i have nothing against the purists or enthusiasts, but from a professional working in audio industry point of view, I have to question is it really important to have 1 to 25Hz signals in the audio stream?

normally 25Hz is felt at the skin rather than heard at the ear, but that's just me.

I'm worried about distortion of the signals with typical reproduction systems...I guess if you really want sub 25Hz sounds you can just shake the sofa instead.

i knew from the moment i posted there will be flaming, so lets keep the discussion channels open...

true, audio industry is quite different from 'AV' industry, and therefore I speak from personal point of view.

But, the equipment may not differ so much and putting into consideration, even mid range equipment cannot properly output sub 25Hz signals (personally it tickles me fancy when people consider it as 'da room shakers' or 'window movers', flame flame)

You could end up 70% of the end-users producing harmonics rather than fundamentals, and get complaints instead in the community forums...so its like a lose-lose situation,in which then I will choose the lesser of the evils.

When users complain like this we usually count how many who don't complaint and assume them satisfied...but hey I don't work for 20th cent. fox

I guess when involved the purists, they treat 'lossless' as include the noise, but it has to stop at some point because audio engineers still need to treat, design, work on the recordings they get from the studios. At what point do we say lossless when we factor in the work that needs to be done there?

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Added on May 4, 2010, 6:13 pmThe director (James cameron or Peter Jackson in this case) doesn't really make the call what kind of sounds or noises that is included, its up to the audio engineering and sound director. That guy / guys could well have decided the sub 25Hz sounds are unintended or isn't part of their design, and hence took it out.

Don't go crazy when you see a graph of before and after / with or without, just listen to the thing and judge

I'm really sorry if the subs of the elites have no work to do....lets inject 10-25Hz +10dB whenever you see something close and see if it improves your viewing experience.

This post has been edited by lee82gx: May 4 2010, 06:13 PM

given the choice, i too would go for unfiltered sound track, but knowing that most people who don't actually the equipment to do so may end up spoiling their experience by unintended intent (if there is such a phrase) I'd still willingly do it for the user...its like people complaining about power limiter in sports cars etc...many makers still implement them in their models (for the good of the uneducated)

maybe they can add some bonus tracks with super LFE lol..

Like I said previously don't freak when seeing coloured charts.

I use this all the time to scare my bosses to make some decision I need. Some critical people will ask what is the significance of the chart.

WHen you see some signals running even at 1Hz, trully, it is not an acoustic signal intentionally added / generated by the sound engineer. This is more likely some synthesized low frequency signal centering slightly higher and not been taken care in further processing.

Not to mentioned it is inaudible by ear and by actual microphones.

I guess there is no satisfying bass heads