pystoi

pystoi is a Python library that computes the Short Term Objective Intelligibility (STOI) measure, a metric highly correlated with the subjective intelligibility of degraded speech signals. It is an intrusive measure, requiring both clean and degraded speech inputs. It serves as an objective alternative for evaluating the effect of non-linear processing like noise reduction or binary masking on speech intelligibility. The current version is 0.4.1, and its development appears to be in maintenance mode.