D5110/D5111/D7110 User Manual25same time. Quality:Auto: The quality and bitrate will be adjusted automatically according to the framerate.Fixed Quality: Select the value of quality among Medium, Good, Delicate andExcellent.Fixed Bitrate: Set the bitrate of MPEG-4 image transmission for a line. You can selectone value among 64Kbps, 128Kbps, 256Kbps, 384Kbps, 512Kbps, 768Kbps, 1Mbps,1.5 Mbps, 2 Mbps, 3 Mbps, 4 Mbps, 5 Mbps, and 6 Mbps.Note: Concerning how to select the suitable image quality for Fixed Quality or FixedBitrate, please refer to the CHAPTER 9. APPENDIX / A. Frame-rate & Bitrate Table. IP interval: It’s the ratio of i-frame & p-frame. You can select one among 1, 5, 10, 15, 30,60, and 120. The ratio smaller, the streaming smoother.Note: The IP interval value means a ratio of “ P-frame / I-frame “ in a certain section offrame sequences. The ratio lower, the live view clear. However, live view will lag if thebandwidth isn’t big enough. In this situation, you have to choose another bigger IP intervalvalue to solve the problem.Note: If Video clip format of General Menu, which is for recording compression, is chosenMPEG-4, the IP interval option will appear “Auto” automatically and can’t select. The limitis for avoiding damaging the recording quality of 5 seconds temporary-saved videorecorded on FTP server.6.2.4 MJPEG Viewer authentication: