PhonoPaperis one of those apps that is useless but so coolheaded that it feel like magic from the time to come when you ’re using them : It rake printed sound waves , turning them back into medicine , messages , or any other form of sound as you move your iPhone or iPad across the paper . Watch — and listen :
To habituate it you only need a computer and a program calledVirtual ANSto mark the sound waves into paper .
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