Can't hear myself from iPhone's internal speaker with using its Apple Music Sing feature?

Hello,

In iPhone 11 Pro Max's iOS v18.7.1's Music app, does singing with Apple Music Sing enabled supposed to hear myself sing at all like a real karoke machine? I don't hear myself from iPhone. This is just with iPhone. No ATV (4K gen. 1 is too old to support Sing from Apple's fine like prints :(.).