A covered flute of 32', 16', 8', 4', or (rarely) 2' pitch. It is perhaps the most common covered flute stop. It is similar to, and occasionally synonymous with, Bourdon, Stopped Diapason and Tapadillo. The earliest examples of Gedeckt and Gedakt appear to postdate the earlest examples of Gedackt and Gedact by about a century. These names are, or are derived from, the past participle of decken, meaning to cover. The name Vox Pileata comes to us only by way of a footnote in Audsley's entry for Pileata in which he quotes Regnier. While the name Flet is described in the literature as a synonym for Gedeckt, it is more likely that it is a synonym for Flute. According to Grove, the name Flautado de Violon means neither a Diapason, as implied by Flautado, nor a string, as implied by Violon, but is the Spanish synonym for Gedeckt. See also Flautado Violón.
Osiris contains around 560 examples of Gedackt, around 300 examples of Gedeckt, around 40 examples of Gedact, and around 20 examples of Gedakt; the earliest ones are listed below. The same source contains two examples of Pileata (both in the same location), four examples of Flet, and four examples of Flautado de Violón. Examples exist in nearly every organ that employs German stop names at all. No examples are known of Obtusa, Obtusior, Pressior, Tonbass, Thunbass, or Vox Pileata.