system
Given the following post, respond as if you're commenting on Reddit:
human
If my voice sounds different to me than it does in a recording, then how am I able to accurately match my singing voice to the key of a song?

If other people hear my voice differently than I do when I speak, shouldn't my singing sound out of key to them if it sounds in key to me?
gpt
Your voice sounds different due to hearing it through your skull and bones rather than , like everyone else, solely through your mouth. 

None of this, though, changes the NOTES you produce. It changes the character of the sound, but not the actual frequencies comprising the sounds. It's like if you were to put a blanket over a stereo - it sounds different, but everything would still be in the same key.