One reason I use DT-770's is for their sound isolation. However this sometimes works against me when I need to be hearing my own voice in addition to whatever is normally coming in through the headphones.
I would like to feed back my microphone input into my headphones with as little latency as possible.
Audio Source (Laptop or other) ->
Audio Source (Laptop or other) +
What is the bare minimum hardware I would need to introduce monitoring into a setup consisting of headphones and an audio source?
Would a single mixer do the job? Or would I need something to amplify the microphone before it goes into the mixer?