How to use the mixer _ Mixer use diagram
The mixing console, also known as the tuning console, is a multi-channel input signal for amplification, mixing, distribution, sound quality modification and sound effect processing. It is a broadcast and recorded program in modern radio broadcasting, stage amplification, audio program production and other systems. Important equipment. The mixer can be divided into analog mixers and digital mixers according to the signal output method.
Mixer Mixer has different aspects in terms of the number of input channels, the number of face function keys, and the output indication. In fact, to master the use of the mixer, it is necessary to examine it in general, and through practical operation and connection, natural practice makes perfect. The mixer is divided into three parts: the input part, the bus part, and the output part. The busbar section links the input section to the output section to form the entire mixer.
The microphone input is via the XLR socket and accepts balanced or unbalanced low level signals. It uses a professional moving coil, capacitive or ribbon low impedance microphone. If you use an unbalanced microphone, you need to use the microphone as short as possible. Line to avoid interference from radio noise.
2.LINE: high level input interfaceThe high level input is usually sent via the TRS 1/4" Stereo Phone Jack or TRS 1/4" Mono Phone Jack. Signals other than the microphone source can be input to the mixer via the high level. The input of the stereo Phone Jack is balanced. In the same way as XLR, but if you must use unbalanced equipment, you can use Mono Phone Jack, the wiring can not be too long (less than 4.5m).
Press this button to attenuate the input level by 20 dB. This button is generally used when the ambient noise is high and the device level noise is high or the level is too high. Use this button to attenuate all frequencies of the audio input signal to filter out the low-pitched noise or electrical noise. Sometimes the input level signal is too high. If the attenuation is not performed, the control range of the attenuator is greatly reduced, and it can only slide in a small area, making it difficult to operate the volume output control. This button should be pressed at this time to increase the effective control range of the attenuator.
When the Peak light is on, it warns the user that the signal in the input channel is too strong. When the Peak light is on, and if this is the case, the mixer will activate the self-protection function to cut off the source output. Therefore, the input volume should be adjusted at this time, otherwise the audio output of the mixer will be automatically cut off. The controls that can be used include: Line -20 DB, Reduce Gain, Pull Low Attenuator, and generally reduce Gain.
5.GAIN: Gain knobIt is used to adjust the level of the input signal. How much of the input signal is output is determined by the knob and the fader of the input unit. Obviously, the greater the clockwise angle of the knob and the higher the fader, the greater the increase in the output level of the input signal, or the louder the audio signal input to the input signal in the output. The gain range is from 20 decibels to 60 decibels. It is worth noting that too high a gain will overload the channel load, resulting in distortion of the sound; too low background noise, and may not be able to obtain enough signal levels to provide a mix output. Turn the gain small when using a high level input. The gain knob is used as the gateway for the sound input mixer. If the adjustment is appropriate, the processing circuit of the next stage of the mixer can receive a sufficient and “clean†signal.
6.HIGH, MIDDLE, LOW: three-stage equalizer knobHigh, Middle, and Low can enhance or attenuate the high frequency, intermediate frequency, and low frequency respectively, and the control range is plus or minus 15 decibels. It is especially useful when the IF control receives the voice, which can very accurately modify the voice of the performer. Bass: 20 Hz to 500 Hz When appropriate, the bass is relaxed and the sound is full and soft. When the sound is insufficient, the sound is thin, and when it is excessively lifted, the sound is boring, the brightness is lowered, and the nasal sound is enhanced.
Midrange: 500 Hz to 2 KHz The sound is clear and bright when appropriate. When it is not enough, the sound is awkward, and when it is over-extended, it will produce a phone-like sound.
Treble: 2 KHz to 8 KHz is the frequency that affects the layering of the sound. When the sound is insufficient, the penetrating power of the sound is lowered. When it is too strong, the recognition of the language syllable is masked, and the tooth sound is aggravated and the tone is hairy.
7.MONITOR: Director listening to the volume knobAdjust the volume of the channel in the listening line. This knob can be placed at 0 if you are not using an additional listening device that is connected to the mixer .
8.EFFECT: Output to the effect knob Adjust this knob to determine the level of the output to the effect. If you do not use an external effect, this knob can be placed at 0.
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