Doesn't record Computer Sounds.

[XRPTRON]

Describe the bug
Doesn't seem to record Computer Sounds. (system sounds, YouTube. etc. )

To Reproduce
Steps to reproduce the behavior:
Simply select both audio recording sources:

1. Microphone
2. Speaker/Headphones
   (the app doesn't seem to have select computer source on its own)
   If you uncheck Microphone and leave Speaker/Headphone, no sounds is recorded at all.

Expected behavior
Recorded Voice and computer sounds should be both recorded:

1. Microphone you speak into
2. Sound that computer system outputs , YouTube, etc.
   Naturally headphones are plugged into computer to prevent Mic picking up the sounds from speakers.

Screenshots
settings: https://mega.nz/file/YlsDBaiL#VSGEa3BqPvuzK3WoXYrM4uz-awyXbL8mV8-ivlhpAE0

Desktop (please complete the following information):

• OS: Windows 10
• RAM: 16GB
• CPU: i7 2.6GHz
• Graphic Card: RTX 2060
• Captura Version: v8.0.0

Additional context
Add any other context about the problem here like FFmpeg Log or error messages.