Pure delay effects on speech quality in telecommunications Export

@article{citeulike:3065696, abstract = {The effect of transmission delay on speech quality in telecommunications is described, with human factors such as conversational mode and the talker's knowledge of the cause of delay taken into account. Objective quality estimation methods for delay effects are proposed, and these methods are applied in an actual communications network. In connection with delay perception in a telephone conversation, the assumption was verified that a talker expects a particular response time from a partner, and that delay that is outside this expectation time window is noticed. Taking this information into account, a subjective conversational experiment is controlled by six kinds of tasks by varying the temporal characteristics. Thus, a subjective assessment of delay effects is obtained by laboratory tests in relation to the detectability threshold, opinion rating, and conversational efficiency. Objective quality measures for each test were defined as a linear combination of temporal parameters that correspond closely to subjective qualities}, author = {Kitawaki, N. and Itoh, K.}, booktitle = {Selected Areas in Communications, IEEE Journal on}, citeulike-article-id = {3065696}, citeulike-linkout-0 = {http://dx.doi.org/10.1109/49.81952}, citeulike-linkout-1 = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=81952}, doi = {10.1109/49.81952}, journal = {Selected Areas in Communications, IEEE Journal on}, keywords = {delays, intelligibility, speech}, number = {4}, pages = {586--593}, posted-at = {2008-07-31 15:58:03}, priority = {2}, title = {Pure delay effects on speech quality in telecommunications}, url = {http://dx.doi.org/10.1109/49.81952}, volume = {9}, year = {1991} }

TY - JOUR ID - citeulike:3065696 L3 - citeulike-article-id:3065696 N2 - The effect of transmission delay on speech quality in telecommunications is described, with human factors such as conversational mode and the talker's knowledge of the cause of delay taken into account. Objective quality estimation methods for delay effects are proposed, and these methods are applied in an actual communications network. In connection with delay perception in a telephone conversation, the assumption was verified that a talker expects a particular response time from a partner, and that delay that is outside this expectation time window is noticed. Taking this information into account, a subjective conversational experiment is controlled by six kinds of tasks by varying the temporal characteristics. Thus, a subjective assessment of delay effects is obtained by laboratory tests in relation to the detectability threshold, opinion rating, and conversational efficiency. Objective quality measures for each test were defined as a linear combination of temporal parameters that correspond closely to subjective qualities IS - 4 JF - Selected Areas in Communications, IEEE Journal on EP - 593 TI - Pure delay effects on speech quality in telecommunications VL - 9 T2 - Selected Areas in Communications, IEEE Journal on SP - 586 KW - delays KW - intelligibility KW - speech AU - Kitawaki, N AU - Itoh, K PY - 1991/// UR - http://dx.doi.org/10.1109/49.81952 ER -