Movie/Multichannel audio / Re: What is the effect of converting multichannel movie Atmos/DTS to AAC?Last post by Chibisteven -
If it's regular Dolby Digital or DTS it's fine to convert it but keep in mind AC3 is already small and lossy to begin with and you could lose dialogue normalization and/or other DRC information if you use DRC on your receiver. Best left alone.
Dolby TrueHD might benefit from being converted to AAC if space is a concern but I just use regular Dolby Digital if the soundtrack is 5.1 but again I just leave it alone.
For DTS-HD Master Audio you can keep only the core DTS stream if you want if space is an issue but again I leave it alone otherwise.
I strongly recommend you leave it as is unless space is a very serious issue.