Audio & Video out of sync from same source

[evadecaptcha]

I'm using an elgato capture to capture nes gameplay and streaming to Twitch. If I just record there doesn't seem to be an issue, but when streaming it, it is out of sync with the video. The audio and video are both coming from the nes (via elgato), and all information I've been able to find about fixing audio sync issues relate to having video from a different source than the audio. Additionally, it has been brought to my attention that the audio is only playing from one speaker if you watch from Twitch.

My twitch channel is here, so you can hear the nature of the sync issues - https://www.twitch.tv/evadecaptcha
Please let me know what further information is needed.

 

[in3v1table]

I have the same issues streaming with my SNES. Only it starts off fine but gradually gets more and more off sync as time progresses. I have fixed this issues on my PS4 by disabling timestamps but it did not work for my SNES. If I come across a fix I'll be sure ot come back and update my post.

I attached my log files in case this helps.