I.E., something coming from behind you sounds different than something coming from directly to the side because of the shape of the outer ear. As a guess.Īll of this ignores the fairly complex nature of the Head Related Transfer Function (HRTF) and the effect of the shape of the human ear on the incoming sound with respect to polar coordinates. If we apply the same thinking as a "good" stereo recording, where the mics are approximately where the ears of a listener would be, then we would need 5 mics in an array about as big as a human head, aimed at the angles that are recommended for 5.1 playback. I'm wondering how you would derive 5 channels if you were not using 5 mics (or more). How are these recordings made? What I mean is, how many mics and how are they placed. Quote from: blgentry on September 28, 2019, 07:14:41 am Does Atmos really apply to music at all? Or maybe this is just matter of spending the correct amount of money to have equipment installed and set up correctly by pros with good instruments to measure response? Maybe if I heard a $30,000 5.1 music setup I would be impressed. Perhaps my information is old and outdated. Perhaps there are a lot of good 5.1 music systems in people's houses and in demo rooms at stereo shops around the country. Does this really produce a sonic illusion that's any good? Or is it just throwing even more sound around the room that was not present with the recording was made? So now we step it up to Atmos, which is yet another synthetic surround format, but this time with "object oriented" channels. I've never heard a 5.1 music setup that produced involving interesting music. The reverb and other environmental sounds are diffuse. You can't precisely pick out locations of anything. Synthetic surround, on the other hand, is a weak illusion. Stereo is relatively simple and the illusion of panned left to right audio is strong and fairly convincing. But 5.1 and 7.1 are far more complex than stereo. It is again, mono tracks that are panned somewhere between the 5.1 (or 7.1) speakers in the system. Multi-channel music (5.1, etc) is totally synthetic as far as I can tell. Most music we listen to today is like this. So the stereo part is "fake" because it's not an acoustic stereo recording. Many times 2 channel audio is "synthetic stereo" in that it's mixed from a bunch of mono sources that are panned from left to right. What I mean is this: Recorded music is generally 2 channel.
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