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Modules

BASIC module

OPENSET module

PHONE module

SRT module

MCI module

TEST module

 

 

 

 

Sound Express™: SRT Module

 

SRT module is an advanced module for "Sound Express", which is targeted at improving speech perception in the presence of various background noise. Combined with adaptive procedure with speech contrast training protocols. This module provides necessary training for good CI performers or even non-native listeners to improve speech communication in different kinds of background noise. Two advanced training protocols are used, including phoneme-in-noise protocol and keyword-in-sentence protocols. The background noise includes six-talker speech babble, speech-shaped steady noise, and white noise. All procedures use closed-set with 4-alternative choices.

 

Group 1: Adaptive Medial Vowel Recognition in Noise Training

This training group is similar to vowel recognition training group in the default basic module except that the current training is performed in the presence of background noise. The signal-to-noise ratio varies according to the response from the subject. If the subject responds correctly, the signal-to-noise ratio is reduced by 2 dB. In the other words, the signal-to-noise ratio is increased by 2 dB. Each session includes 25 trials and there are four choices in each trial. During each trial, each choice represents one monosyllabic words (initial consonant+meidal vowel+final consonant). The initial consonant and final consonant are the same for all four choices. The medial vowel is different for the four choices. Here is one typical example of four alternative choices: "bat", "but", "bit", "bet". This training group will allow the listener to concentrate mainly on the middle vowel sound of each word in the presence of background noise.

 

Group 2: Adaptive Initial Consonant Recognition in Noise Training

This training group is similar to consonant recognition training group in the default basic module except that the current training is performed in the presence of background noise. The signal-to-noise ratio varies according to the response from the subject. If the subject responds correctly, the signal-to-noise ratio is reduced by 2 dB. In the other words, the signal-to-noise ratio is increased by 2 dB. Each session includes 25 trials and there are four choices in each trial. During each trial, each choice represents one monosyllabic words (initial consonant+meidal vowel+final consonant). The medial vowel and final consonant are the same for all four choices. The initial consonant is different for the four choices. Here is one typical example of four alternative choices: "cat", "pat", "fat", "rat". This training group will allow the listener to concentrate mainly on the initial consonant sound of each word in the presence of background noise.

 

Group 3: Adaptive Medial Consonant Recognition in Noise Training

This training group is similar to consonant recognition training group in the default basic module except that the current training is performed in the presence of background noise. The signal-to-noise ratio varies according to the response from the subject. If the subject responds correctly, the signal-to-noise ratio is reduced by 2 dB. In the other words, the signal-to-noise ratio is increased by 2 dB. Each session includes 25 trials and there are four choices in each trial. During each trial, each choice represents one monosyllabic words (initial vowel +meidal consonant+final vowel). The initla vowel and final vowels are the same for all four choices. The medial consonant is different for the four choices. Here is one typical example of four alternative choices: "ubu", "uru", "ufu", "udu". This training group will allow the listener to concentrate mainly on the medial consonant sound of each word in the presence of background noise.

 

Group 4: Adaptive Final Consonant Recognition in Noise Training

This training group is similar to consonant recognition training group in the default basic module except that the current training is performed in the presence of background noise. The signal-to-noise ratio varies according to the response from the subject. If the subject responds correctly, the signal-to-noise ratio is reduced by 2 dB. In the other words, the signal-to-noise ratio is increased by 2 dB. Each session includes 25 trials and there are four choices in each trial. During each trial, each choice represents one monosyllabic words (initial consonant+meidal vowel+final consonant). The inital consonant and medial vowel are the same for all four choices. The final consonant is different for the four choices. Here is one typical example of four alternative choices: "bat", "ban", "bag", "bad". This training group will allow the listener to concentrate mainly on the final consonant sound of each word in the presence of background noise.

 

Group 5: Adaptive Numebr Recognition in Noise Training

This training group is similar to number recognition training group in the default basic module except that the current training is performed in the presence of background noise. The signal-to-noise ratio varies according to the response from the subject. If the subject responds correctly, the signal-to-noise ratio is reduced by 2 dB. In the other words, the signal-to-noise ratio is increased by 2 dB. Each session includes 25 trials and there are four choices in each trial.

 

Group 6: Adaptive Everyday Sentence Recognition in Noise Training

This training group is similar to sentence recognition training group in the default basic module except that the current training is performed in the presence of background noise. The signal-to-noise ratio varies according to the response from the subject. If the subject responds correctly, the signal-to-noise ratio is reduced by 2 dB. In the other words, the signal-to-noise ratio is increased by 2 dB. Each session includes 25 trials and there are four choices in each trial.