There are two types of audio and layered. In a combination of audio, its circuits (including electric singers) are in a shell. This structure is generally used in low -grade combination audio. In the layered combination audio, the number of layers of different layers depending on the grade of the machine is also different. The combination audio with more layers is: the first layer of the electric singing machine, the first layer of the CD singer, the first layer of the tunner, the dual -card recorded sound seat, the first layer of the audio controller, and the first layer of the main power amplifier. In the combined audio with fewer layers, the electric singing machine and the CD singer are divided into one layer, and the others are one layer. Microscopy, digitalization, professionalization, and film and television are the inevitable development trend of home audio.

miniaturization

Micro -desktop combination audio has a long history of development, and high -end super -small combination audio has appeared more than 10 years ago. However, because the listening speakers, stereoscopic voicers, and record card seats are not solved, they have been staying at a lower grade. In order to create a small audio world, not only should we work hard from the amplifier, control components, and left and right speakers, but also have to consider the tunner, CD singer and recording card seat.

Digitizing

Digital technology is a new technology, so digital audio develops when solving the distortion problem of simulated sound noise. After the audio uses digital technology, the recorded digital signal is from the frequency of sampling to quantitative characteristics. It has a high resolution, no color jitter, and obtaining a very clear image. And it can be interchangeable with the upper machine, which is incomparable to the simulation recording device. Digital recording can enter the time, person name, and address into the tape together, use a miniature keyboard to complete the catalog work, replace the track number, and add the remote control function, so that you can automatically search for the required tracks and easy to use.

Film and television

With the development of electro -acoustic technology, film and television technology, and computer technology, digital audio can constitute a multimedia film and television audio system in the family. Such a system can hear a variety of signal input and functional conversion that adds a variety of required signal on the input end. Through computer processing, the audience can see various images and hear various sounds.