en 4-Biomedical Signal Processing Biomedical Signal Processing Research Paper Research Paper <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="line-height:107%"><span new="" roman="" style="font-family:" times="">This study explores the use of distortion product otoacoustic emission (DPOAE) as a hearing screening modality for newborns and adults with hearing impairment. The goal is to improve cochlear response by developing digital filter characteristics to make it consistent for specialists to make accurate diagnoses. To accomplish this, the proposed system consists of a DPOAE ER-10C as stimulation and cochlear response probe, a digital signal processor, an oscilloscope, PC, and audio cables. Real-time distortion product frequency components were extracted using a signal processor of TMS320C6713. To validate the system, a senior medical physicist at Baghdad Medical City in Iraq conducted a study with five hearing-normal volunteers ages 38 and 55 at the center for hearing and communication. The results showed an ability to extract distortion product components in real-time implementation, with the superiority of shape parameters greater than 0.5. In addition, the quantization of filter coefficients was compared for both floating-point arithmetic and fixed-point arithmetic. Noisy environment-based noise reduction techniques have to be investigated by considering the implementation of robust digital signal processing techniques. Finally, the proposed system would contribute to advancements in hearing screening and treatment for those with hearing impairment.&nbsp;</span></span></span></span></span></span> Distortion product otoacoastic emission, digital signal processor TMS320C6713, fixed point digital signal processing, Kaiser filter, real time biomedical signal processing 20 31 http://ijeee.iust.ac.ir/browse.php?a_code=A-10-4791-5&slc_lang=en&sid=1 Aws Alazawi Aws_basil@mtu.edu.iq 1800319475328460014071 1800319475328460014071 Yes Middle Technical University Huda Jameel huda_baban@mtu.edu.iq 1800319475328460014072 0000000342724691 No Middle Technical University Mohammed Mohsen mohammed.sh.c@mtu.edu.iq 1800319475328460014073 1800319475328460014073 No Middle Technical University