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SIGMOS (Signal Mean Opinion Score)
A machine-estimated speech-quality score that predicts how good audio would sound to human listeners.
SIGMOS is a non-intrusive, machine-estimated speech-quality metric that predicts the Mean Opinion Score human listeners would give a sample, without needing a clean reference recording or a listening panel. It lets teams measure enhancement quality automatically and at scale. It sits alongside metrics like PESQ, STOI, and MOS in evaluating speech systems.
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