Multiple Audio Channel Exporting

[Joey-Haney]

Is your feature request related to a problem? Please describe.
I have a use case where I am recording videos with OBS that have multiple audio channels. I record my voice to the first audio channel and the rest of the audio to the second channel. The intent is to maintain the audio channels but only check for silences on the first audio channel. I was hoping that the output would manipulate the video from the first channels silences but then export the video afterward with all the audio channels. Unfortunately the output is only maintaining the first audio channel.

Describe the solution you'd like
I would like to have an option to enable multiple audio channels through the GUI when exporting. However only detect silences from the first channel as is the case currently.

Describe alternatives you've considered
I looked this up to see if these options existed. I skimmed the discussion here https://stackoverflow.com/questions/37820083/ffmpeg-not-copying-all-audio-streams/54616353 to get an idea if this is a potentially reasonable request. On top of this search, the description of how the steps approach the silence detection and video manipulation seem to allow for this change.

I have tried mixing the channels and I can get similar cuts if I make the channel I do not want to detect silences in quiet compared to the voice and maintain the default background noise MID setting. Unfortunately this also removes the audio considered as background noise which I would like to keep through this multiple channel solution.

Additional context
Here is the setup I am describing in OBS:

[padvincenzo]

Hi @Joey-Haney
This is a very good feature I'd like to bring to Silence SpeedUp. I will be working on it in late February / early March.

My plan is to add options like these (for each video entry):

• Which audio streams should be exported;
• Which audio streams should be scanned to detect silences (first, second or both).