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I realize that I can use other programs to render out the audio of a video. But I'm trying to keep it all inside Blender for simplicity.

I've just tried deleting the video strip and rendering the audio strip. But that seems to be confusing Blender.

It's also taking about 30 seconds to render one second animation time when I do this.

Thanks for any help

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  • $\begingroup$ Are you setting your export type to something other than video, if there is no video stream? definitely make sure it's not trying to render to an image sequence. Also, disabling the video codec entirely and just rendering an audio stream may help. $\endgroup$ – dval Mar 12 '16 at 21:19
  • $\begingroup$ Did you use the Animation or the Audio (Mixdown) function in the Render Panel of your Properties View? $\endgroup$ – Samoth Mar 14 '16 at 10:36
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    $\begingroup$ blender.stackexchange.com/questions/31334/… $\endgroup$ – gladys Mar 14 '16 at 16:17
  • $\begingroup$ Is the audio track synchronized with the video? Also, why do you want to keep the audio in Blender without the video. That sounds a lot more complicated than working from the original source material then importing it into Blender. $\endgroup$ – SDsolar Jul 5 '17 at 23:28
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Depending on how the video is encoded, you might be able to import video as a sound strip into the VSE.

Goto Add -> Sound and when the file selection screen opens, you will have to turn off file filtering. (So you can select something more than 'sound' files.)

enter image description here

Then you can select a video file, and it will only import the sound.

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