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I’m trying to create a video using PowerPoint. I have completed the files and added the audio (.wav format). I use AuthorStream software to convert the files to a podcast or youtube like format. The files uploads just fine but once it starts playing the song stops before even advancing to the next slide. I made sure I entered the number of files in the powerpoint audio section to make it play for the entire presentation and it worked great until I uploaded the files to AuthorStream. Any suggestions? Or do you know of another software that can convert presentation files to a video format that I can upload into my articles?
(Note: I've printed and read all of the EHOW articles on Powerpoint and creating videos. Thanks!)
All suggestions appreciated. Thanks in advance!!
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Ron Auerbach
Joined: Oct 11, 2007
Total Posts: 26
11318 Points
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I don't use this myself, but I've encountered this same problem with others. One issue could be the file sizes. When they're pretty big, either individually or together as one, you could be running into memory issues. In this case, the system may only be able to stream a portion and then it runs out of memory for the rest. And many do separate out the video, audio, and picture components. This is why you can have your pictures changing but the audio and video don't. Or the audio plays just fine but the video plays catch up.
My suggestion is to make your audio files smaller. This can be done by using a different file type--say MP3 instead of WAV. Or by reducing the bits depth and channels. For example, going from 128k down to 56k. Or from 2 channel stereo to 1 channel mono. I've used 16k mono for many audio files and they sound good enough. It all depends on the quality of your original recording. The better your original, the lower you can reduce it and still maintain quality.
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cashokay
Joined: Jul 13, 2008
Total Posts: 3
253 Points
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Camtasia Studio by Techsmith has quite a feww recording and production capabilities. One that may indirectly help you is its ability to record your PC's screen simultaneously with what your sound card is playing. You can record or any part of your screen.
Once your presentation is captured, Camtasia will produce mp3, flash and many other formats. The program is a little pricey at about $300 but is one of the best available.
If you really want to get fancy you can add your overlay an audio track over what was recorded. There are many more functions, too many to mention here, but I know it will do what you want.
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