Filter 2: Frequency Shaper

Customizable design:

· Applies gain > 1 for hard-to-hear frequencies

· Modifies gain for other specified ranges

The frequency shaper is designed to correct for loss of hearing at certain frequencies. We completely designed this filter ourselves.

The filter applies a gain greater than one to the frequencies that the user has difficulty hearing. As one of its parameters, the filter takes in a vector of frequencies, determined by an audiologist, that define the user's hearing characteristics. For each range, the frequency shaper applies a certain gain based on the user's specific hearing loss. Thus, our frequency shaper iscompletely configurable to any user. We implemented our frequency shaper in MATLAB.

Filter 1: Noise Reduction

Filter 2: Frequency Shaper

Filter 3: Amplitude Shaper