This is really an addition to my previous blog about high consonants and it is just a little check for you to experiment with. I have found that ‘placing’ my consonants higher – and I know the articulatory muscles are really no different but it feels higher- I don’t expel so much air. So place your hand over your mouth as you play with the consonants and then see how much air comes out. It works with many consonants but particularly H.
I think it something to do with the pharyngeal space creating a background vowel shape that uses a higher soft palate but I can only experiment and try things out. Most of the time when I sing I don’t even think about it if I am honest but when I have a difficult leap or a high tessitura where the words need to be clear, THAT is when my understanding of consonant creation becomes vital!