Audio mixing console connection

A connection to a reference to a mixer, audio system, we first think of a mixer, mixer, there will be many describe method, the most relevant is the mixer analogy into a sound system of the heart, the heart and blood circulation, directly affects the performance of the entire system. Image, sound mixer is like one big water treatment pool, we have a variety of audio sources as input signals like flowing water into the large pool, and then in the pool for flowed into the water to carry a reasonable deal, then from various different channels stream out, the whole process is so simple. Thus the connection to the sound mixer are nothing more than to: input and output two most. (A), the mixer input section of line connection: sound mixer of the input signal is generally divided into low impedance microphone signal input and high-impedance line signal input. In fact, we can make low resistance and high distinction as a water pressure or flow rate. For example: the high-impedance input level, much like the water pressure is very large, the water flow is urgent, entered directly into the mixer this sink is right, do not add any link in the middle to adjust water pressure and water flow; but low resistance input level to low, just like the water pressure is very low, the water flows slowly entered directly into the mixer this sink is not suitable, we need to put in a big pond on a pump, low resistance and low water pressure to increase, let the water run faster! so mixer of low resistance input channel line is built in a dedicated circuit amplifier, the low level zoom to the appropriate level. In this way the characteristics of the water used to describe low resistance and high impedance signals should be well understood. Only distinguish between high and low resistance before you can select the correct wire to connect the whole mixer input jack Basic can be divided into 3 types: 1, TRS: high resistance input part is usually used for TRS stereo connector 6.35cm balanced input, try not to use 6.35 TS tone (voice) connector for non-balanced input, and now we use most audio sources play equipment such as CD, VCD, DVD, MD, MP3, etc, as well as most of the musical instruments of the output signal is usually high impedance signals. 2 XLR: whereas low resistance is usually used for Lennon connector XLR card balance now most of the input, wired microphone, usually with low resistance socket connection with the mixer. 3, the RCA: If you have a mixer with a TAPE recording input, it is typically used to connect Lotus connectors RCA. Mixer signal input section need to be aware of the problem: it has introduced the mixer input signal generally can be divided into low resistance and high-impedance input, but how to accurately define a way to signal is low resistance or high resistance requires flexibility. For example, in accordance with standard electric piano, electric bass, electric guitar, etc. belongs to high impedance signals, to use 6.35 plug can only be entered into the mixer, but in some places, from the stage to the connection between the mixer is too long, the line of resistance, together with the lighting system interference, so that the signal line background noise is very large, even if you do not enter any audio source signals, in a mixer on this line the input channel gain up when there are a lot of background noise, as described above: this line is a river that now this river sediment has too much, then this line in the noise a lot or not convertible, and the line side of the instrument's sound volume is way up and no longer increases, the river can only give you the deep water, what should we do? if you are using high-impedance input signal is equal to the water in the river water is not without increased, sound quality can be changed, of course, there is no way to change; if you use the card you unplugged from low resistance Jack input signal, the river of shallow water will be after amplification of low resistivity amplifier so that the depth of water, water quality, sound quality is fine. That seems not quite true, everyone can try. I now do a lot of work, the band are basically using card Lennon Jack input from low resistance, although not standardized, but is in fact reduce the band noise wunaizhiju. So we had to be flexible, in practice, finding the best way to work. (2), the mixer output section of the line connection: now professional mixer output section has many pockets, and a division of labour, not like enter partial though Jack number but it is relatively simple. Therefore connecting output signals caution. Usually the main part of the output of a mixer or the total volume of output, the group volume output, AUX output, etc., generally a mixer output parts according to function in General can be divided into six sections: 1, grouping output: If we set the bass speaker through 1-2 classification to separate control volume, then the only sound mixer 1-2 output for marshalling the Jack output audio signal, the output of marshalling output TRS stereo Jack used mostly for balanced output, of course, some of you "by Jack with the card. 2. main out: L-R main channel usually output XLR card balance, some customers were small TRS stereo mixer is also useful in place of the socket. 3, AUX output: AUX output mixer in the most commonly used is output to the vocal effects, followed by the band or singer provides monitoring signals, of course, open to other purposes, such as: audio, used as a secondary speaker signals, etc. TRS stereo AUX usually uses the Jack output signal. 4. Direct comparison directly output section: professional audio mixing console each input channel, there is a "Direct direct output" Jack, the socket can be made available to the other device used to record, monitor, and so on, each channel mixer often use TRS stereo Jack output signal. For example, a television broadcast live performances, the scene is also needed to live, if a 20-channel audio source signals, so we can put the 20-channel audio source signal input to the TV's audio mixing console, and then use Direct in the TV sound mixer directly output jack on the 20-channel audio source signal and then enter to site performance in the mixer. Of course now in order to secure the basis of the 20-channel audio source signals via signal amplification allocator adjustment, assigned, then a mixer, respectively gave TV spot performance mixer, mixer, recording standby mixer or other equipment. 