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| Kategorietest mit absoluter Bewertung der Qualität, ACR-Kategorietest (A method of evaluating transmitted voice quality where subjects rate (from 1 to 5) short groups of unrelated sentences under controlled conditions) | |||
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| Kategorietest mit absoluter Bewertung der Qualität, ACR-Kategorietest (A method of evaluating transmitted voice quality where subjects rate (from 1 to 5) short groups of unrelated sentences under controlled conditions) | |||