The figure on the right shows the Open Development Platform test setup. It includes one listener (artificial head (3)), wearing a pair of single-microphone binaural microphones and two sources of speech sound (2), one of them located in front and the other at the back of the listener. The smartphone with the external microphone (4) is located in front of the listener. The Speedgoat target machine (6) programmed with the proposed audio processing algorithm using a laptop (1), receives the preamplified hearing aid signals (5) as well as the signal of the external microphone of the smartphone (4) and processes them. The processed signals are played live via a soundcard (7) or can be stored on the laptop computer (1).
*D. Yee, H. Kamkar-Parsi, H. Puder and R. Martin, “A speech enhancement system using binaural hearing aids and an external microphone,” 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Shanghai, 2016, pp. 246-250.