If you are experiencing problems with playback performance such as performances skipping or re-buffering in the middle of a stream, check the following. Upgrade your player to the latest version of Windows Media Player (WMP for Macintosh). The latest version of Windows Media Player drastically reduces the buffering time between tracks and re-buffering during playback. Check the amount of RAM in your computer.

If the video plays back on your computer without problems then your best option is to re-encode the video and choose different video and audio bit-rates. See the FAQ on how to stop movies jerking.

This is usually to do with the speed of the system used for encoding. Older and those machines with low RAM will have trouble encoding video and will often produce video that falls out of sync. The power of the playback machine is also a factor. The larger the viewable video area, the more resources required for seemless playback. You will need to weigh up the average system of your users with the size of the video that you provide, or look to offer multiple sizes.

This appears every now and then due to regionfree mode or at playback of an NTSC movie on a PAL TV-set or viceversa. Change region and/or TV-format.

There have been numerous reports of "lip sync" problems, where the audio lags slightly behind the video, and even reports of the audio coming before the video. Perception of a sync problem is highly subjective--some people are bothered by it while others can't discern it at all.

The synchronization result of video and audio is highly depend on the computer performance. Please quit all other programs including any background jobs during conversion. Sometimes, the streaming audio in flash movie will cause the out of sync problem. To get the best result, we suggest to change the streaming sound to event sound, and disable the "Audio Streaming" setting in the Publish Setting Dialog Box when you export flash to swf.

This is generally not an issue with our service, but rather your internet connection and/or system. To test the speed of your internet connection, please click on the following link: http://www.bandwidthplace.com/speedtest/. Fill in the appropriate information and click on the 'Start' button in the middle of the page. After this test completes, a bold number will appear at the top of the new page.

Your system needs the most recent drivers and software. Download and install the latest version from the updates page then run the hardware tune-up utility. If the source is a NTSC source , "Drop frame mode" must be checked in the "Advanced MPEG Properties" page to avoid a lip sync loss.

The impact is not noticeable on a broadband connection - only on dial-up - when streaming audio or video files are used AND when the media is not on the first couple of pages. The reason for this is the initial creation of a NXTbook on the computer screen is the content frame and several initial pages. Adding multi-media to this process can effect the overall "creation" time of the NXTbook. Streaming media is not activated until the page itself is displayed.

This is a by-product of the compression technology used, and will cease after a period of uninterrupted playback.

You can usually recover and begin broadcasting by refreshing your browser or closing your browser and opening it again. These stalls should be rare but they will happen when Internet congestion prevents video delivery for an extended period of time.

No, you can't. As the audio and video is converted within 2 different phases, it is impossible to sync audio and video because the interaction between these 2 phases cannot sync to each other. However, we'll try to solve this problem in future release.

It is quite possible your phone requires different settings with what we offered or you set. Please get to know more about what proper settings for frame rate, as well as some others your phone can support. If the Advance button is disabled, after you click Audio tab and please click Volume button in Sound Recording panel and then you will see a pop-up window, and choose Properties in Options menu and then please check Stereo Mix in the list.

In 99% of all cases, this is caused by Nero's MP4 splitter (NDparser.ax) interfering. Most users have a working version of it, and then you usually never notice it since it just works (you won't get Haali's tray icon though). However, for some, seemingly random, users it's broken and doesn't provide either video or audio output. The solution to this problem is to unregister it, after verifying that it is indeed the culprit. This is most easily done using the CCCP Insurgent.