There are, it may be, so many kinds of voices in the world, and none of them is without signification.
It may be - speaking by conjecture. 'It may chance' (1 Corinthians 15:37).
So many - as are enumerated by investigators. (Compare "so much," for a definite number left undefined, So many - as are enumerated by investigators. (Compare "so much," for a definite number left undefined, Acts 5:8.)
Kinds of voices - of articulate speech: languages х foonoon (G5456), distinct from gloossoon (G1100), "tongue"].
Without signification. None is without its own voice or meaning distinct from the rest.