Sound field control of sound reinforcement is the foundation of sound reinforcement system design.Ba

　　Sound reinforcement belongs to the category of applied acoustics, and neither indoor or outdoor sound reinforcement can be separated from the acoustic environment (or sound field) where sound reinforcement is used. The final effect of sound reinforcement is the reflection of the comprehensive effect of construction sound and electro-acoustic, so the basic problem of sound reinforcement system design is the acoustic problem, which is to complete the analysis and design calculation of the sound reinforcement sound field on the basis of construction sound.

　　If a sound reinforcement sound field is evaluated from the acoustic characteristics indicators of the sound reinforcement system successful cases, there are mainly the maximum sound pressure level, transmission frequency characteristics, sound field unevenness and sound transmission gain. If you evaluate a sound reinforcement sound field from the sense of hearing, it mainly includes the clarity of speech, the clarity of music, and the sound quality effect of "many attributes" of sound playback.

　　Whether it is indoor or outdoor sound reinforcement, there is more or less sound interference in the sound field of the sound reinforcement, which may be unavoidable. The existence of sound interference in the sound field of sound reinforcement will affect the clarity of speech and music in sound reinforcement, and detrimental to the sound quality of sound reinforcement playback. Modern sound reinforcement design is no longer "satisfied" with sound reinforcement sound pressure level and sound field inhomogeneity in the general sense, but attaches great importance to the sound interference problem of sound reinforcement sound field, and strives to minimize the sound interference in the design. This is modern The focus of sound reinforcement design.

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