It actually says keine Rasselgeräusche - no crackles/rales - but you could say "no adventitious sounds"

http://de.wikipedia.org/wiki/Rasselgeräusch

http://www.meddean.luc.edu/lumen/MedEd/medicine/pulmonar/pd/...

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Note added at 7 hrs (2012-09-21 15:02:06 GMT)
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Everybody please read this!

http://ajrccm.atsjournals.org/content/156/3/974.full#sec-10

RESPIRATORY SOUNDS
Classification and Nomenclature

Lung-sound nomenclature has long suffered from imprecision and ambiguity. Until the last few decades, the names of lung sounds were derived from the originals given by Laënnec (1) and translated into English by Forbes (52). These names carried the implication of the pathologic mechanism of their production, e.g., humid or dry rales, or the character of the sound, e.g., hissing rale. The need for a more objective naming system has long been recognized (2, 53). In 1985, at the 10th meeting of the International Lung Sounds Association, an ad hoc committee agreed on a schema that included fine and coarse crackles, wheezes, and rhonchi (54). Each of these terms can be described acoustically and does not assume a generating mechanism or location. These terms are now widely accepted, although the term “rale,” generally meaning “crackle,” is still frequently used (55).