Understanding low-pass-filtered Mandarin sentences: Effects of fundamental frequency contour and single-channel noise suppression | Zendy

Lei Wang | Zendy; Dingchang Zheng | Zendy; Fei Chen | Zendy

Open Access

Understanding low-pass-filtered Mandarin sentences: Effects of fundamental frequency contour and single-channel noise suppression

Author(s) -

Lei Wang,

Dingchang Zheng,

Fei Chen

Publication year - 2018

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.5025168

Subject(s) - mandarin chinese , flattening , intelligibility (philosophy) , noise (video) , channel (broadcasting) , computer science , speech recognition , acoustics , mathematics , artificial intelligence , physics , telecommunications , linguistics , philosophy , epistemology , astronomy , image (mathematics)

The present work assessed the effects of flattening the fundamental frequency (F0) contour and processing by single-channel noise suppression on the intelligibility of low-pass (LP)-filtered (LPF) sentences. The original F0 contour was replaced by an average flat F0 contour or treated by single-channel noise suppression, followed by application of LP filtering to Mandarin sentences. Processed stimuli were presented to normal-hearing listeners to recognize. Flattening the F0 contour significantly affected the understanding of LPF sentences. Noise suppression by existing single-channel algorithms did not improve the intelligibility of LPF sentences.

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