2021 Yes https://www.sciencedirect.com/science/article/abs/pii/S0021992421000654?via%3Dihub Wilson, Wayne Australia Experimental Epidemiology Study Students Elementary (K-5) Noise Sound field amplification (sfa) Autism spectrum disorder (ASD) Listening Attention Memory Phonological processing Educational achievement A randomized controlled trial in 10 Australian schools tested sound-field amplification in Year 3 classrooms. Teachers rated listening higher with SFA; phonological benefit seen in ASD students. Supports inclusive acoustic policy.