I have just finished my first surround mix and after supplying the 6 channels for a DCP creation I was asked to create ac3 files to use on a dvd. Nuendo 5.5 does not offer this as an export option. From research it looks like I need pretty expensive software for that, anyone have any price friendly or free options that could work, I would really hate to just supply a stereo mix because that is the only thing that the dvd creation software I think will allow without already encoded audio.

  • I hope I don't sound like a complete idiot but what's the difference with encoding AC-3 with something like MediaCoder than using a paid application, is it illegal or something? – Stephen Saldanha May 16 '12 at 9:08
  • I believe it has to do with algorithm and software licensing from Dolby patents, hence the notations about generating a Dolby print with a Dolby-licensed encoder. It could end up being a legal problem, if not a quality control problem. Likely comes back to why LtRt encoders aren't free (the only two I know of are Dolby Surround Tools and Neyrinck, both of which are Dolby-licensed tools and cost a bit of money). – Stavrosound May 16 '12 at 10:07
  • Just because a program wraps/encodes a file in AC3 (free) doesn't necessarily mean it adheres to the the strict compression standard, file data structure, and metadata schemes of Dolby's AC3 (licensed/paid) – Stavrosound May 16 '12 at 10:10

Compressor can output an ac3 (stereo or up to 7.1) for $50, which I think is absolutely worth it. Much cheaper than Dolby Media Encoder SE ($595).

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Yep, the Mac OSX Application "Compressor" is fantastic for ac3 encoding. Hoping you have a mac.

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