<P> Respiratory sounds , breath sounds , or lung sounds refer to the specific sounds generated by the movement of air through the respiratory system . These may be easily audible or identified through auscultation of the respiratory system through the lung fields with a stethoscope as well as from the spectral chacteristics of lung sounds . These include normal breath sounds and adventitious or `` added '' sounds such as rales , wheezes , pleural friction rubs , stertor and stridor . </P>
the whistling sound produced due to the movement of air through narrow airways is called
Respiratory sounds , breath sounds , or lung sounds