What cable connects to a microphone?
The interfaces used by microphones are usually balanced interfaces, including the XLR interface, TRS interface, and TRRS interface. Therefore, the cables connecting the microphones include XLR cable, TRS cable, and TRRS cable.
1. The interface of professional microphone is XLR interface and Canon interface, usually three-core.
XLR name: Cannon X Series (series name), Latch (spring lock), Rubber (rubber. Wrapped with rubber on the contact surface). The one with the head is the male plug, and the one with the hole is the female plug.
2. TRS interface
T: tip (tip) - hot end (+) R: ring (ring) - cold end (-) S: sleeve (sleeve) - ground (shield) It is divided into a large three core (6.35mm) and a small three Core (3.5mm). Small three cores are generally used for headphones, set-top microphones, and small bees. The big three cores mainly appear in the professional audio field, and can be converted to each other with the Canon interface. The small three-core can be used on equipment that requires a large three-core through the conversion head of the large three-core.
3. TRRS interface
There is one more R than the TRS interface, that is, one more ring. Generally, it is a small four-core, which is used to connect a smartphone.
The headset on the mobile phone has one more microphone than the general headset for voice calls, so the extra ring is a line dedicated to transmitting the microphone signal.
Balance principle: The three connectors are: ground wire, hot end (+), cold end (-). Professional interpretation can be found by checking Baidu. I will talk about the popular version that I digest and understand to understand its transmission principle. (If there is something wrong, please correct me.) The three connectors are simply one ground wire and two signal wires. When interference occurs, the interference of the two signal lines is the same, so the terminal will do a subtraction to eliminate the interference. Therefore, the line of this type of interface has the function of balancing the analog signal, and the transmission signal is stable.
4. USB interface
There are many microphones that use the USB interface now. I myself prefer a USB microphone with a built-in sound card, because it is smaller and lighter than a professional recording XLR microphone, and its sound quality is better than a microphone such as a small bee.
USB is an acronym for universal serial bus. It transmits digital signals instead of analog signals, which reduces the steps of converting analog signals into digital signals, that is, the loss of signals due to conversion is avoided.
It has four wires, a power wire, two signals, the signal is output in series, and a ground wire.
With hot plug function. That is to say, when the computer is working, it can be directly plugged in and used without additional operations such as switching the machine on and off.
For more information of microphone cables, welcome to contact us.
