I discovered your website only a few days ago (this is my first post on the forum). Congratulations for your incredible work ! This looks like the best Chinese learning resource I have found so far, and I expect to make progress at a fast pace with this website.
In addition to being a Chinese learner, I also happen to be a bit geeky. Although I cannot promise anything, I would be very glad to support you by giving help on the audio player issue. If you could give me more details via email, I would be able to tell you whether I can be helpful or not (what your precise needs are, how you would like to integrate the player into the app, what the API looks like, etc).