For sound effect you can attach a Bluetooth speaker and enjoy Dolby surround effect with JBL. It is not a movie to enjoy it is a game to entertain.
Sound effects does not matter to me. I play on my tablet and the biggest problem that I have faced is navigating within a website. Gambling websites have worst navigation. You have to move from one page to another, unlike a desktop where all the pages can be in seen in one place.
Some gamblers play because of the winning money and not on the quality of other features. Yes, it can really increase the excitement but it doesn't affect the result of the game in gambling. For example, you played dice, you have a good sound effects in desktop but did it increase your winning percentage? I think not. So better gambling in mobile device, less hassle and easy to play because you can monitor it, you can play anywhere just check if there's a wi-fi or signal in your location. Mobile devices are very handy and easy to carry so that you can gamble anytime and anywhere.