5. audio output: analog audio output General signal Jack mostly using RCA Lotus connectors. If it is a digital signal that can be sold in fibre, FireWire and other digital output mode. 6. Insert the plug into the Jack on the INS: sound mixer in JackBetween input and output, it uses the TRS stereo connector to connect. On the plug INS inserted a lot of sound Division may also not be used, it can be a peripheral device is plugged into the mixer a input channels, group channel or the primary (left and right channels) channel, separate the Insert channel sound signal processing. When using three core TRS stereo connector to connect from the big three-core TRS stereo plug head-end output signal, you want to insert the input-side of the device, and then removed from the device's output sent signals received three core TRS stereo plug of the loop ends, and then flows into the mixer. For example we can use this method to a mixer 1, 2-channel microphone plugged into an equalizer, equals to 1, 2-channel tube microphone this truncated, combined with a water processor (equalizer), and then enter into the mixer, so adjust sound better. The above is a mixer, whatever is enter part of a mixer or output part, the use of Jack and the signal connection is basically the only pay attention to when the connection is correct. Second, the equalizer, compressor connection: 1. Equalizer: we all know the main features of the equalizer is to adjust the colors, adjust the sound field and sound feedback suppression are therefore now audio system Equalizer almost indispensable apparatus, balanced input and output components are used when connecting a balanced socket, it is best to adopt a balanced XLR connector lines, of course you can also use TRS balanced line connector. 2. press for: compression is processed audio signals of a device, you can connect the audio signal of dynamic compression or limiting. In fact we now use compression when the main function is to make it compact high level signal, which protects its subordinate of audio equipment. It can be said in a complete set of audio equipment, in addition to a mixer and equalizer, compressor is considered to be the most important peripherals, so normally the compression device should be placed in front of the power amplifier, and other peripheral equipment. The connection can be balanced XLR connectors or TRS connector lines of balanced lines. 3. electronic divider connection: electronic dividers refers to be 20Hz--20000Hz band audio signal into appropriate, different several frequency section, and then sent to the amplifier to boost the sound of an audio peripheral equipment. Current e-modulus prescaler input also is relatively simple, but the output section is more complicated: treble output, audio output, bass output. In the connect bass signal output and treble signal output must not be confused, or treble signal to the subwoofer speakers, bass signal to a high-pitched sound, the sound system may not sound out, because the frequency of wrong, maybe it will burn out the speakers and other devices! e divider in connection with XLR connector flour can balance line or TRS connectors balanced lines. 4. feedback suppressor of connection: the connection of the devices also use XLR connectors balanced TRS connector line or a line of balance, connection methods can be divided into the following three types: 1, like the equalizer, and other peripheral equipment that order threaded in audio system, the advantages of this connection: the connection and operation is very simple, applicable to the simple system. But the disadvantage is that the connection method in suppressing microphone acoustic feedback, also affects the through the feedback suppressor of other audio sources. 2. use a mixer channel in INS inserted/plug out of the interface, the feedback suppressor single threaded in the channel, so that the connection has the advantage that you can maximize the feedback suppressor make adjustments, you do not have to take into account the impact of other audio sources. The disadvantage is: use this connection method, a single feedback suppressor can only control two-channel mixer, equipment utilization rate is too low. 3. use a mixer marshalling of plug INS inserted into/out of the interface, the feedback suppressor threaded in the Group channel, its advantages are: you can compile into this group within the microphone for centralized processing, and does not affect other audio sources. On the whole as a result of this approach can fully utilize the feedback suppressor, and therefore the current maximum connection method. Fifth, digitally connected: delay unit to the audio signal to delay treatment, generally used in some large acoustic space, multiple sets of speakers spoke in sound reinforcement systems. Because in such a system sound from different location after the issue of the speaker, reach the listener's ears is a priority, in order to ensure the sound and image consistency, increase the readability of the voice, the voice of turbidity are avoided, and drag the end, we need to use the related processing delay unit. Determination of the object on the delay is the delay for who? is actually very simple, as long as you understand it better in the following three points: 1, the first is people-oriented, more and better sound equipment for human services, and therefore in a sound field, we must first of all to the audience. 