The voiced velar stop is a type of consonantal sound, used in many spoken languages.
Some languages have the voiced pre-velar stop, which is articulated slightly more front compared with the place of articulation of the prototypical voiced velar stop, though not as front as the prototypical voiced palatal stop.
Conversely, some languages have the voiced post-velar stop, which is articulated slightly behind the place of articulation of the prototypical voiced velar stop, though not as back as the prototypical voiced uvular stop.