Because there is no single best process for delivering all types of streaming audio and video, this chapter shows you various tips on how to get the most out of your RealProducer recording session.
This chapter discusses how to:
A number of factors can influence how much of your system's resources are used during a recording session. Use these tips to get the best performance possible.
By disabling the input source window, the output source window, and the audio level meter during live recording, you can lower the amount of processing power needed to record. Consequently, you can increase the frame rate of your recorded file and decrease the time it takes to record your clip.
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RealProducer has features that allow you to more easily use RealProducer and increase efficiency while recording your media clips.
If you have a real-time capture station, you can use it to capture and compress directly into RealMedia format. The output of an audio or video device can be recorded by RealProducer to a RealMedia file instead of a live broadcast.
This process eliminates the need to create and store intermediate audio or video files, which are very large and can take considerable disk space. It is also the fastest way to capture content like breaking news clips when time-to-post is important.
RealProducer supports drag-and-drop recording. This feature allows you to quickly convert an input audio or video file into RealMedia.
This opens a new session with path and file name information entered appropriately.
This section describes how to successfully create quality sound for RealMedia clips. It gives you overall audio tips, describes audio sampling rates, and shows you how to use the audio level meter.
Follow these tips in order to get the best quality from your different audio sources.
This allows you to use a sound editor to adjust the amplitude of your signal to maximize the available dynamic range. If you do not adjust the signal, the resulting RealMedia file may sound flat.
The following sampling rates for your source audio are supported for this version of the product. For fuller sound, use the higher sampling rates and a better audio codec.
While you record RealMedia clips, you can monitor the Audio Level to be sure you are encoding the optimal dynamic range. Green indicates a normal reading. Red warns that you are close to an over-modulated input. The best sound quality will occur when the top red bar is often lit but the clipping indicator (the red light above the meter) is never lit.
Clear the clipping indicator during recording by clicking on it. This allows you to track if audio clipping is occurring without watching the audio level constantly.
This section describes how to successfully create quality video for RealMedia clips. Follow these tips in order to get the best quality from the different types of video sources.
In order to get high quality output, your video source should meet the following requirements organized by video type.
However, if you captured an AVI file on the same machine as RealProducer, there is typically no problem.
RealProducer supports any size image from any video source, but it will automatically crop the height and width to multiples of 4. The most common video image sizes are 160 x 120, 176 x 144 pixels, or 320 x 240 pixels.
Live capture image size is controlled through Set Video Format under the Options menu, and is dependent upon the video capture hardware installed.
RealProducer's cropping feature allows you to record any portion of a video image that you wish. By cropping an image, you can reduce the overall bit rate of your recorded clip while removing unnecessary image space.
The smallest size that you can crop an image to is 32 x 32.
The Image Cropping window displays a sample image from the session input. Notice the crop lines around part of the image. These lines show the portion of the image that will be recorded.
