A family member told me he doesn't like to hear most pop singers because one can hear them taking deep breaths after longer tirades and that is a sign they can't sing properly. He mentioned Andrea Bocelli as a good example: no matter how long he sings 'in one go', no matter how much his voice climbs up or down, no matter how long he sustains a certain sound, you will never hear him run out of breath and take a noisy inspiration.
His expression was that lyric singers 'don't breathe while singing' (although obviously, he meant they don't breathe noticeably or noisily) and pop singers do. I know, there's a lot of generalisation here, but these were his words. Although I must admit that I also find it a bit annoying to be listening to a great voice and then there's a near gasp for air before the voice blows all out again.
So, is this family member correct in his statement that 'proper singing' means one shouldn't take those noisy deep breaths while singing?
Secondly, what is the name of the technique lyric singers use to perform 'without breathing'?