the point where their perceived tone/noise ratios are the same. The experiment shows that the tone/noise ratio of the matching standard increases 3.8 dB per doubling of the number of iterations in the IRN stimulus. Spectral models of auditory perception explain the pitch of IRN in terms of peaks in the region of the first five to eight harmonics of the reciprocal of the delay. However, the matching data are unaffected when the sound is high-pass filtered at the twelfth harmonic of the delay-above the region of resolved harmonics. We show that a wide range of time-domain auditory models can explain the discrimination matching data by applying autocorrelation, either to the IRN waveform, or to the neural activity patterns produced by the cochlea in response to IRN waves.",
author = "Patterson, {Roy D.} and Stephen Handel and William Yost and Datta, {A. Jaysurya}",
year = "1996",
month = "11",
day = "1",
doi = "10.1121/1.417212",
language = "English (US)",
volume = "100",
pages = "3286--3294",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "5",

}

TY - JOUR

T1 - The relative strength of the tone and noise components in iterated rippled noise

AU - Patterson, Roy D.

AU - Handel, Stephen

AU - Yost, William

AU - Datta, A. Jaysurya

PY - 1996/11/1

Y1 - 1996/11/1

N2 - Rippled noise is constructed by delaying a random noise and adding it back to the original. Iterated rippled noise (IRN) is constructed by repeating the delay-and-add process. IRN produces a two-component perception, i.e., a buzzy tone with a pitch equal to the reciprocal of the delay and a background noise that sounds like the original random noise. The perceived tone/noise ratio increases with the number of iterations. The effective tone/noise ratio in IRN sounds with 1-16 iterations was measured in a discrimination matching experiment; each IRN was paired with a range of standard sounds, having varying proportions of a broadband noise and a complex lone, to find the point where their perceived tone/noise ratios are the same. The experiment shows that the tone/noise ratio of the matching standard increases 3.8 dB per doubling of the number of iterations in the IRN stimulus. Spectral models of auditory perception explain the pitch of IRN in terms of peaks in the region of the first five to eight harmonics of the reciprocal of the delay. However, the matching data are unaffected when the sound is high-pass filtered at the twelfth harmonic of the delay-above the region of resolved harmonics. We show that a wide range of time-domain auditory models can explain the discrimination matching data by applying autocorrelation, either to the IRN waveform, or to the neural activity patterns produced by the cochlea in response to IRN waves.

AB - Rippled noise is constructed by delaying a random noise and adding it back to the original. Iterated rippled noise (IRN) is constructed by repeating the delay-and-add process. IRN produces a two-component perception, i.e., a buzzy tone with a pitch equal to the reciprocal of the delay and a background noise that sounds like the original random noise. The perceived tone/noise ratio increases with the number of iterations. The effective tone/noise ratio in IRN sounds with 1-16 iterations was measured in a discrimination matching experiment; each IRN was paired with a range of standard sounds, having varying proportions of a broadband noise and a complex lone, to find the point where their perceived tone/noise ratios are the same. The experiment shows that the tone/noise ratio of the matching standard increases 3.8 dB per doubling of the number of iterations in the IRN stimulus. Spectral models of auditory perception explain the pitch of IRN in terms of peaks in the region of the first five to eight harmonics of the reciprocal of the delay. However, the matching data are unaffected when the sound is high-pass filtered at the twelfth harmonic of the delay-above the region of resolved harmonics. We show that a wide range of time-domain auditory models can explain the discrimination matching data by applying autocorrelation, either to the IRN waveform, or to the neural activity patterns produced by the cochlea in response to IRN waves.

UR - http://www.scopus.com/inward/record.url?scp=0029910499&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029910499&partnerID=8YFLogxK

U2 - 10.1121/1.417212

DO - 10.1121/1.417212

M3 - Article

VL - 100

SP - 3286

EP - 3294

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 5

ER -