I often just use Google dictionary which spells the word phonetically or just plays the word to me. However, I like your idea that you can embed the sound key

I often just use Google dictionary which spells the word phonetically or just plays the word to me. However, I like your idea that you can embed the sound key into something else, and have sounds which are more like audio semiotics. (audiootics?) They layout could be more compact, specifically on the browse-sounds page. Why not just put the player to the right of the word on the same row. OR hide the player all together and just have a speaker button. A future idea might be to create a clever algorithm to highlight the syllables as they heard, or the sound being played like a progress bar over the word. Good luck.