青云翻译

Noise spectrum can reflect the image of the sound frequency and sound level distribution of the size of the relationship. The human ear not only for the identification of small changes in sound pressure are less capable of the same frequency of sound is also difficult to identify small changes. Thus

Noise spectrum image to reflect the frequency distribution of sound and sound relationship of class size. Ear sound pressure not only small changes in poor recognition of, the same small changes are usually difficult to recognize to audio. Therefore, in the monitoring of noise, for convenience, a dy

正在翻译，请等待...

正在翻译，请等待...

Noise spectrum image to reflect the frequency distribution of sound and sound relationship of class size. Ear sound pressure not only small changes in poor recognition of, the same small changes are usually difficult to recognize to audio. Therefore, in the monitoring of noise, for convenience, a dy