The OnePlus 5 shows audio recording superiority over OnePlus 3 in a new video25
Heeding the feedback of OnePlus 3 and 3T users who wished for better audio capturing in noisy environments, the OnePlus guys are outfitting the OnePlus 5 with microphones of a higher grade. In fact, here's a clear example of the difference between audio recordings from the OnePlus 3 and the OnePlus 5:
And of course, the new microphone system is not going to be the sole improvement in the OnePlus 5. In terms of hardware, the new phone is also expected to sport a more powerful system chip, the Snapdragon 835, as well as 25% faster Dash charging, a dual-camera system, and maybe even 8GB of RAM.
By the way, keep in mind that the footage from the second half of the above video may not have been recorded with the OnePlus 5. The forum post below does not state clearly if that's the case.
source: OnePlus forum