Advice 1: How to connect to PC condenser microphone

There are at least three types of condenser microphones. Some of these devices can be connected to the computer directly, others will have to coordinate with the sound card input.
How to connect to PC condenser microphone
Instruction
1
Before connecting to the computer any microphones, please check the Pinout of the appropriate socket on the sound card, which usually has red color. This Jack is monaural, and the conclusion, which is common in usual stereo Jack, it connected with the average. There are mono plugs, which implemented a corresponding connection, and if none exists, manufacture it from the stereo by the corresponding connection. Such connectors never connect to stereo Jack for headphones or speakers, so as not to cause a short circuit.
2
On the sound card there is a special circuit of a capacitor and a resistor. Through the resistor is applied to the microphone power supply voltage (positive relative to the common wire), and a condenser microphone is removed the variable component of the signal. Therefore, if you have 1.5-volt electret microphone, just connect it to this socket via a plug with the correct polarity (minus to ground). Before that determine the polarity of its conclusions: negative terminal connected to the hull.
3
If the microphone is powered with a voltage of 3 V, when powered from the sound card the signal will barely distinguishable. Therefore, a decoupling circuit will have to be placed outside. Apply on the MIC, also the polarity of the voltage of 5 V (computer power supply) 5-kiliany resistor. The voltage drop on it would be so that the microphone will have just 3 V. the Signal feed to the input of the sound card through a paper capacitor with a capacitance of about 0.1 microfarad. In all cases the connection when the machine has stopped.
4
There are also condenser microphones that are not electret. Internal source of constant polarization in them, as there is no preliminary stage. To connect this microphone to the sound card directly. Use a special mixing console, designed to work with condenser microphones. And the signal from the line output of the console to post on the computer.
5
What to do if the connections are done correctly, but there is no sound? The reason for this can be software. Both in Linux and in Windows there is a special program virtual mixing console. It has virtual volume control of the microphone and its switch. Check their position and if necessary adjust.

Advice 2: How to connect mixer to computer

Many novice musicians are wondering how to connect the controller to multi-channel "soundcard". Some control to choose and how to ensure smooth operation of all Studio components? Depending on the type of remote connection methods will differ slightly.
How to connect mixer to computer
Instruction
1
Computerwide mixing console and a map. If you have a multichannel sound card and, say, 8-female panel, make connection as follows. As one DJ nest has the properties of both input and output, and sound card, these properties are represented by individual sockets, solder 8 music cables (in principle, you can buy ready). Inside every cable must be on the 2 signal wires. After this "granite" their twenty-four jacks (plugs). Eight of them stereo (for mixer), and sixteen – mono (for sound card).
2
To connect the mixer to the computer, use two cables "type a Tulip-mini-Jack", and connect to the inputs of the mixer outputs of the sound card. After that, installed the emulator, set the option to use an external mixing consoleand get to work. To connect the mixer, in any case, you need a multichannel sound card with 2 or more audio outputs. Virtual soundboard And Tractor'e or VirtualDJ will play on the first output and the second output. The signal coming from them, will act the same as real player or vinyl turntable.
3
Purchase special cables for switching. Within them should be laid two signal wiring. Cables set a certain number of slots, and is connected. Thus, using different drivers, you can output multiple independent audio channels. So will you provide the effect of multi-track audio playback.
4
If you have USBremote, just plug it to the USB output of the computer. It is a novelty among mixers, and, of course, is the most convenient method. Of course, with this remoteom suffers a bit quality playback, but this option is quite suitable for rehearsals and recording demo albums.

Advice 3: What is an electret microphone

The principle of operation of electret microphones are similar to condenser principle of operation. The difference is that they do not require external power. The diaphragm of such microphones receives the electric charge in the process. For their food need only a small voltage (about 1.5 Volt), which is created using the installed microphone in the battery.
Electret microphone
Electret microphone is one of the types of condenser microphones. He used part of a set of electronic equipment for professional and household use, professional studios and Amateur conditions in recording and other devices. They are frequently used by radio Amateurs-hams. Electret microphone is very reliable, has low weight and flat frequency response (frequency response).

Device electret microphones



These MICS are made in the form of capacitors, a certain number of plates which are made from very thin plastic film located on the ring. The film is applied to the electron beam. It penetrates to a shallow depth, creates a spatial charge which has the ability to persist for a long time. These materials are called "electret", so the microphone is called an electret.

Then the film is overlaid with a very thin layer of metal that is used as one of the electrodes. The other electrode is a metal cylinder, a flat surface which is located next to the film. Its fluctuations created by acoustic waves, able to create between the electrodes an electric current. Due to the fact that the current in this case is very small and the output resistance reaches a large magnitude (gigamon), the transmission signal generated by the microphone is quite difficult.

For matching the low resistance of the amplifier and the high impedance of the microphone must use a special cascade, which is created on the field (unipolar) transistor. It is placed in the body of the MIC capsule (the so-called device, which is not only the microphone but also the matching cascade). The body should be metallic, having the ability to isolate the microphone and to negotiate the cascade, making protecting it from external fields of electricity.

In order to understand the suitability for connection to the microphone one or the other amplifier, only connect to the input socket of the device (multimer). If, as a result it will show the voltage of 2-3 Volts, this means that the amplifier is suitable to work with an electret microphone.

The principle of operation and design



According to the principle of electret microphones are the same as the capacitor but the DC voltage in them is ensured by the charge of the electret deposited on the membrane in the form of a thin layer. This charge may persist for a long time (30 years or more)

The work of electret microphones is based on the ability of certain materials which have high dielectric constant, to change their surface charge due to the impact of the sound wave. These microphones have very high impedance, resulting in a possibility of their connection to amplifiers with high input impedance. In its design the microphones are divided into several types, when an electret material in them is at the front position is on a flexible diaphragm and is mounted on the back plate.
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