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Spectral and temporal changes to speech produced in the presence of energetic and informational maskersa)
a)A preliminary report of this work appeared at Interspeech 2009 in Brighton, United Kingdom.
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10.1121/1.3478775
/content/asa/journal/jasa/128/4/10.1121/1.3478775
http://aip.metastore.ingenta.com/content/asa/journal/jasa/128/4/10.1121/1.3478775

Figures

Image of FIG. 1.
FIG. 1.

Acoustic parameters of speech produced as a function of background and task. Values shown are means over talkers and error bars, here and elsewhere, indicate 95% confidence intervals. Background conditions are quiet (Q), speech-modulated noise (SMN), competing speech (CS) and stationary speech-shaped noise (SSN).

Image of FIG. 2.
FIG. 2.

Mean individual talker F0 differences between communicative and non-communicative tasks for each background.

Image of FIG. 3.
FIG. 3.

Foreground-background overlap percentage as a function of task and background. Values shown are averages across the 8 talkers. The leftmost bar shows the degree of overlap for simulated talkers described in Sec. ???.

Image of FIG. 4.
FIG. 4.

(a) Speech rate and (b) mean pause duration for speech produced as a function of task and background.

Image of FIG. 5.
FIG. 5.

Example pause length (left) and contribution length (right) densities for a single talker in quiet (top), speech modulated noise (middle) and a competing talker background (bottom). The horizontal axis shows duration in seconds. Gamma density fits are also plotted with shape and rate values shown.

Image of FIG. 6.
FIG. 6.

(a) Between-category dispersion and (b) within-category dispersion for a subset of vowels produced in the 4 types of background (quiet and 3 noisy backgrounds) with or without a communication factor. Values shown are averages across the 8 talkers.

Tables

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TABLE I.

Noise and task conditions in each recording session.

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/content/asa/journal/jasa/128/4/10.1121/1.3478775
2010-10-18
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spectral and temporal changes to speech produced in the presence of energetic and informational maskersa)
http://aip.metastore.ingenta.com/content/asa/journal/jasa/128/4/10.1121/1.3478775
10.1121/1.3478775
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