I think the best explanation comes from singing. Say "crayon" and "offer". "Crayon" is a brighter, more nasally sound, whereas 'offer' is generally further ba

I think the best explanation comes from singing. Say "crayon" and "offer". "Crayon" is a brighter, more nasally sound, whereas 'offer' is generally further back in the vocal cavity (referred to as a darker tone). I don't necessarily like "through the nose" but I think this is what it is describing.