User manual VIEWCAST NIAGARA 7500

[. . . ] Niagara 7500 User Guide Document Number: 40-03258-01A Date: 02. 10. 2009 Niagara 2120 Release: 1. 0 Document Number: 40-03260-02-A Date: December 2010 ViewCast i © 2010 ViewCast Corporation. ViewCast, Niagara SCX, ViewCast logo, SimulStream, Niagara, GoStream, Niagara logo, and Osprey are trademarks or registered trademarks of ViewCast Corporation or its subsidiaries. Microsoft, Windows XP, Windows, Windows Media, and Silverlight are trademarks or registered trademarks of Microsoft Corporation QuickTime, iPhone, iPad, and iPod are trademarks or registered trademarks of Apple Inc. Adobe and Flash are trademarks or registered trademarks of Adobe Systems Inc. [. . . ] Video Filter Settings Note: Click the Restore button to the right of the filter to reset the settings to the default. Options include: None ­ Performs no de-interlacing of any kind. Bob0 ­ Applies inverse telecine de-interlacing to all telecine video. ­ Applies motion adaptive de-interlacing to all video that is not telecine. ­ Switches dynamically between the two modes as the content changes. Bob1 ­ Drops the redundant fields and reassembles the video in a 24 fps progressive format. Advanced ­ Is an algorithm for de-interlacing pure video (non-telecine) content. It detects which portions of the image are still and which portions are in motion then applies different processing to each scenario. Figure 71. De-Interlace settings 54 ViewCast Niagara 7500 User Guide Note: Telecine and inverse telecine only apply to NTSC video. The system disables Bob0 and Bob1 choices when you select either PAL or SECAM as the video standard. Click Submit. ViewCast 55 Advanced Operations Audio tab Figure 72. In the Source field, select an audio source from the drop-down list: AES Input 1 (Osprey-700 HD 1) AES Input 2 (Osprey-700 HD 1) AES Input 3 (Osprey-700 HD 1) AES Input 4 (Osprey-700 HD 1) SDI Input 1 (Osprey-700 HD 1) SDI Input 2 (Osprey-700 HD 1) SDI Input 3 (Osprey-700 HD 1) SDI Input 4 (Osprey-700 HD 1) IMPORTANT!The audio input must match the connectors on the back of the Niagara 7500 and your audio source. 2. Click Submit. 56 ViewCast Niagara 7500 User Guide Adobe Flash Dynamic Streaming Output tab Figure 73. Adobe Flash Dynamic Streaming Output tab To configure output settings: 1. Note: Because the Niagara 7500 is a single-channel encoder, you can only connect and stream one audio and video source at any given time. However, you can encode the same audio and video at multiple data rates and multiple formats to provide the best user experience for different viewing audiences. The bandwidth is cumulative so you must be careful not to exceed your network capability. If this field is blank, click the default folder link to populate the field automatically. See Connecting an external storage device for instructions on saving video files to a USB device. ViewCast strongly recommends you do not alter the default directory setting unless you fully understand the risk of saving your files to a directory not located on ViewCast 57 Advanced Operations drive D. If you save your files to another drive on the Niagara 7500, the system could delete the files when you use the Restore to Niagara 7500 Factory Defaults feature. [. . . ] B-frames are similar to P-frames, except they can use motion prediction from future frames as well. This value can lead to significantly better efficiency in terms of BQuantFactor BQuantOffset ChromaOffset Level MaxBFramesBetweenNonBFrames 130 ViewCast Niagara 7500 User Guide Setting compression ratio. NoiseReduction Explanation This value performs adaptive pseudo-dead zone noise reduction, estimates film noise based on the value set and attempts to remove the noise by dropping small details before quantization. (100 to 1000 for de-noising) This value performs Trellis quantization to increase efficiency. [. . . ]