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  • Audio coding summary

    PCMU(G.711U) Type: Audio Maker: ITU-T Required bandwidth: 64Kbps (90.4) Features: PCMU and PCMA can provide better voice quality, but they occupy a higher bandwidth, requiring 64kbps. Advantages: excellent voice quality Disadvantages: higher bandwidt

    Posted at 21-05-11 by SKYSKY views(60)

  • DVB-C video is transmitted in SPI interface and ASI interface

    There is video of two kinds of MPEG2 in the transmission interface of current DVB-C system equipment code shedding transmits interface standard: Asynchronous is serial interface ASI and SPI of synchronous and collateral interface. SPI altogether has

    Posted at 08-08-11 by Admin views(2957)

  • What is the standard for adjusting the sound? What is the standard for adjusting the sound?

    Adjusting the sound is definitely a science. Many audio fans have listened to the audio for a lifetime, but never feel that the audio is not good enough, and finally announced to give up. This is the result of not adjusting the sound system. How to a

    Posted at 21-03-17 by SKYSKY views(52)

  • Design a simple FM wireless microphone Design a simple FM wireless microphone

    1. Principle of wireless microphone The electronic microphone first converts various sound signals into audio electrical signals, and then this electrical signal modulates the high-frequency signals generated by the electronic oscillator. Finally, th

    Posted at 21-03-17 by SKYSKY views(69)

  • Types and classifications of speakers

    The speaker is also known as the speaker system. It assembles high, medium and woofer speakers in a specially designed cabinet, and sends the high, medium and low frequency signals to the corresponding speakers through a crossover network for playbac

    Posted at 21-03-17 by SKYSKY views(83)

  • Introduction to audio technology terms

    1. B standard stereo One of the stereo sound pickup methods uses two microphones with exactly the same sensitivity and directivity (commonly used cardioid directivity), and the distance between each other is about 1.5 to 2 meters (also can be reduced

    Posted at 21-03-24 by SKYSKY views(70)

  • Audio processing-1 basic knowledge

    Audio Refers to the sound waves with a sound frequency between 20 Hz and 20 kHz that can be heard by the human ear. If you add a corresponding audio card to the computerthe sound card we often say, we can record all the sounds, and the acoustic cha

    Posted at 21-04-27 by SKYSKY views(62)

  • Audio and video development and learning

    We first assume that someone has zero foundation in audio and video, and has never learned any digital signal processing related knowledge. The mathematical foundation is basically high school level, but he is familiar with C/C++ development, at leas

    Posted at 21-05-11 by SKYSKY views(41)

  • Basic knowledge of wireless microphones

    To popularize the knowledge of wireless microphones and briefly introduce to you the performance of each frequency band, use occasions, etc. The wireless microphone is divided into three frequency bands, the FM section. VHF section, and UHF section.

    Posted at 21-03-16 by SKYSKY views(63)

  • Audio parameter analysis

    1. Audio Refers to sound waves with a frequency between 20 Hz and 20 kHz that can be heard by human ears. If you add a corresponding audio card to the computer, which is what we often call a sound card, we can record all the sounds, and the acoustic

    Posted at 21-05-12 by SKYSKY views(45)

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