Write by hand like this and play the song.

Audio format is music format. Audio format refers to the process of playing or processing audio files in a computer, which is the process of digital-to-analog conversion of sound files. The maximum bandwidth of the audio format is 20000HZ, the rate is between 40~50KHZ, linear pulse code modulation PCM is used, and each quantization step has an equal length.

Common formats

CD

The sound quality of the CD format is a higher audio format. In the "Open File Type" of most playback software, you can see the *.cda format, which is the CD audio track. The standard CD format is a sampling frequency of 44.1K, a rate of 88K/second, and 16 quantization bits. CDs can be played in CD players or replayed using various playback software on computers.

A CD audio file is a *.cda file. This is just index information and does not actually contain sound information. Therefore, regardless of the length of the CD music, the "*.cda file" seen on the computer ” are both 44 bytes long. Note: You cannot directly copy *.cda files in CD format to the hard disk for playback. You need to use audio track capture software like EAC to convert the CD format files into WAV. This conversion process will only occur if the quality of the CD drive is acceptable and the parameters of EAC are set. If done properly, it can be said to be basically lossless audio capture. It is recommended that everyone use this method.