1. A computer-implemented, non-intrusive signal quality assessment method, including the steps of: receiving an audio signal; determining, using a processor, parameters (E n e ,T n ,f n ) representing frames of the signal; extracting, using the processor, a collection of per-frame feature vectors (φ(n)) representing structural information of selected frames (Ω) of said audio signal from said parameters; determining, using the processor, a global feature set (ψ) over said collection of feature vectors (φ(n)) from predetermined statistical moments of selected feature vector components (φ 1} φ 2 ,. .. φ n ); and predicting, using the processor, a signal quality measure (Q) from said global feature set.