The signal quality analysis system recognizes artefacts in the signal and delays the decision of the
algorithm in case of bad signal quality. Bad signal quality (caused e.g. by movement) is reported by
voice prompt "Movement detected" after the defined timeout of 15 seconds.
3. REFERENCES:
[Databank1] http://physionet.org/physiobank/database/cudb/
[Databank2] http://physionet.org/physiobank/database/nstdb/
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