Doom9's Forum - View Single Post - Guide: Stereo to 5.1 upmix using DPLII (2nd Ed.)

OCedHrt · 21st January 2007, 12:28

I'm not sure if this is equivalent, but in the current ffdshow you can simply use the dolby decoder to do upmixing.

This seems to take care of everything including LFE.

So, in ffdshow, you would only need to have dolby decoder checked. I also use volume to do normalization, but that's not necessary (although from here you can see that indeed LFE is being generated).

Additionally, ac3 output is working. Just make sure you change the output back to 16bit when you're done otherwise ffdshow only decodes to spdif (hence no sound).

21st January 2007, 12:28	#50 \| Link
OCedHrt Registered User Join Date: Jul 2004 Posts: 58	I'm not sure if this is equivalent, but in the current ffdshow you can simply use the dolby decoder to do upmixing. This seems to take care of everything including LFE. So, in ffdshow, you would only need to have dolby decoder checked. I also use volume to do normalization, but that's not necessary (although from here you can see that indeed LFE is being generated). Additionally, ac3 output is working. Just make sure you change the output back to 16bit when you're done otherwise ffdshow only decodes to spdif (hence no sound).