The specific operation method is as follows:

1. Search the song name from the Internet, and then download the selected dual-track song (dual-track song). After downloading, you can add the dual-track song to the Beaver Video Converter by clicking the "Add Video" button.

2. Set the mp3 format and click the inverted triangle button behind the preset scheme to enter the format selection. Everyone knows that mp3 is an audio format, so we need to enter the "Common Audio" option to select the mp3 format. You can see that Beaver All-in-one Video Converter not only supports the output of mp3 format, but also supports the output of many currently popular audio formats, including lossless music format.

3. There is an audio track option on the main interface of Beaver Video Converter. When the software imports a dual-audio track song, there are two audio tracks available for us in the audio track option. Select, usually the default is the original track. After selecting the audio track, you can preview the song through the video preview window on the right to see if it is an accompaniment track.

4. After selecting the accompaniment track, you can set the storage directory to convert and output the accompaniment song. You can choose the storage directory by yourself. There are no specific requirements for this. Just set it to the specified folder. After the setting is completed, click the conversion button to start the conversion.

5. After the conversion is completed, you can directly click the "Play" button to play the music and check whether the original song is still there.

Mp3 is a player that can play music files. It mainly consists of memory (memory card), display (LCD display), central processing unit [MCU (microcontroller) or decoding DSP (digital signal processor) etc.

Saehan launched the world's first MP3 player - MPMan F10 in 1998.

Purchase:

Styling

Excellent styling design not only shows the uniqueness of MP3, but also determines the quality. One of the most important signs.

The shape must be unique. Since it is not easy to develop MP3 molds and there are certain appearance design patents, manufacturers must position these products as high-end models and will put more effort into it. The matching of tones is very important, and usually senior designers will pay great attention to this aspect. It does not necessarily have to be bright colors, but it must be reasonably matched to make the MP3 look more noble and elegant. It has a strong visual impact on users, especially those products tailored for fashionable and beauty-loving girls. Color is more attractive than any function. In addition, after advanced baking paint processing, the shell will not lose color easily, which can be seen from the color reflectivity of the shell.

In terms of material selection, metal is the best, followed by rubber, and engineering plastics are the worst. Of course, this does not mean that MP3 players made of metal are good products, but metal is relatively more resistant, and It looks more beautiful, more textured and classy. As the saying goes, "Connoisseurs can tell if something is wrong as soon as they touch it." You can roughly judge the material quality of the MP3 by touching the outer shell of the MP3 and seeing if it fits smoothly. The workmanship mainly depends on the subtleties of the product and the connection positions between various parts. If the shell splicing is urgent (especially the battery cover position), the buttons are soft and comfortable, and there are no burrs or uneven body problems, it basically passes the test.

Light weight is something that cannot be ignored. MP3 is a Walkman device. No matter how prominent the appearance design is, if it is not easy to carry or is too large, it will lose the essence of "portable". Mirrors are a very popular design at the moment, but real nano-mirrors can clearly reflect light and serve as mirrors. The biggest flaw of the mirror is that once it is scratched, the scars will become very obvious, just like a beautiful woman who has torn her face. The fuselage shape of Danding's DX-8 is a streamlined elliptical shape, and the curves at the upper and lower ends are different. It looks very similar to the plan view of an egg, so it was named "Easter Egg".

Reference: Baidu Encyclopedia ?mp3