How to make sound from one laptop to another via jack 3.5?

Question

Audio

Hello!

There are two laptops. One on Mac OS, the other on Windows 10. There is a jack jack 3.5 cable. How can I output sound from one laptop to another? For example, I communicate via Skype and want to display the desired sound file for the interlocutor on one of the laptops. He is supposed to hear him. How to do this? Is it possible to? I connect the cable to two laptops and there is no reaction. No new devices appear in either input or output. When playing sounds on any of the connected laptops, there is no reaction. In general, I do not understand this. Help, please, who knows how to implement this.

Answer 1

If the laptops have separate microphone and headphone jacks, then simply connect the green output jack of one laptop to the pink mic input jack of the other. Just keep in mind that since the microphone jack is not stereo, but single-channel, only one of the stereo channels will be transmitted. (I don’t know what color the audio jacks on the Mac are marked with, and whether they are marked at all, you yourself will somehow figure it out).
But now there are more and more laptops with a combo audio stick, i.e. combined, 4-pin audio jack (as in smartphones). In this case, on both laptops, you will first have to use adapters from the combo socket to two separate ones, and then connect them as described above.
Transmitting audio content through Skype's acoustic channel is a bad idea, because Skype processes sound quite heavily - suppresses noise, removes echo, etc., leaving only speech. If he considers the sounds you added to be external noise, then he can simply cut them out. Therefore, if you have sound in the form of a file, then it would be more correct to transfer it to the interlocutor also in the form of a file (Skype has the option of transferring files, and for this you don’t even need to be online, you can transfer it for future use).