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- W2741674162 abstract "In case of sensorineural impairment, the reduced frequency resolution in the peripheral auditory system due to spread of masking of a frequency component by adjacent frequency components degrades speech perception. Speech processing by a bank of critical band filters and adding signals from alternate bands for presenting o dd numbered critical bands to o ne e ar and even numbered ones to the other is likely to reduce the effect of spread of masking along the c ochlear partition, and therefore it may help in improving speech intelligibility. This s cheme has been implemented for real-time processing for use as a binaural hearing aid. The implementation consists of two TI/TMS320C50 DSP processor based bo ards, each h aving 14 -bit ADC and DAC. Speech signal after amplification and signal conditioning is connected as input t o b oth the boards. One board uses filter coefficients corresponding to the even numbered critical bands, and the other board u ses filter coefficients for the odd nu mbered critical bands. For filtering, the FIR filter coefficients for the two channels are loaded to the corresponding DSP boards, using serial port from a PC. Twelve English consonants were used in carrying out l istening tests in vowelconsonant-vowel (VCV) syllables presented to a normal hearing subject with simulated sensorineural hearing loss. The test results s how an increase of 8 % in the recognition score under adverse listening condition. Information transmission analysis of confusion matrices, for various features, show maximum improvement for the place feature." @default.
- W2741674162 created "2017-08-08" @default.
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- W2741674162 date "1998-01-01" @default.
- W2741674162 modified "2023-09-27" @default.
- W2741674162 title "REAL TIME SPEECH PROCESSING FOR DICHOTIC PRESENTATION FOR BINAURAL HEARING AIDS" @default.
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