RP313 - Using Tracking of Noise Tolerance to Measure the Efficacy of Split Processing

Abstract: Split processing separately processes the audio input from the front and back hemispheres to further improve the signal-to-noise ratio (SNR) of the audio input beyond that provided by adaptive directionality. In this study, we compared the noise acceptance as measured on the TNT with and without the following features – noise reduction, directionality, and split processing to that measured in the unaided mode. Compared to the unaided mode, NR did not improve TNT whereas directionality and split processing improved TNT by 4.7 dB and 7.6 dB over the unaided mode respectively.