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Development history of car MP3
Time：
2022-12-30 09:39
Source：
The first generation is a relatively simple plug-in product that is plugged into the cigarette lighter and gets electricity through the cigarette lighter. There are dozens of brands on the market;
The second generation is a mobile phone-sized portable car MP3. In addition to better sound quality and larger capacity, the main symbol of the second generation is voice control, which is more suitable for the safety needs of drivers.
The following is a comparison of the two generations of products from various aspects:
1. Sound quality In the first generation, especially some low-priced products, in order to save costs, a simple transmission circuit is used, and the sound quality will inevitably have relatively large noise. The second generation uses the most advanced dedicated transmitter chip to ensure better sound quality.
2. Service life: The biggest hidden danger of the first generation is the damage caused by voltage shock. Since the power is supplied by the cigarette lighter, the cigarette lighter is only designed for lighting cigarettes and has no voltage stabilization measures, so there is often a strong voltage shock when the car is started. Experts warn car owners that when the car is ignited, do not insert the car MP3 into the cigarette lighter, otherwise it may cause overvoltage and burn out. If you fully comply with the manufacturer's regulations, you need to plug and unplug repeatedly, and sometimes you have to plug and unplug several times along the way. Over time, it will easily cause damage to the car MP3 or even the cigarette lighter. Since the use of the second generation has nothing to do with the cigarette lighter, there is no problem of short life.
3. Memory capacity. Some of the first generation only have 128M memory, which can only store dozens of songs. The memory of the second generation is more than 1G, which can store at least 300 songs.
4. Frequency range Some of the first generation only have two or three frequency points, once encountering local wireless signal conflicts, they will not be able to play. The second generation has 200 frequency points, and there is room for random selection.
5. Economical and affordable. The first generation can only be used in the car by plugging it into the cigarette lighter. The second generation gets out of the car, turns off the wireless transmitter, and plugs in the earphones. use value.
6. Voice-controlled song selection Voice control technology has made great progress after recent years of development and has entered a very practical stage. Voice-activated song selection is the outstanding feature of the second generation. Just say the name of the song, and the selected song can be played out of hundreds of songs within one or two seconds, making it more convenient and safe to choose songs while driving. It can be said that voice-activated song selection is the most competitive advantage of the second generation
7. High added value. Due to the application of voice control technology, the second generation has more additional functions, such as comic sketches, marketing, beauty lectures, 900 English sentences and so on.
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