Position:Direct sound wave and the scale that reflex sound affect the definition of source of main body news directly, similar direct sound wave and the scale that reflex sound also can affect audio space. Generally speaking, in the environment that close or closes partly, the direct sound wave that is apart from close hair organism to form is more than reflection sound, and the object direct sound wave with further distance is less than reflection sound. If be inside broad space, for example outdoor, it is the scale problem between direct sound wave and environmental noise. Adjust these scale, can change audio distance to feel.
Sound wave is in deferent process, average loss should be more than high frequency signal low frequency signal, accordingly, if be in remote when listening, low frequency signal is opposite bigger, vice versa. In the meantime, person ear also has a characteristic to frequency signal: Ear of the person when condition of low sound level is more acute to intermediate frequency, corresponding to low frequency signal slow, and as sound level rise, the voice that person ear hears also is met richer and richer. Accordingly, in phonate object distance is opposite further when, the person hears audio loudness opposite inferior also, can decline right now bring down frequency and high frequency, create the subjective feeling with phonate further sound to suffer thereby.
When sound is apart from the creation of feeling, be opposite the first challenge of the recording director that has live recording of movie and TV, the picture that sound engineer wants to know cameraman at the same time is tectonic, a sense of handholding audio distance with the mentation better ability that understands an audience even at the same time.
Dimensional feeling: Ear pointing to a person is located to acoustical source the perception of dimensional character. The space feels we are likewise understandable feel for sound field, our located each specific environment has the sound field character with every special environment, if be in moor, channel, odeum, common housing, the audience can traverse audio sound field, namely dimensional move will differentiate roughly these environments. Reverberation time accident was by wrong understanding once upon a time is merely decide by dimensional size, and here we can know: Should grow what return the special design that can compare 1000 square possibly in the reverberation time in the cubby without reverberation chamber. Accordingly, audio space feeling is You Shengyuan located sound character of the environment decides.
Environmental feeling: Point to the sound environment with film go-between located content, also be formed by environmental acoustics. There are a lot of different environments in our life- - the quiet rural, Bacchic airport, battlefield that is full of murderous look, be full of aerospace of strange unreal colorific to wait a moment, different environment has their respective characteristic, to maintain the authenticity of film, we must create a true environmental acoustics, these continuous acoustics must continue in whole film, in order to maintain the sense of reality of whole film.
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