Adding real-time noise suppression capability to the cochlear implant PDA research platform.
This paper presents the real-time implementation of an environment-adaptive noise suppression algorithm on an FDA-approved PDA platform for cochlear implant studies. This added capability involves identifying the background noise environment in real-time and adapting a data-driven noise suppression approach to that noise environment on-the-fly. Various software optimization steps are taken in order to achieve a real-time throughput on the PDA platform involving both the speech decomposition and the adaptive noise suppression components. Real-time timing results and a quantitative measure of noise suppression are presented.
Department of Electrical Engineering, University of Texas at Dallas, Richardson, TX 75080, USA.
Taher
T
Mirzahasanloo
Vanishree
V
Gopalakrishna
Nasser
N
Kehtarnavaz
Philipos
P
Loizou
D003054:Cochlear Implants; D003199:Computer Systems; D034201:Computers, Handheld; D006801:Humans; D059629:Signal-To-Noise Ratio; D012984:Software; D013018:Sound Spectrography / Q000295:instrumentation* / Q000379:methods*; D013068:Speech Production Measurement / Q000295:instrumentation* / Q000379:methods*