
Car players generally support music in mp3 and wma formats. The following is an introduction to mp3 and wma formats: mp3: MP3, whose full name is Moving Picture Experts Group Audio Layer III, is a popular digital audio encoding and lossy compression format today. It is designed to significantly reduce the amount of audio data, while for most users, the playback sound quality does not noticeably degrade compared to the original uncompressed audio. wma: It is a new audio format introduced by Microsoft, comparable to the MP3 format. WMA surpasses MP3 in both compression ratio and sound quality, far exceeding RA (RealAudio), and can produce good sound quality even at lower sampling frequencies.

Over the years of commuting by car, I've found that most car audio players can handle common formats like MP3 and WMA. I often use a USB drive to store songs, and MP3 files are the most hassle-free since they're recognized by both older and newer car models. However, after upgrading to a car stereo with a large touchscreen, I discovered it also supports lossless formats like FLAC, which delivers much richer audio details. But be aware that some older car models might only recognize MP3 files at 128kbps bitrate, so higher-quality files may not play. Nowadays, new cars typically support Bluetooth AAC transmission, making it super convenient to stream music from apps like NetEase Cloud Music via smartphone. In summary, MP3 with lyrics, compressed WMA, and lossless FLAC remain mainstream choices.

When it comes to car audio modification, I pay the most attention to format compatibility. Most factory car stereos can directly play MP3/WMA files, but for lossless formats like FLAC or WAV, it depends on the car stereo's chip performance. My German car can smoothly play 24bit FLAC files. Bluetooth transmission usually supports AAC and SBC formats, but Apple's ALAC may not be universally compatible. The SD card slot also has file system limitations, with FAT32-formatted USB drives being the safest option. For testing, I recommend copying a small playlist first to avoid discovering unsupported files while driving.

When taking kids out, I always play children's songs in the car. I find that storing regular MP3 files on a USB drive is the most hassle-free solution, as they can be played on almost any car stereo. Occasionally, I've tried high-quality FLAC files, but they sometimes fail to produce sound. Nowadays, I mostly use Bluetooth to connect my phone and stream QQ Music directly, though some older car systems only support the lowest-quality Bluetooth audio formats. It's advisable to test a few mainstream formats in advance to avoid fumbling with music switching while driving.


