Speech perception of noise with binary gains.
For a given mixture of speech and noise, an ideal binary time-frequency mask is constructed by comparing speech energy and noise energy within local time-frequency units. It is observed that listeners achieve nearly perfect speech recognition from gated noise with binary gains prescribed by the ideal binary mask. Only 16 filter channels and a frame rate of 100 Hz are sufficient for high intelligibility. The results show that, despite a dramatic reduction of speech information, a pattern of binary gains provides an adequate basis for speech perception.
Wang
DeLiang
D
Department of Computer Science & Engineering, and Center for Cognitive Science, The Ohio State University, Columbus, Ohio 43210, USA. dwang@cse.ohio-state.edu
Kjems
Ulrik
U
Pedersen
Michael S
MS
Boldt
Jesper B
JB
Lunner
Thomas
T
D000161:Acoustic Stimulation; D000328:Adult; D001302:Audiometry, Speech; D001309:Auditory Threshold; D006801:Humans; D008875:Middle Aged; D009622:Noise; D046709:Pattern Recognition, Physiological; D010470:Perceptual Masking; D021641:Recognition, Psychology; D013018:Sound Spectrography; D013065:Speech Intelligibility; D013067:Speech Perception; D013997:Time Factors