Hi all,
Need a help with audio related stuff. I'm using mono microphone on GoPro and wanted to feed the another unused Right channel with intercom speaker out. So to reduce the voltage to feed it into the GoPro on unused channel I used the below schematic. However, there is a little bit sound getting into the microphone channel even though no wire is attached to it except the common GND. If I push the volume up it will defeat my purpose.
So I need help to fix this I don't know how. I want to keep this separate.
GoPro can also accept the line in level signal and there is so such issue if feed the speaker out directly. However then I need to amplify the mic using battery to use on its channel. To try that I also bought MAX4466 but can't get it to work, searched the whole lot internet.
Any help is greatly appreciated.
Need a help with audio related stuff. I'm using mono microphone on GoPro and wanted to feed the another unused Right channel with intercom speaker out. So to reduce the voltage to feed it into the GoPro on unused channel I used the below schematic. However, there is a little bit sound getting into the microphone channel even though no wire is attached to it except the common GND. If I push the volume up it will defeat my purpose.
So I need help to fix this I don't know how. I want to keep this separate.
GoPro can also accept the line in level signal and there is so such issue if feed the speaker out directly. However then I need to amplify the mic using battery to use on its channel. To try that I also bought MAX4466 but can't get it to work, searched the whole lot internet.
Any help is greatly appreciated.
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