Wednesday, December 15, 2010
【 Weak current College 】 General digital processor usage---Power By 【 China power house network 】
General digital processor, the internal structure of universal is partial and output part, which belongs to the functionality of the audio processing part as follows: Enter part of the General will normally include, input gain control (INPUT GAIN), input equalization (several segments parameters balanced) adjustment (INPUT EQ), input delay adjustment (INPUT DELAY), input polarity (that is to say of phase) conversion (inputpolarity), etc. While the output section is generally signal input distribution routing (ROUNT), high-pass filter (HPF), low-pass filter (LPF), Equalizer (EQ OUTPUT), polar (polarity), gain (GAIN), limiter starting level (LIMIT) that several common features. The following describes the General functional digital processor part characteristics: input gain: this must we all understand that control processor input level. The scope of the General can adjust at around 12 DB. Input equalization: General digital processor most use 4-eight full-parametric equalization, internal adjustable parameter has three, namely the frequency, bandwidth, or Q values, gain. The first and third parameters adjustment we generally understand that more confused is the bandwidth (or Q value), this I do not want to say, just tell everyone a basic concept: bandwidth, expressed using the OCT, OCT = 0.35, regulation range, adjust the effect and 31 balanced, OCT = 0.7, adjust the scope and effect and 15 balanced almost, OCT = 1, regulating range effects and 7 almost balanced. OCT larger values you're adjusting range and wider. And Q value that can be understood as the reciprocal of the OCT, OCT = 0.35 corresponds approximately q value is Q = 3, we can own conversion. In the regulation, if you are not very clear, and the bandwidth value 0.3 around (or Q = 3), and then select the frequency, so that you can use the 31 balance transfer method and feeling to adjust gain. There are also some digital processors such as DBX, general equilibrium can be balanced in parameters (parameter EQ) and graphic equalizer (EQ graphics) between the conversion, use type, you have the habit of individual operations. Input delay: this feature is to allow this processor input signal into it with some delay, generally within this processor and it controls the speaker as a secondary when overall delay adjustment. Input polarity conversion: you can let the whole processor polarity and phase transition between the positive and negative, save your changes. These are the input section describes the following about the output section. Signal input distribution routing (ROUNT): this is the role of output channels to choose which input channel over the signal, you can choose A (1) input, B (2) input or mixed input (A + B or mix mono), if you select A, then the channel's signal from the input A, does not accept input signal B, if you select A + B, then B, regardless of whether or not A Alternatively road which has a signal, the signal of the channel will have to come in. High-pass filter (HPF): this is used to adjust the output signal of frequency limits, such as adjusting the crossover point under sound, internal General is composed by three parameters, a frequency that is used to select the desired frequency threshold value, the other is the filter form, generally are 3, L-R, BESSAL, butworth, if you don't understand, you can select L-R, the third parameter is a filter slope, there are 6, 12, 18, 24, 48dB/OCT, too deep, I do not say, this slope for you to choose the higher the value, get more clean. Low pass filter (LPF): is used to adjust the output signal of frequency caps, such as a control on the subwoofer's internal adjustable crossover points, and HPF. HPF and LPF combination is band-pass filter, such as an external 3 frequency speaker, frequency is 500/3000 Hz, bass channel select 500 of LPF, baritone channel of HPF selected 500, LPF selected 3000, treble channel of HPF selected 3000, filter form selected L-R, crossover slope selected 24, generally right. In addition, some processors is the filter form and crossover slope together as an option. Output balanced balanced General and enter the same game, only General output balanced just parametric equalization, but no graphic equalizer options. The output polarity adjustment and enter the section, is used to convert the output signal polarity, some processors in output and phase angle (PHASE) of the regulation, this is a bit deeper, I won't say any more. Output limiter: generally has three parameters adjustable, is the starting level, start time and the recovery time. Start the level of adjustment according to the power amplifier and speakers, General under normal conditions, control let power amplifier not out of the red light, the start time and the recovery time according to the frequency to select, low frequency with slow-start fast recovery, high-frequency with fast start slow recovery, if centered. Processor in general there are several options, one is similar to the DBX, features option keys located on the Panel, by different capabilities, access to various settings menu, and then select use key about the need to adjust the parameters, then use the data parameter adjustment wheel. There is a similar XTA, pressing the individual channels of editing keys, enter the channel editing interface, and then through some function keys to select the required adjustment functions and parameters.
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