How to autostart my source media when I click Start recording

[Pako69]

Hi

I'm totaly new with OBS and French so excuse me for the typos :-)

I have 2 sources, one it my webcam the other is a local mp3 file.

I just want th mp3 start automatically when I click the Start recording button...

Thanks

 

[Lawrence_SoCal]

I have not come across a native ability in OBS to do the exact sequence you mention.
however
- you could use a hotkey setup and initiate multiple actions (Record and enable/turn on MP3 Media Source)
- or use OBS plugin Advanced Scene Switcher (AdvSS), which is what I do, and then having fun automating
Before the Macro option in AdvSS, what I did was set up multiple scenes
- My starting scene has a countdown timer, and Scene is also trigger start of Recording
- then I have a timed sequence before moving to next scene which has the Media Source already enabled (so MP3 file in your case would start playing as soon as Scene selected)
with new Macro options, even more possibilities, but also requires more mental effort... so in this plugin, I'd start simple by un-selecting the checkbox to 'Hide options covered by Macros' to show the other (older) Tabs which may be simpler to start with