Representing the intelligibility advantage of ideal binary masking with the most energetic channels

Chen, Fei

2016-12

10.1121/1.4971206

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA   影响因子和分区

0001-4966

1520-8524

This study investigates how the intelligibility advantage of ideal binary mask (IBM) processing in synthesizing speech is affected by the use of a small number of the most energetic channels. In experiment 1, IBM-processed Mandarin speech that had been corrupted by speech spectrum-shaped noise or two-talker babble was synthesized by using as few as four of the most energetic target-dominated channels at each frame. This approach provided intelligibility comparable to that of speech synthesized with all of the target-dominated channels. Experiments 2, 3, and 4 examined how the intelligibility advantage of IBM processing from experiment 1 was affected by the local SNR threshold, low-frequency region (LFR) cut-off frequency, and vowel-based segmentation, respectively. Experiments 2 and 3 showed that a threshold of 0 dB for local SNR and a cutoff of 3000 Hz for LFR were optimal choices for improving the intelligibility of IBM processing based on the most energetic channels. Experiment 4 found that the intelligibility advantage of IBM processing with the most energetic channels was preserved at the segmental level of vowel-only IBM-processed speech. Taken together, the results suggest that compared to IBM-processed speech synthesized with all of the target-dominated channels, Mandarin speech synthesized by selecting a small number of the most energetic target-dominated channels can achieve similar levels of intelligibility. (C) 2016 Acoustical Society of America.

SCI ; EI

英语

第一 ; 通讯

Basic Research Foundation of Shenzhen[JCYJ20160429191402782]

Acoustics ; Audiology & Speech-Language Pathology

Acoustics ; Audiology & Speech-Language Pathology

WOS:000390347900024

ACOUSTICAL SOC AMER AMER INST PHYSICS

20165003123658

Linguistics ; Signal to noise ratio

Information Theory and Signal Processing:716.1 ; Speech:751.5

PHYSICS

Web of Science

Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China

Chen, Fei. Representing the intelligibility advantage of ideal binary masking with the most energetic channels[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2016,140(6):4161-4169.

Chen, Fei.(2016).Representing the intelligibility advantage of ideal binary masking with the most energetic channels.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,140(6),4161-4169.

Chen, Fei."Representing the intelligibility advantage of ideal binary masking with the most energetic channels".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 140.6(2016):4161-4169.