Knowledge
  • What Is Real Audio?

    Date:2018.Nov.09
    Real Audio is a music compression format introduced by Real networks; the compression ratio can reach 1:96, so it is popular on the Internet. The compressed music files can be played back smoothly on a computer...
  • What Is Digital Signal Processing (DSP)?

    Date:2018.Nov.09
    Digital Signal Processing (DSP) technology has a wide range of applications in analog electronics such as tone control, distortion effects, and Wah-wah pedals. At the same time, DSP can also play a variety...
  • What Is A Wave Table?

    Date:2018.Nov.09
    The wave table means "waveform table". In fact, it records all the sounds (including the various ranges and tones) that can be produced by various real instruments and stores them as a wavetable file...
  • How Is MIDI Music Played?

    Date:2018.Nov.09
    When playing MIDI, the computer sends an instruction to the sound card, and the sound card recombines the MIDI information according to the instructions. Therefore, the playback effect of MIDI depends on...
  • What Is the Difference Between MIDI and Normal Audio Files?

    Date:2018.Nov.09
    1. The file size is different A MIDI song that can play for about 5 minutes, its capacity is only a hundred Kbytes. The waveform music file of the same song, such as WAV, is as high as 50MB, even if it is compressed...
  • How Does A Wireless Microphone Work?

    Date:2018.Nov.09
    Wireless microphone consists of two parts: transmitting and receiving. Wherein, the transmitting part is powered by the battery, and the microphone converts the sound into an audio signal...
  • What Is the Working Principle of the Sound Pickup?

    Date:2018.Nov.08
    A sound pickup is a commonly used component for collecting sound in audio equipment. Since the sound pickup can collect the sound in real time on the spot, it is like real-time monitoring of the sound source...
  • What Is A Wireless Invisible Headset?

    Date:2018.Nov.07
    The wireless invisible earphone is an inductive receiver with the best design of the human body contour. It is part of the whole set of invisible receiving devices. It needs to be used with the sensing module...
  • What Are the Features of Telephone Headsets?

    Date:2018.Nov.07
    Telephone headsets are designed for voice transmission and are primarily connected to telephone boxes or computers for use in offices and call centers. Features: 1. The bandwidth is narrow and designed for...
  • What Is Speech Recognition Technology?

    Date:2018.Nov.07
    Speech recognition technology, also known as Automatic Speech Recognition (ASR), aims to convert vocabulary content in human speech into computer readable input such as buttons, binary codes or sequences...
  • What Are the Features of USB Condenser Microphone?

    Date:2018.Nov.07
    1. It can show the characteristics of original sound reproduction. From the basic design principle of microphone, it is not difficult to find that condenser microphone not only relies on sophisticated...
  • How Does the Video Conference Select the Camera and Microphone?

    Date:2018.Nov.07
    First, the choice of camera (1) The lens The lens is an important part of the camera, and the photosensitive elements of the camera can be divided into CCD and CMOS. CCD (Charge Coupled Device) is a high-end...
  • What Are the Suppression Methods of Squealing?

    Date:2018.Nov.06
    1. Keep the microphone away from the speaker This method is difficult to achieve in the dance hall, because the area of the dance hall is generally small. However, in theaters or large venues, this method can have...
  • The Directivity of A Hearing Aid Microphone

    Date:2018.Nov.06
    1. Omnidirectional microphone The omnidirectional microphone senses sound pressure changes in all directions and accepts sound from all directions with equal sensitivity. Its pickup characteristics...
  • Why Does the Microphone Produce An Echo Whistle?

    Date:2018.Nov.06
    After the sound of microphone is picked up, the sound is amplified by the mixer, peripheral devices, power amplifiers, and speakers. This sound enters the microphone through direct radiation or acoustic reflection...
  • The Principle of Directional Microphone

    Date:2018.Nov.06
    Directional microphones suppress noise from certain directions while retaining good sensitivity to sound in one direction. The microphone can be used to transmit sound to the sides of the diaphragm...
  • What Is the Function of the Speaker Net Cover?

    Date:2018.Nov.06
    The mesh on the speaker is mainly dustproof and protective for ordinary speakers. The dust screens on the market are usually dark, so the purpose of the design is mainly to prevent direct sunlight...
  • What Is Binaural Effect?

    Date:2018.Nov.05
    The basic principle of binaural effect: If the sound comes from the front of the listener, at this time, because the distance from the sound source to the left and right ears is equal, the time difference...
  • What Is Sound Effect Technology?

    Date:2018.Nov.05
    Hardware 3D sound effect technology is now more common in SRS, APX, Spatializer 3D, Q-SOUND, Virtaul Dolby and Ymersion. Although they implement different methods, they can make people feel the obvious...
  • High-power Amplifiers Should not be Used in Public Address Systems

    Date:2018.Nov.05
    From the internal structure of the power amplifier with large output power, it can be found that in order to take care of the size and cost of the cabinet, the power transformer and the output transformer...