Convert Windows App to Mac App + Add Features

Hi guys, I am in need of a Mac Application to work similarly to my Windows Application. Basically what my windows application does is 1. Choose an audio file (wav,mp3,m4a, etc) 2. It will load the waveforms of that audio and display them. My application has a few settings to enhance the waveforms displayed: 1. Color of waveforms (Pen color) 2. Thickness of waveforms (Pen width) There are other settings and features in the application but they are not important because I don't need them in the new MAC application. However, there are some additional features which I need implemented: 1. Regardless of the length of the audio, the waveforms will be displayed horizontally and I can use a horizontal scrollbar to scroll. 2. I can export the waveforms into a vector (SVG) for further rendering in other software. I would need a talented, perfectionist, and english speaking freelancer for this job.