the ‘p’ of ‘pin’ can be approximately described as a “voiceless bilabial stop”. This description is cast in the terminology of what is called ‘articulatory phonetics’.
- Hockett (1958), a pag.24

This study is called ‘articulatory phonetics’. In it, we are not particularly concerned with the phonemic status of the sounds which occur in this or that language, but rather with the sounds themselves as articulatory and acoustic events which can be directly compared from one language to another.
- Hockett (1958), a pag.62