Jseal – It may better to think of noise as “interference” rather than something related to sound. On an analogue line, this interference with the data (signal) does sound like noise. On a digital line, a bit is a bit, so thinking of noise as interference is more useful. The root problem remains unchanged, which is first how to discriminate between the signal (data) and the noise (interference) and also, when approaching the bandwidth limits of the channel, that the noise can elbow the signal aside.

It doesn’t matter what your messaging system is – they all have these problems.

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