Why doesn’t xbox allow my own voice to be recorded in clips?

I don’t think you can fix it. The reason you can hear them is because the chat is in the game and mixed with the game’s audio (unless your squad is in xbox live party). Your voice is input and doesn’t come out of your speaker, thus not being recorded.
The same thing applies to your squad mates. If one of them records a clip, your voice will be heard in the clip but the person recording won’t.

When will you guys add voices to Xbox clips. I want to record YouTube videos with my voice. But I can’t so I have to use my computer.

I’m not the best at computers so the sounds are delayed. That’s why you should add voices to clips not just for me but for other people

I'm not sure if it can record your own voice either... I've seen other people record game clips and you can hear other party members speaking as they come out through the game, but not the person recording it and also speaking. Hopefully someone knows
of a way to record your voice as well on the clip. Best of luck!

Unfortunately the voice (be it your own or party chat) does not record when you use the XBox to record clips. Not sure if you are editing the clips afterwards before you upload them to YouTube or not, but if you are then maybe you have the option of also
recording voice commentary to add to the video before hand with other software? Just a thought if you are doing any editing afterwards.

Good luck.

If you are talking about the built in clip recording on the Xbox One, it does not record voice.