How can i playback and record simultaneously using Corona SDK for iOS devices? I am trying to build something similar to karaoke. It would be helpful if someone pointed me to any ready API or repository on GitHub or could help me solve the problem.
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Sorry, but you cannot do that in realtime…
And to do without realtime would involve using some APIs that Corona do not expose to do sound editing, Corona support for sound is still VERY basic, probably because Android sound support is a little unstable now too…
To do that you would need Corona Enterprise, and lots of native SDK fiddling, and I am not sure if you can do it in Android without some heavy work…