Question

Which vowels were affected by the GVS and how were they affected?

Accepted Answer

It affected long vowel sounds, pushing their place of articulation higher in the mouth. If they could go no higher, they dropped down and became dipthongs.

Front	Which vowels were affected by the GVS and how were they affected?
Back	It affected long vowel sounds, pushing their place of articulation higher in the mouth. If they could go no higher, they dropped down and became dipthongs.

Affected Vowels Gvs Long Sounds Pushing Place Articulation