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      MP3 player is the use of digital signal processor DSP (Digital Sign Processer) to complete the processing and transmission, and decoding iPod MP3 Players file tasks. DSP in charge of player data transmission, device interface control, file playback decoding activities. DSP can be a very short time to complete various processing tasks, but this process consumes very little power (this is it suitable for portable players, a distinctive feature). Sports MP3 Players first song files from the memory and read out the memory on the decoder chip signal → to decode the signal → the solution out through the DAC digital signals into analog signals then converted analog → audio amplification → low-pass filtered to the world's first MP3 player headphone output port, the output is what we heard after the music.

      Disney mp3 player by the liquid crystal display (now there is a plush camera, there is no display screen), microprocessors, digital signal processor (DSP) chip, input and output controllers, amplifiers and a number of buttons formed. Microprocessor is the player's "brain", to accept the user to select the playback controls, and the currently playing song information is displayed on the LCD screen, and then to digital signal processing chip to issue an order to accurately process the audio signal . Digital signal processor first MP3 file with a decompression algorithm to extract, Hello Kitty MP3 Players then use the DAC will convert digital waveform information, and then the signal amplified by the amplifier and sent to the audio port, and finally we can connected to the mini dv player on headphones to hear the audio port sounds of music. Please visit TradeTang.com.