Studies of bandpass-filtered speech

G.S. Stickney and P.F. Assmann

1. Intelligibility of bandpass-filtered speech

(Poster presented at the 134th Meeting of the Acoustical Society of America, San Diego, December 3, 1997.)

2. Masking of bandpass-filtered speech by a single competing voice

(Poster for the 21st MidWinter Meeting of the Assoc. for Research in Otolaryngology, St. Petersburg, Feb. 15, 1998.)

Poster 1

Intelligibility of bandpass-filtered speech
Introduction
Aims of the Present Study
Hypotheses
Speech Stimuli
Bandpass Filters
Methods
Contribution of Semantic Predictability
Contribution of Sentence Context
Comparison of Predictability and Context
Spectrogram of broadband sentence
Spectrogram of bandpass-filtered sentence
Why is narrowband speech intelligible?
1. Partial formant information
2. Amplitude envelope cues
3. Fundamental frequency
Summary of Findings
Conclusions
References

Poster 2

Masking of filtered speech by a single competing voice
Introduction
Stimulus Materials
Spectrograms of filtered and broadband sentence
Experiment 1
Experiment 1 Results
Discussion
SRT Methods
SRT Procedure
Filter Transfer Functions
SRTs in Quiet
Masked Thresholds
Effects of Context and Masking
Local Signal-to-Noise Ratio Advantage
Temporal Glimpsing
Spectrograms of masked filtered and masked broadband sentences
Intelligibility of Filtered Speech in Quiet
Filtering and Speech Maskers
References





Email:
stickney@utdallas.edu assmann@utdallas.edu

Home Page: http://www.utdallas.edu/~assmann

References:
1. Stickney, G.S. and Assmann, P.F. (1997).
Intelligibility of bandpass-filtered speech.
J. Acoust. Soc. Am. 102: 3134.

2. Stickney, G.S. and Assmann, P.F. (1997).
Masking of filtered speech by a single competing voice.
Abstracts of the 21st Midwinter Research Meeting of the Association for Research in Otolaryngology: p.43.

Updated 2/20/98