Speech-in-Noise Training & Testing

Helps you learn how to pick out a voice in a noisy environment.

Speech-in-Noise Training
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The Speech-in-Noise exercise constitutes approximately 30% of the total adaptive training. Training is organized into topics (health issues, money matters, exercise, etc.) that are selected by the trainee at the beginning of the training session in order to reinforce the importance of utilizing contextual cues by keeping the general topic in mind when listening. This task consists of sentences presented in the presence of multi-talker babble. Initially, the signal-to-noise ratio (SNR) is +10 dB. The trainee repeats as much of the sentence as he or she comprehends, either aloud or silently. The subject then progresses to the next screen where the sentence is presented visually.

Hear an example

Examples are for demonstration purposes only. LACE adapts to your listening threshold so the exercises should never be too easy or too difficult.

The trainee is then asked to determine whether he or she understood every word in the sentence, and to confirm by selecting “yes” or “no.” The sentence is then presented again to the trainee in both the visual and auditory mode. If the “yes” button was selected, the next sentence is presented at the same intensity level, but the noise level is increased by 4 dB, thus yielding a +6 dB SNR. Alternately, if the trainee responded that he or she did not fully comprehend the sentence, the next presentation will be at a +14 dB SNR. The training continues in this manner for five presentations, after which the step size for altering the SNR is reduced to 2 dB. At the start of the next SB training session, the SNR is presented at two steps (4 dB SNR) above the average performance of the previous training session, and all step sizes thereafter are 2 dB.

QuickSIN™ Speech-in-Noise Test

Included in LACE for no additional fee is the QuickSIN which is comprised of sentences recorded in four-talker babble. It represents a realistic simulation of a social gathering, in which the listener may “tune out” the target talker and “tune in” one or more of the background talkers. Each of the twelve QuickSIN lists has six sentences, one sentence at each signal-to-noise ratio (SNR) of 25, 20, 15, 10, 5, and 0 dB. These SNRs encompass the range of normal to severely impaired performance in noise. Each sentence has five key words that are scored as correct/incorrect. A single QuickSIN list takes approximately one minute to administer and score. 

LACE Auditory Training

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