Q: Can't hear system sound through speakers in quicktime movie file

Hi there,

I recorded a screen recording.

I was recording it with an aggregate device for the microphone.

The aggregate device was (an external headphone bluetooth + soundflower ch2 )

The problem is if I play the file, the sound that was recorded from the system was muted in the file unless I am hearing it from the external headphone bluetooth.

I can't hear anything from the speaker or any other headphone.

It is weird :/

How am I going to play the file if I don't have this headphone?

Please help

thanks