The acoustic sensitivity of Autism Spectrum Disorder (ASD) individuals highly impacts their intelligibility in noisy urban environments. In this Letter, the disturbance sensing level is examined with perceptual listening tests that demonstrate the impact of their append High Internal Noise (HIN) profile on intelligibility. This particular sensing level is then proposed as additional aid to ASD diagnosis. In this Letter, a novel intelligibility enhancement scheme is also introduced for ASD particular circumstances. For this proposal, harmonic features estimated from speech signal frames are considered as center frequencies of auditory filterbanks. A gain factor is further applied to the output of the filtered samples. The experimental results demonstrate that the proposal improved the acoustic intelligibility of ASD and Neurotypicals (NT) people considering four acoustic noises at different signal-to-noise ratios.

翻译：自闭症谱系障碍（ASD）个体的声学敏感性对其在嘈杂城市环境中的语音可懂度具有显著影响。本文通过感知听辨实验研究了干扰感知水平，结果表明其附加的高内部噪声（HIN）特征对可懂度的影响。该特定感知水平被进一步提议作为ASD诊断的辅助手段。本文还针对ASD的特殊情境提出了一种新颖的可懂度增强方案。该方案将语音信号帧中估计的谐波特征作为听觉滤波器组的中心频率，并对滤波样本的输出进一步施加增益因子。实验结果表明，在四种不同信噪比的声学噪声条件下，该方案有效提升了ASD人群与神经典型（NT）人群的声学可懂度。