. "Non-continuous- Rales, crackles, or crepitus sounds ??? ??? ??? Wheezing To breathe with hoarse whistling sound: to breathe with an audible whistling sound and with difficulty, usually because of a respiratory disorder such as asthma. ??? ??? ??? Rales/ Crackles A symptomatic chest sound: an intermittent crackling or bubbling sound produced by fluid in the air passages and air sacs of the lungs an" . . .