News
  • What Is The Difference Between Dynamic Microphone And Condenser Microphone?

    Date:2018.Nov.20
    Because of the coil and magnet, the dynamic microphone is not as light as a condenser microphone. It has low sensitivity, and has poor performance in high and low frequency response. The advantage is that...
  • What's The Difference Between A Hard Source And A Soft Source?

    Date:2018.Nov.20
    Hard and soft sources are essentially the same, running a set of sampling programs and corresponding sounds in different hardware environments. The hardware source solidifies the program...
  • Huawei HWA HD Bluetooth Audio Transmission Standard

    Date:2018.Nov.19
    In 2018, Huawei launched a high-definition Bluetooth audio transmission standard---HWA. The full name of HWA is Hi-Res Wireless Audio. At present, wireless blue audio generally has excessive compression...
  • What Is The Depth Of The Sound Field?

    Date:2018.Nov.15
    The sound field depth refers to the distance between the foremost instrument and the last line instrument in the sound field. In the orchestra, the distance between the violin and the bass drum...
  • The Components Of Stage Sound System

    Date:2018.Nov.15
    Signal amplification and processing equipment: including mixers, preamplifiers, power amplifiers and various controllers and audio processing equipment. The primary task of this part of the equipment...
  • What Is The Principle Of Frequency Shift?

    Date:2018.Nov.13
    The frequency of the video signal is 0-6 MHz. When the interference frequency falls within the frequency range, interference will occur in the image. The principle of frequency shift is to directly convert...
  • How Do Transmission Lines Eliminate External Electromagnetic Interference?

    Date:2018.Nov.13
    Coaxial cable is shielded against electromagnetic interference. The coaxial cable is composed of an outer conductor and an inner conductor, and an insulating material is used as a filler between the inner...
  • The Cause Of Interference Signal

    Date:2018.Nov.13
    According to the source of the interference, it can be divided into three sources: 1. The interference caused by the front-end equipment: the interference of the power supply of the front-end camera...
  • What Is Exciter?

    Date:2018.Nov.13
    The exciter is a harmonic generator that uses human psychoacoustic characteristics to modify and beautify the sound signal. By adding various methods such as adding high-frequency harmonic components to the sound...
  • What Is Receiving Gain?

    Date:2018.Nov.12
    Gain is one of the main indicators of the antenna. It is the product of the direction coefficient and the efficiency, and is the performance of the antenna radiating or receiving the wave. The choice of gain size...
  • What Is Output Power?

    Date:2018.Nov.12
    The power amplifier's power specification is strictly divided into nominal output power and maximum instantaneous output power. The former is the rated output power, which can be interpreted as the maximum...
  • What Is Transmission Gain?

    Date:2018.Nov.12
    The transmission gain refers to the ratio of the output power of the amplifier to the input power, and the unit is usually expressed in "dB" (decibel). The output gain of the power amplifier increases...
  • What Is Time Division Multiple Access (TDMA) Mode?

    Date:2018.Nov.12
    TDMA is the abbreviation of Time Division Multiple Access. The carrier of the same frequency is divided into several equal small time periods in a certain time, and the users of multiple different...
  • What Is Time Division Duplex (TDD) Mode?

    Date:2018.Nov.12
    In a TDD mode mobile communication system, different time slots on the same frequency channel (i.e., carrier) are received and transmitted, and the reception and transmission channels are separated...
  • The Types Of Recording Studio

    Date:2018.Nov.12
    1. Personal recording studio. The personal studio is divided into small recording studios and medium-sized recording studios: (1) Small recording studio: This recording studio belongs to a professional...
  • The Function Of Mixer

    Date:2018.Nov.10
    The first function is to amplify the program signal. When the signals of different program sources enter the mixer, the amount of amplification required for different signals is not the same, so the mixer...
  • What Is AUX Terminal?

    Date:2018.Nov.10
    The AUX terminal is a 3.5mm standard dual-head interface that allows any audio device with a headphone jack to be connected to a car stereo, including MP3s, cell phones, tablets, and more. Only a 3.5mm interface cable...
  • The Principle Of Direct Digital Frequency Synthesis

    Date:2018.Nov.10
    Direct Digital Synthesis (DDS) technology is relative to Direct Analog Frequency Synthesis (DAS) technology. The DDS directly generates signals in discrete time, and generates modulated signals...
  • The Main Performance Index Of Frequency Synthesizer

    Date:2018.Nov.10
    Frequency synthesizers are an important part of modern electronic systems and are used in communications, radar, navigation, electronic countermeasures and test equipment. The main performance indicators...
  • What Is Audio Power Amplifier Distortion?

    Date:2018.Nov.09
    Audio power amplifier distortion refers to the phenomenon that the waveform of the reproduced audio signal is distorted, and is usually divided into two categories: electrical distortion and acoustic distortion...