2, the second is the main sound source, usually that is the main speaker and main stage located. Ideally should be the primary sound source the sound directly to the audience's ear is ideal. But because of the speaker's energy, range, directional, acoustic sound pressure uniformity and other reasons, so now most of indoor sound reinforcement system to increase the number of visitors from the proximity of the auxiliary fill the voice box. 3. the third point major refers to those from the audience proximity support supplement voice box, or you may need to delay processing of sound box. The vast majority of cases are: determines the first element, determine the second factors the primary sound source, and then on the third element of the auxiliary fill sound box to delay processing. Sonic probably 340 metres per second, so the delay time according to the third factor of auxiliary speaker and the first element in the distance between the main speaker. Know the lingering objects can correct connection delay unit, connection is essentially like equalizer, and other peripheral equipment as concatenated audio systems need to delay the signal path, using the balanced XLR connectors or TRS connector lines of balanced lines to connect. Sixth, the actuator connection: audio actuator is actually a harmonic generator, use one of the psycho-acoustic characteristics of sound signals are modified and beautification of audio processing equipment. Exciter typically have the following three connection using method 1, you can like equalizer, and other peripheral equipment thatConcatenated audio systems need encouragement of signal path, for example in a mixer, 1-2 group is the human voice, if you want to make the marshalling of the human voice, incentive handle actuator using Insert/plug out of the interface connected to a mixer for 1-2 group channel. 2. If you want to make comprehensive treatment, the master volume in the sound mixer output channels or other group, and other output channels threaded one actuator. 3, the actuator can also be like effects that sends out a signal from the AUX and then return to the sound mixer, so you can adjust what channel needs to be dealt with, need to work encouragement of intensity is much, this is actually more flexible. Actuator in signal connection, also use XLR connectors balanced TRS connector line or a line of balance. 7. connect the digital effects: effects is processing, the manufacture of various sound field effect of audio peripheral equipment, typically used on the human voice, in most sound system, if the voice without effects processing becomes no fullness and brightness, that is: no moisture moves. Now the latest effects are using digital processing chip, so we also known as: digital effects. Effects less like equalizer, and other peripheral equipment as concatenated audio system, normally are sent from the AUX signal mixer to the effects of input interface, and then from the effects of the outgoing interface returns signal to a mixer. The signal connection, mostly with TRS connector to connect the balance line, a small number of professional effects and some with XLR connector for connection of balanced lines. VIII. the power amplifier and speaker connection: this should be very familiar with it, just want to pay special attention to: the signal amplifier the signal line to line with balance as far as possible, to minimize the noise. A lot of audio engineers likes to keep all the way or two way signal wire multiple amplifier, but if more than four power amplifier, or the proposed signal amplifier out quantity enough, there is no attenuation signal cable supply each amplifier is used alone, this can reduce system noise, reduce risk, improve the SNR. In the power transmission connection, try to use coarse, shorter speaker cable and wiring with reasonable to shorten the distance between the speaker cable, then one must pay attention to the positive and negative, to avoid a short circuit. Device connection issues: 1, note power: audio equipment to a dedicated power supply, power supply and lighting, and light like the separation of the low point of voltage, but audio is a standard voltage. There is a dedicated power supply, but also a reliable power source, you can use the "power" series converters, although cost increase but improves stability and ease of use. In short: the correct, secure connection all audio equipment of power supply is crucial. It is also important to note that some parts of the imported equipment power supply 110V and 220V will be the selection switch in our country, be sure to select the location in 220V can connect power. 2. takes note of the equipment of the ground: the right to all audio devices connected to the ground is very important, good grounding can reduce equipment signal transmission interference and improve the stability of the device. Note that the grounding line according to the standard of grounding lightning conductor to do, is buried in the underground part of the conductor to rust, contact good, deep underground to, must not, and three-phase power supply line configuration with grounded, so not only will not reduce the noise in the acoustic system, but also easy to damage the device. 3. pay attention to selecting the right connection signal cable: a stereo equipment, we can use XLR card balance line to connect you to not use TRS balanced line connection; can I use TRS balanced line connections do not use TS mono even non-equilibrium line; there is no way you can use TS Mono non-equilibrium line connected devices. 4, notice the RP and signal circuit: signal lines often cause silent short circuit fault, check it very troublesome, unless one signal line down multimeter test, so the welding line to be extra cautious when. 5. takes note of the signal line length: when you connect the device, try to use short signal cable, one to save costs, reduce line drag and interference. Normally, the use of balanced transmission signal cable for up to 300 meters, and non-equilibrium line you can do long-distance transmission. 6. takes note of the device-level: If the device Panel + 4 and-10 or-20-level switch, normally we will put in place, this + 4 is the standard level. Express 7, note: many of the device has a pass-through (Bypass) key, when the device is normally straight then do not work, so we should pay attention to check this key, or if we let compressor for Express do not work, the compressor for rear protective device is lost. 8, accidentally: due to the device, press the key number, they are often prone to malfunction, such as some electronic divider has a "× 10" button, we take care not to press it lightly. For example our crossover point adjustment in 200Hz, press this button to 200 × 10 becomes 2000Hz, so be sure to avoid misoperation.