【 Weak current College 】 mixer control panel on the role of the various interfaces

When the initial contact with a mixer, can easily be it panel presenters, a large number of knob and push rod swindle. First of all let's take a look at the left panel. In fact, left on a per the significance of the push rod and knob. So you only need to focus on understanding a channel operation method can overall control. Fewer branches of mixer with 4-channel and 8-channel input control, the way most 96 road even more. This mixer has a 8-channel input control, we only take one to explain the role of each section.
1.MIC: microphone input interface
Microphone input via XLR female seat, acceptable equilibrium or non-balanced low level signal, using a professional moving coil, capacitive or Ribbon-low impedance microphone, if you are using a non-balanced microphone needs to make use of the shorter the better microphone cable to avoid radio interference noise.
2.LINE: high level input interface
High level input is typically through TRS1/4 stereo PhoneJack or TRS1/4 "into the microphone audio sources MonoPhoneJack outside signal can be transmitted through high level input to the mixing machine, stereo input is balanced PhoneJack, identical to the XLR, but if you must use the non-equilibrium equipment, wiring available MonoPhoneJack cannot be too long (4.5m within).
3.LINE-20DB: attenuation 20 DB keys
Press this key to input level attenuator 20 DB. General environmental noise is large, device-level relatively noisy or level too high when using the key. Use it on all of the audio input signal frequency attenuation, in order to achieve the volume smaller noise or electrical noise filter out. Sometimes appear excessive input level signal, such as no attenuation, the attenuator control range is significantly reduced, only a very small area within gliding, causing the volume output control very difficult operation. You should press the key to increasing the attenuator range of effective control.
4.PEAK: peak LEDs
Peak lights, warning users input channel of the signal is too strong. Find Peak lights, and let this situation continue, the mixer starts self-protection, cut off the audio source output. Therefore, you should adjust the input volume size, otherwise, the sound mixer audio output will be automatically cut off. You can use control including: Line-20DB, decrease the Gain, low attenuator, generally to reduce the Gain.
5.GAIN: gain knob
It is used to adjust the size of the input signal level. Input signals to the output level to the knobs and faders of the input cells together. Obviously, the knob clockwise angle increases, the higher the faders, input signal output level, the greater the upgrade, or the input audio signal at the output of loudness. Gain range is 20 DB to 60 DB.
It is worth noting that gain too high will make the channel load overload, resulting in the sound is distorted; too low then the background noise significantly, may not be sufficient to provide mix output signal levels. Use high level input to gain go small. Gain knob is as sound input mixer, adjusting the fit, to guarantee the sound mixer next level of processing circuit can receive a full and "clean" signal.
6.HIGH, MIDDLE, LOW: three Equalizer knobs
High, Middle, Low-frequency, respectively on the low-frequency, enhance or attenuation, control the range of plus or minus 15 DB. If control is especially useful when your voice, you can very accurately decorated performers of sound.
Bass: 20Hz ~ 500Hz appropriate, bass, voice full relaxation. Insufficient sound thin, excessive lifting the sound made when dull, luminance drops, nasal sound enhancement.
Baritone: 500Hz ~ 2KHz appropriate sound thorough bright. Insufficient sound obscure, excessive lifting will produce similar phone voice.
Treble: 2KHz ~ 8KHz is the frequency of the sound level. Insufficient sound penetrating power drops, too strong when the masking language syllable recognition so that teeth tone aggravation, nervous tone.
Director sounds7.MONITOR: volume knob
Adjust the path in the listen on line volume size. If you do not use additional access to listen to the Director of a mixer device, this knob can be placed in 0.
8.EFFECT: output to effects knobs
Adjust the knob determines the output to effects level size. If you do not use external effects, then this knob can be placed in 0.
9.PANPOT: sound like a knob
It is used to adjust the channel signal on the left and right channels of a stereo position. Adjustment range left channel 5-right channel 5, if you do not need to create special effects, usually at 0.
