The standard sound format of computers: WAVE

Wave files are sound specifications developed by Microsoft. Due to its long history, Microsoft uses "WAVE" extensively in its operating systems. For example, the sounds of entering and exiting Windows, the sounds of various events when operating the mouse, etc. all use the WAVE sound format.

The extension of the Wave file is "wav". It directly samples the analog sound signal and converts it into digital data and stores it in the computer. Therefore, According to the sampling frequency, it can be divided into "8000 Hertz (Hz)", "11025 Hz", "22050 Hz" and "44100 Hz". The larger the value, the closer the sound recorded by the computer is to the original sound, but other The file size is also larger. Taking 44100 Hz as an example, 1 minute of sound occupies about 1 million bytes (1MB).