Sound source localization identification accuracy: Bandwidth dependencies

William Yost, Xuan Zhong

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    Sound source localization accuracy using a sound source identification task was measured in the front, right quarter of the azimuth plane as rms (root-mean-square) error (degrees) for stimulus conditions in which the bandwidth (1/20 to 2 octaves wide) and center frequency (250, 2000, 4000 Hz) of 200-ms noise bursts were varied. Tones of different frequencies (250, 2000, 4000 Hz) were also used. As stimulus bandwidth increases, there is an increase in sound source localization identification accuracy (i.e., rms error decreases). Wideband stimuli (>1 octave wide) produce best sound source localization accuracy (∼ 6°-7° rms error), and localization accuracy for these wideband noise stimuli does not depend on center frequency. For narrow bandwidths (<1 octave) and tonal stimuli, accuracy does depend on center frequency such that highest accuracy is obtained for low-frequency stimuli (centered on 250 Hz), worse accuracy for mid-frequency stimuli (centered on 2000 Hz), and intermediate accuracy for high-frequency stimuli (centered on 4000 Hz).

    Original languageEnglish (US)
    Pages (from-to)2737-2746
    Number of pages10
    JournalJournal of the Acoustical Society of America
    Volume136
    Issue number5
    DOIs
    StatePublished - Nov 1 2014

    Fingerprint

    stimuli
    bandwidth
    acoustics
    root-mean-square errors
    octaves
    broadband
    Localization
    Stimulus
    Sound
    azimuth
    bursts
    low frequencies
    Octave

    ASJC Scopus subject areas

    • Acoustics and Ultrasonics
    • Arts and Humanities (miscellaneous)

    Cite this

    Sound source localization identification accuracy : Bandwidth dependencies. / Yost, William; Zhong, Xuan.

    In: Journal of the Acoustical Society of America, Vol. 136, No. 5, 01.11.2014, p. 2737-2746.

    Research output: Contribution to journalArticle

    @article{5f92463f83844cc18b90d57d527341dc,
    title = "Sound source localization identification accuracy: Bandwidth dependencies",
    abstract = "Sound source localization accuracy using a sound source identification task was measured in the front, right quarter of the azimuth plane as rms (root-mean-square) error (degrees) for stimulus conditions in which the bandwidth (1/20 to 2 octaves wide) and center frequency (250, 2000, 4000 Hz) of 200-ms noise bursts were varied. Tones of different frequencies (250, 2000, 4000 Hz) were also used. As stimulus bandwidth increases, there is an increase in sound source localization identification accuracy (i.e., rms error decreases). Wideband stimuli (>1 octave wide) produce best sound source localization accuracy (∼ 6°-7° rms error), and localization accuracy for these wideband noise stimuli does not depend on center frequency. For narrow bandwidths (<1 octave) and tonal stimuli, accuracy does depend on center frequency such that highest accuracy is obtained for low-frequency stimuli (centered on 250 Hz), worse accuracy for mid-frequency stimuli (centered on 2000 Hz), and intermediate accuracy for high-frequency stimuli (centered on 4000 Hz).",
    author = "William Yost and Xuan Zhong",
    year = "2014",
    month = "11",
    day = "1",
    doi = "10.1121/1.4898045",
    language = "English (US)",
    volume = "136",
    pages = "2737--2746",
    journal = "Journal of the Acoustical Society of America",
    issn = "0001-4966",
    publisher = "Acoustical Society of America",
    number = "5",

    }

    TY - JOUR

    T1 - Sound source localization identification accuracy

    T2 - Bandwidth dependencies

    AU - Yost, William

    AU - Zhong, Xuan

    PY - 2014/11/1

    Y1 - 2014/11/1

    N2 - Sound source localization accuracy using a sound source identification task was measured in the front, right quarter of the azimuth plane as rms (root-mean-square) error (degrees) for stimulus conditions in which the bandwidth (1/20 to 2 octaves wide) and center frequency (250, 2000, 4000 Hz) of 200-ms noise bursts were varied. Tones of different frequencies (250, 2000, 4000 Hz) were also used. As stimulus bandwidth increases, there is an increase in sound source localization identification accuracy (i.e., rms error decreases). Wideband stimuli (>1 octave wide) produce best sound source localization accuracy (∼ 6°-7° rms error), and localization accuracy for these wideband noise stimuli does not depend on center frequency. For narrow bandwidths (<1 octave) and tonal stimuli, accuracy does depend on center frequency such that highest accuracy is obtained for low-frequency stimuli (centered on 250 Hz), worse accuracy for mid-frequency stimuli (centered on 2000 Hz), and intermediate accuracy for high-frequency stimuli (centered on 4000 Hz).

    AB - Sound source localization accuracy using a sound source identification task was measured in the front, right quarter of the azimuth plane as rms (root-mean-square) error (degrees) for stimulus conditions in which the bandwidth (1/20 to 2 octaves wide) and center frequency (250, 2000, 4000 Hz) of 200-ms noise bursts were varied. Tones of different frequencies (250, 2000, 4000 Hz) were also used. As stimulus bandwidth increases, there is an increase in sound source localization identification accuracy (i.e., rms error decreases). Wideband stimuli (>1 octave wide) produce best sound source localization accuracy (∼ 6°-7° rms error), and localization accuracy for these wideband noise stimuli does not depend on center frequency. For narrow bandwidths (<1 octave) and tonal stimuli, accuracy does depend on center frequency such that highest accuracy is obtained for low-frequency stimuli (centered on 250 Hz), worse accuracy for mid-frequency stimuli (centered on 2000 Hz), and intermediate accuracy for high-frequency stimuli (centered on 4000 Hz).

    UR - http://www.scopus.com/inward/record.url?scp=84908565950&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84908565950&partnerID=8YFLogxK

    U2 - 10.1121/1.4898045

    DO - 10.1121/1.4898045

    M3 - Article

    AN - SCOPUS:84908565950

    VL - 136

    SP - 2737

    EP - 2746

    JO - Journal of the Acoustical Society of America

    JF - Journal of the Acoustical Society of America

    SN - 0001-4966

    IS - 5

    ER -