what is the sound waves? asn state the range of the sound waves in air?

there are many complexities relating to the transmission of sounds, at the point of reception (i.e. the ears), sound is readily dividable into two simple elements: pressure and time. These fundamental elements form the basis of all sound waves. They can be used to describe, in absolute terms, every sound we hear. Figure 1 shows a `pressure over time` graph of a 20 ms recording of a clarinet tone).However, in order to understand the sound more fully, a complex wave such as this is usually separated into its component parts, which are a combination of various sound wave frequencies (and noise).[6][7][8] Figure 2 shows an example of a series of component sound waves such as might be seen if the clarinet sound wave (see above) was broken down into its component sine waves, but with the lower frequency components removed (the frequency ratios shown in figure 2 are too close together to be low frequency components of a sound).Sound waves are often simplified to a description in terms of sinusoidal plane waves, which are characterized by these generic properties: Frequency, or its inverse, the Wavelength Amplitude Sound pressure / Intensity Speed of sound DirectionSound that is perceptible by humans has frequencies from about 20 Hz to 20,000 Hz. In air at standard temperature and pressure, the corresponding wavelengths of sound waves range from 17 m to 17 mm. Sometimes speed and direction are combined as a velocity vector; wave number and direction are combined as a wave vector.Transverse waves, also known as shear waves, have the additional property, polarization, and are not a characteristic of sound waves.