One of the best ways to sync external audio with your video is a program we've featured many times on planet5D called Pluraleyes (which of course as you know is now owned by RedGiant).
They've added a new feature called Smart Start – which makes so much sense I don't know why they didn't do it before! Kinda one of those moments that once you see it you say “of course!”
Introducing a new PluralEyes feature called SMART START
From Red Giant:
Whether adding a small set of media files or importing multiple folders of multicam files, the new Smart Start feature in PluralEyes 3.3 intelligently organizes your media, so you can start synchronizing sooner. Add entire folders of media, while preserving folder structures and names, with easy drag and drop organization of media.
There are also several other new features as well:
A new revised look and feel, streamlined and simplified to bring focus where it’s needed.
Additional camera support: Canon C300, XF300 and other Canon XF cameras, with full support for spanned clips.
FREE for PluralEyes 3.0/3.1/3.2 or Shooter Suite owners, or get it now for only $199.
[ Via Red Giant ]
(cover photo credit: snap from the video)