Interaural intensity difference Limen

Rowland, Roy C.; Tobias, Jerry V.

doi:10.1037/e509242009-001

Cited by 5 publications

(6 citation statements)

References 0 publications

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“…The work of Domnitz and Colburn (1977) confirmed earlier findings (Rowland and Tobias, 1967;Elfner and Perrott, 1967;Hershkowitz and Durlach, 1969;Yost, 1974;Hafter and DeMaio, 1975;Hafter et al, 1977) that showed that sensitivity to interaural differences was usually diminished when the lateral images were located away from midline by introducing an interaural difference of time or level.…”

Section: Introductionsupporting

confidence: 87%

“…With this change in focus, much less attention has been given to the processes that underlie the discrimination of interaural differences of level and how they change with frequency. In general, findings show that the sensitivity of the binaural auditory system to IDLs remains relatively constant across a large range of frequency (Mills, 1960;Rowland and Tobias, 1967;Grantham, 1984), with thresholds found to be in the range of 1-2 dB.…”

Section: Introductionmentioning

confidence: 92%

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Discrimination of interaural differences of level as a function of frequency

Yost

Dye

1988

The Journal of the Acoustical Society of America

129

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Discrimination of interaural differences of level (IDLs) was measured for pure tones as a function of frequency and as a function of the interaural difference of phase or level of a standard. Varying the interaural difference of the standard was assumed to change the lateral position of its intracranial image. Threshold IDLs were approximately constant over a frequency range from 200-5000 Hz, except in a region near 1000 Hz where they were slightly elevated. Thresholds increased as the value of the standard interaural differences of phase or level increased, implying that interaural resolution declines as the lateral image moves away from midline. The results are generally consistent with the predictions of current models of lateralization, but additions to these models are required in order for them to account for the slight frequency dependence of threshold IDLs.

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Section: Introductionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 92%

Discrimination of interaural differences of level as a function of frequency

Yost

Dye

1988

The Journal of the Acoustical Society of America

129

View full text Add to dashboard Cite

show abstract

“…If the reference IID increases, IID thresholds increase also. For reference IIDs of 9 dB, the IID threshold is about 1.2 dB, and for a reference IID of 15 dB, the IID threshold amounts between 1.5 and 2 dB [56,57,58].…”

Section: Psychoacoustic Backgroundmentioning

confidence: 99%

Parametric Coding of Stereo Audio

Breebaart

Par

Kohlrausch

et al. 2005

EURASIP J. Adv. Signal Process.

102

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Parametric-stereo coding is a technique to efficiently code a stereo audio signal as a monaural signal plus a small amount of parametric overhead to describe the stereo image. The stereo properties are analyzed, encoded, and reinstated in a decoder according to spatial psychoacoustical principles. The monaural signal can be encoded using any (conventional) audio coder. Experiments show that the parameterized description of spatial properties enables a highly efficient, high-quality stereo audio representation.

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“…This observation suggested that the listeners possibly exploited the ILD as a cue for their judgments along the left-right axis. However, the amount of the observed ILD was about 2 dB or less, which might not be sufficiently large compared to the detection threshold (0.5-0.8 dB [12]). We expected little of the interaural time difference (ITD), which was another important cue for left-right judgment in the field of general spatial hearing.…”

Section: A Acoustic Measurementmentioning

confidence: 88%

On the human ability to auditorily perceive human speaker's facing angle

Kato

Takemoto

Nishimura

et al. 2010

2010 4th International Universal Communication Symposium

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This paper summarizes an empirical study exploring whether or not human listeners can tell the facing direction of a human speaker solely by the auditory sense, and if so, how accurately they are able to do it. The purpose is to find the sound information necessary for ultimately realistic and human-centered telecommunications. The study consists of two parts: listeners' performance and acoustic analysis. The first part describes the methodologies of assessing human perception and the results obtained. The second part provides the candidates of sound information that convey speaker's facing angles. Twelve blindfolded listeners were tested on their ability to sense the facing angle of a male who spoke a sentence in an anechoic chamber. The listeners were able to indicate the speaker's facing angles with a reasonably high confidence. The average response errors were 23.5 degrees for horizontal angles and 12.9 degrees for vertical angles. To estimate acoustic cues that the listeners exploited, the acoustic transfer characteristics from the speaker's mouth to the listener's ears were measured for all the facing angles tested. The results suggested that the overall level and spectral tilt were used for the listeners' judgment along the frontback axis, and the level difference between left and right ears was used for the judgment along the left-right axis.

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Interaural intensity difference Limen

Abstract: Sound-field presentation of an acoustic stimulus which is diotic for time, intensity, and spectrum ..

Cited by 5 publications

References 0 publications

Discrimination of interaural differences of level as a function of frequency

Discrimination of interaural differences of level as a function of frequency

Parametric Coding of Stereo Audio

On the human ability to auditorily perceive human speaker's facing angle

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