This is actually a quote from the late Charles Fisk, an American organbuilder concerning the topic of articulation.hans wrote:We all know about "Chiff". It is the little incise or transient that an organ pipe gives out naturally when it begins its tone. The chiff sounds like "KAA. . . " and sometimes "CHAA. . ." or even "SHAA." With too little wind it takes on a tubercular quality, a kind of cough. In E. Power Biggs's words, the chiff is the consonant that precedes the vowel. Using his metaphor it is easy to show that the chiff, or something like it, is essential to articulateness--for: Who ever heard of articulation without consonants? Some form of chiff was present in all the early organs.
What has not been brought up is the term organbuilders use for the noise or breathiness in the tone - 'sizzle'. It is often referred simply as noise, or trashiness, but sizzle is most common one.
So, I guess that leaves us with Chiff, Sizzle and Fipple!