Stutterers are trained to slow down their speaking rate by stretching vowels and consonants. Other methods include soft speech contacts. This helps to make very slow but non bumpy speech used only in the speech clinic. To make more normal sounding speech for daily life speed of speech is increased. Many people find their speech does not sound natural at the end of therapy. Fluency shaping approaches are normally taught in groups therapy programs, which may take two to three weeks to complete. More recently the Camperdown program, using a much shorter schedule, has been shown to work well.