Below is a quick waveform depiction of most common breath sounds. Following that is a list of fast access audio clips of various lung sounds.
Normal Vesicular Breath Sound
They have an inspiration/expiratory ratio of 3 to 1 or I:E of 3:1.
Bronchial Breath Sound
Bronchovesicular Breath Sound
Crackles
Coarse
Fine
Wheeze
Ronchi
Sounds like gurgling. Or toilet flushing. Or snoring
Stridor
Pleural Rub
Sources