Why not just play the audio on a computer speaker to a microphone and maybe a generic audio preamp board ( to get the levels right ) to the destination computer.
Could have the speaker and microphone in a small cardboard box to avoid any audio interference ....
Once you get the speaker, the mic, the cardboard box, the "finding the proper input/output level", the EQ, the "WIIIiiiIIIIiiiIIIiiiiscreeeeech" sounds...
I don't think that device is much more complicated. Also, working with it is way way simpler. Drop the files, press play.
Why all that complication?
Why not just play the audio on a computer speaker to a microphone and maybe a generic audio preamp board ( to get the levels right ) to the destination computer.
Could have the speaker and microphone in a small cardboard box to avoid any audio interference ....
Once you get the speaker, the mic, the cardboard box, the "finding the proper input/output level", the EQ, the "WIIIiiiIIIIiiiIIIiiiiscreeeeech" sounds...
I don't think that device is much more complicated. Also, working with it is way way simpler. Drop the files, press play.