Table 2 Explanation of investigated attributes of the processed signal along with possible related impairments
Attribute | Meaning | Possible impairment |
|---|---|---|
Speech quality | Utilitarian comparison of the speech quality w.r.t. the assumed original | Speech onset suppression, artificial reverberation, or speech spectral smearing |
Background noise attenuation | Noise attenuation | Noise level was annoying or unacceptably loud |
Residual noise naturalness | Naturalness of the residual noise | Musical noise perception |
Speech spatial sound cues | Consistency of speech spatial cues w.r.t. simultaneous visual cues | Spatial desynchronization |