Pronunciation editor Josh Guenter helps with a question about the difference between the sounds heard in the words age and vision -- and the difference in the sound of chin and show.
The sound /ʤ/ (as in age) is actually a compound sound. It is a sequence of the sound /d/ (as in dog) followed by /ʒ/ (as in vision). To pronounce /ʤ/, you say /d/ followed by /ʒ/.
The same is true of the sound /tʃ / as in chin. It is a sequence of the sound /t/ (as in top) followed by /ʃ / (as in show).