Sound is better than last week--used the non-waterproof gopro housings, but the sound is still not "there" yet. Going to add external mics next time. This is a short video to show the moderate progress in sound quality. Also ran a GoPro 10 this week. The GoPro 10 has amazing video and real decent sound, but my computer wasn't powerful enough to process the raw data...had to order a new computer! So this is GoPro Hero 3 and 3+ footage/audio. Set your expectations accordingly, and you won't be disappointed!