These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] media-libs/webrtc-audio-processing-0.3.1-r1::gentoo  USE="-static-libs" 680 KiB

Total: 1 package (1 new), Size of downloads: 680 KiB