I have an audio signal coming out from an iPhone which I would like to record in iPad using its mic input.
I have tried this with simple resistor divider (and TRS-TRRS connectors), but it seems to worsen the sound quality.
How can I do this without worsening the sound quality ? Are there any off the shelf components I could use to achieve this ?
I came across this adaptor, but it says 50dB loss, I guess my sound quality would drop, which is not great for my application.