Professional Audio Equipment, Microphones, Wireless Microphones, Recording Equipment
Tuesday, November 30, 2010
The basic principle of divider
Current speakers are primarily dynamic speakers of the world, which in essence is an electro-acoustic energy conversion device that transfers sent signals converted to sound output. It is well known that the human ear can hear the sound frequency range are generally called audible 20Hz-20KHz, acoustic (audible sound) or audio (audio), single horn to cover such a wide range of frequency bands, and a good balance between high and low frequency extension of both ends, achieve low distortion and high transient, high-power load capacity is not possible (in the current technical condition of release is not the speakers to the future it may be possible). Single speaker is very difficult to override the audible sound (audible sound) on this point, the new Hai has a very vivid descriptions: "as the road police, if the pipe is too wide and would eventually and the tube period is much easier", the speakers also is the reason that the solution to this problem is most simple and effective way to replay the band. So there are a work in a different frequency range of speakers, subwoofer unit cell, baritone, bass, treble unit, ultra-treble unit and so on, this kind of "base" of the targeted design, causes the performance of each unit are relatively stable, in order to work in a State of low distortion. Since the majority of speakers now using multiple cell division band replay of design patterns, so you must have a device capable of full-band music signals as needed into different frequency band signal, thereby entered into the corresponding speaker session, this device is the divider: similar to a complex path scheduling, is it the sound signal "classified" arrangements in their respective jobs. Divider will sound signal "classified" arrangements in their respective job if the band signal with a "shunt" direct input to the high, mid, bass unit, the unit replay frequency signal outside the part of the "extra signal" on normal in-band signaling restore adverse effect (the term is referred to as "modulation distortion"), the sound will be messy haze, kept, and this is just a lighter, more serious consequence is the power of bass signal cuanru treble, Alto session, beyond the power of this unit is hosted, thereby directly damage the unit.
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