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Problem: Random FPS, Audio?
Im having two problems, one is that when I open video with 7.0 for some reason its usually slow and the FPS is just randomy changing, but it barely ever stays at normal FPS and when it does only just for a few seconds. My second problem is that I cannot seem to get any audio. Ill import a song, nothing, Ill import a music video, nothing. Do I need to change some settings for this FPS problem? Do I need a certain Audio Codec? Does anyone know the answers to these problems? Thank you very much!
Edward. -
3 Replies
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RAM Preview.
It sounds like you’re just using the regular preview (space bar), which doesn’t play audio, and feeds frames directly into the playback buffer as fast as it can. Depending on the complexity of the video and effects you’ve got going, the frame rate will vary. Use the Time Controls panel to monitor it.
RAM Preview plays audio, and it renders and loads the frames into memory before sending them to the playback buffer, meaning that it will play back at a consistent frame rate. Use the zero key on the keypad to play a RAM preview.
There’s also an audio-only preview, which is the period key on the keypad.
Look in the Help files for more information on the playback optinos and how to use the Time controls panel.
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Thank You this Helps a ton, another question though When I use the 0 to preview, it takes forever to render, and usually only gets 200 and some frames out of 7000 or so thats in the stuff im working with, and stops with that. Increase the ram-usage of AE somewhere or what?
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Yes, you quite simply are running out of memory. If you don’t have at least 2 GB, get more, but be aware that there are OS limitations (both Mac and Windows) that prevent individual applications from addressing more than about 2-3 GB of memory. You can also tweak the memory settings in AE’s prefs, though the default values are usually pretty good, and increasing them may not help much. You can enable the disk cache, but it’s slow and doesn’t always help.
And yes, it’s going to take a while, because AE has to render each frame first. You can change some settings to help with this. In the comp window, lower the resolution and/or set an area of interest. In the Time Controls palette you can lower the framerate used for RAM previews. In the timeline you can set the work area to just the area you want to preview. You can also turn off any layers that aren’t necessary for you to gauge your work.
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