Need someone to add voice to a video in a realistic way

Hey
I'm looking for someone to add a voice to a crowded video ( sound gotta fit with the the crowd and be realistic...)
I hope my request is understandable..

are you just looking for like background noise of people talking ? you could probably found some free audio of this.

You request is not totally clear. Here are 2 scenarios:
1. there is already background crowd of people talking, and you want to add a particular additional voice

2. You want to add a crowded background and a special voice to that

Whichever one, we sure can do it with realistic human voice.

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