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tasheal2018-08-13 18:26:19
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tasheal, 2018-08-13 18:26:19

What audio tags are there like DTMF?

What are the easiest audio tags to generate today - sounds that would store a small code (5-50) of numbers for a few seconds of the tag?

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Alexander Skusnov, 2018-08-14
@AlexSku

amplitude-phase modulation

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