10.PFL: attenuator before listening key
When attenuator before listening key is pressed, the monitor output sent out only the road signals, use this key to effectively identify sources of noise. When there are multiple input of PFL is pressed, the listening distance
Out will be sent out the pathway of the mix.
11.FADER: Attenuator (volume faders)
Determines the channel signal is sent to the bus output volume size. Volume faders is actually a attenuator for on the channel output signal attenuation. When the bottom-most faders (or volume knob located on the left-most), signal attenuation is infinite. At this point, the channel does not have signal output. Adjustment range-∞ ~ + 6 DB, generally suitable to 0, more than 0 will cause the sound to produce a certain degree of distortion. If you must raise the level of the signal, the general use of the appropriate increased Gain, without the attenuator lifting more than 0.
Because music input for continuous, and voice input into breaks and therefore have the operation. In the musical input rail operations, general use"Fade in" and "fade out" effect. The operation is to slowly sliding attenuator, then gradually speed up operations, avoid uniform sliding or instant large operations, which will make the audience feel uncomfortable. In the voice input channels, generally use "one step". That is, when the human voice in needwill probably look to the faders suitable location, then listen and level meter displays a little adjustment. Without the need for the human voice, to get to the bottom-most faders to avoid unnecessary sound is input into it.
Next, we look at mixer right side of the control panel. Before the left side of the Panel is used to adjust the input signal, and the right side of the main responsible for the regulation of the output signal.
1.MONITOR: monitor output interface
Provide external listening device interfaces, used to connect external listening device.
2.EFFECTSEND: sound mixer output to effects interface
The input signal is sent to an external amplifier.
3.AUXINSTEREO: auxiliary stereo input interface
Connect an additional stereo input device.
4.EFFECTRETURN: effects return mixer interface
Will go through an external effect device handling return signal access.
5.7.MASTEROUTPUTRIGHT: total output right channel
6.8.MASTEROUTPUTLEFT: output the left channel
Provides two interfaces for left and right channels total output. Output signal to go through the various adjustment after the final signal.
9.POWERON: mixing console switch
When ON one side is pressed, the mixer will power on, POWER side is power off.
10.HEADPHONE: monitoring headphones output interface
Connection monitor headphones. When any one channel PFL is pressed, the headphones signal and output signal. When a channel PFL key is pressed, the output is for all
PFL key channel signal mixer (including through the effects of sound)
11.AUXIN: auxiliary stereo input knob
Adjustable auxiliary stereo input level.
12.PFLON: PFL led
When a channel PFL keys are pressed, this light is lit.
13.EFF.SEND: output to effects knobs
Adjust output to the external effects of signal's level.
14.HPLEVEL: headphones volume knob
Adjust the output volume of the headphones to listen.
15.DELAY: delay effect knob
Adjust the input signal to the intensityof the delay effect processing.
16.18.HIGH, LOW: second paragraph Equalizer knobs
Balanced output for listening.
17.LEVELMETER: level meter
Three color level meter to monitor all input, group and mix signal meter to peak type display. Displays the range of-20 DB to + 6 DB. There are two LED light show, the individually with R-CH L-CH
Represents a mix of left and right channel output level size, if you press the PFL key appears as is pressed the output level of the channel. General should peak at 0, unsustainable appear red.
When the mixer power is connected, the red light ON Office will be lit.
19.REPEAT: echo effect knob
Adjust the input signal to the intensity of the reverb effect processing.
20.EFF.MON: effects to listen knob
Adjust the audio source through effects processing, output to the monitor size.
21.PANPOT: sound like a knob
22.23.PFL: attenuator before listening key
24.MONITOR: sniffing out attenuator
25.EFF.RET: effects return attenuator
26.GRAPHICEQUALIZER: graphic equalizer
On total output audio source signal is compared to the delicate balance adjustment. Frequency is divided into 6325