He identified relationships in the frequency of sociolinguistic variables , such as postvocalic ( t ) , which corresponded to the speech of the radio audiences .
Bell 's analysis of the newsreaders ' speech revealed that they spoke differently based on the intended radio audience .
Bell identified relationships in the frequency of sociolinguistic variables , such as postvocalic ( t ) , which corresponded to the speech of the radio audiences .
Bell 's analysis of the newsreaders ' speech revealed that they spoke differently based on the intended radio audience .