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Environmental feeling and dimensional feeling are contacted somewhat but it is two completely different ideas. Above all, both is the environmental character in behaving picture atmosphere, however environmental feeling is the environment with movie located picture and the space that nods with picture seat is different, environmental sound is a kind of natural attribute, dimensional feeling is property of real a kind of physics. The picture may be very dormant, may be inky even, let a person do not feel dimensional sense, can explain the district that the object is in however right now with environmental sound- - rural, battlefield, or in the home.
Athletic feeling: Source pointing to sound feels the change of the position of phasic and harmonic source that go up in the audience, because the change of the size of tonal and symphonious quantity of phonic source is caused,this is, same our in actual life can experience: Any objects, example grows like a hooter cry car from you before flit, you can feel fluted to sound volume can produce change, tone also can produce change, if object movement is rapidder, such change is more apparent, this kind of change we are called " Doppler effect " . This is be compressed inside proper time by sound wave or expand cause. When the object exceeds an audience to move, sound wave is squashed, mix in the wave crest inside unit time so trough with respect to grow in quantity, sound wave shakes frequency to increase, because this hears audio tone,be to be added gradually tall; Same, when what the object flits beside us that rises momently, sound wave receives spread instantly, inside unit time the amount of wave crest and trough decreased, sound wave shakes frequency is drop off, because this hears audio tone,be to be reduced gradually.
Feeling of same sound motion still has other expressional way: If be in,the Doppler effect is not apparent when (the object moves relatively when rate is full) , what can adopt the actor's language is different will distinguish the picture is to lie campaign is quiet still in, we know, the speech dialect that the person talks in athletic environment is completely different. If be camera lens,move likewise, the change that can adopt environmental tone will behave motion: You can use the measurement of the type change of environmental sound and volume, for example camera is to be on a car, bacchic environmental sound is when passing downtown area, and once sail,be in town, bacchic sound is met decrescent, at the same time natural sound grow in quantity.
Trend sense: The person's ear can differentiate the source is in a sound why to be planted azimuth, of the auditive character because of the person and eye stereo into resemble a principle very much the same, the person has two ear, apart probably 20 centimeters, because source of this one news phonates sure the time that reachs ear is different, produce certain phasic difference, intensity difference and time difference thereby- - this also picks up the 3 gist element that makes stereo.
If be stereo pickup, pickup of much perhaps track, audio is phasic also be worth to take seriously, if camera is rotating, the position of each phonic sources also should produce opposite change.
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