I’m looking for a software that is able to record multiple audio sources at once in realtime. I have three sound sources (two sound cards, and one loopback source) I want to record from and mix them together at a later point. As such a stereomix or similar approach that mixes the sources before recording is not an option. I want to keep all sources separate for as long as possible, and preferably synchronized as well.
Is there anything that is able to do this? Adobe Soundbooth (at least in the version I own) only allows mixing them in the beginning, and Audacity only supports recording one source at a time as well (multiple instances have the recording disabled).