tcl-snack-dev 2.2.10.20090623-dfsg-6 (ppc64el binary) in ubuntu xenial

 This package is needed for building transcriber, and contains
 snackConfig.sh, snack.h.
 .
 Snack provides a sound functionality extension to the Tcl/Tk language.
 .
 Snack is an extension to the Tcl/Tk scripting language
 that adds sound functionality. There are commands to play, record,
 edit, and even visualize sound. Snack supports in-memory sound
 objects, file based audio, and streaming audio. It handles
 file formats such as WAV, AU, AIFF, MP3, and OGG Vorbis.
 .
 This package contains files to be used for development of C-based
 extensions which use the Snack library.