#DTS SOUND SHOULD I REMOVE IT MOVIE#
#DTS SOUND SHOULD I REMOVE IT PC#

If the dialog normalisation level is wrong for some reason then the decoder will adjust the audio by the wrong amount, but the dynamic range compression works under the assumption the average dialog level is at -31db, so an incorrect normalisation level can cause the dynamic range compression to not work, or to compress the audio too much. The decoder will play the audio (all channels) 11db louder. If you remove the -20db dialog normalisation, the decoder doesn't attenuate the audio so the average dialog level stays as it really is, -20db. As -31db is supposed to be the average dialog level for all AC3 and you have AC3 audio with a dialog level of -20db, the 11db reduction in the previous example gives you dialog at -31db. the decoder reduces the level by 31db, less 20db, to give you a 11db reduction. Without a dialog normalisation level the decoder leaves the volume alone. 31db is the standard for the 'average dialog level' in AC3 audio. If you're converting the AC3 to something else then it probably doesn't matter. Basically if you want to use the dynamic range compression to quiet down the load bits so you can turn the dialog up, removing the dialog normalisation level is probably a bad idea. Sorry if I'm explaining what you already know, but for the record here's a brief explanation as to how the dialog normalisation works and it's effect on using AC3's dynamic range compression. You don't really notice it working and if you're watching video at night when others are trying to sleep it's much better than constantly having to turn the volume up and down yourself. Some people hate that sort of normalisation but I don't mind it. Normally it'd then just stay at that level which means it's just turned the volume up, but the regain volume function makes it continually try to keep turning the volume up until it reaches that set level again, so in the quiet parts (dialog) it keeps slowly turning the volume up until it hits the maximum level or another loud bit comes along. If a louder bit comes along it drops the level a bit. It normalises the volume 'on the fly' slowly amplifying it until it's peak level reaches a set maximum. It's not ideal (compression is a better method) but it's effective. I tend to use the ffdshow decoder's volume normalisation/regain volume function as it works on all audio. I prefer MeGUI over Handbrake, but I only mention that because it doesn't remove the dialog normalisation.

#DTS SOUND SHOULD I REMOVE IT PC#

If you're using a PC though and something like ffdshow to decode the audio then you could use it's output matrix to output 6 channels, boost the centre channel (or cut the rest) and then let your sound card mix it all back to stereo. If like me, you use stereo speakers because you find surround sound to be a gimmick which just reminds you the video isn't, then it's of course hard to adjust the centre speaker level.

#DTS SOUND SHOULD I REMOVE IT MOVIE#

The purpose of the dialog normalisation is to ensure the average dialog level in the audio of one movie is the about the same as the average dialog level in another, supposedly to help you avoid having to reach for the volume control between movies. If you find the dialog can be too quiet compared with the loud bits it'll still be the same with the value present or removed. The dialog normalisation level has nothing to do with normalising between the dialog and the rest of the audio as such, it's a value which is used to adjust the entire audio.

Dts sound should i remove it