Resampling audio to match resampled video

[27am_dot_com]

I have a 4 minute video segment screen captured and recorded with Camtasia. To be able to add it to my other videos in Virtual Dub, I had to resample the video frame rate from the original 8fps to 15fps. However, due to how Virtual Dub artifically re-creates the frames per second, now my audio is off.

Is there a way to save the audio to match the video?

Namely, I have audio in PCM, 1411kps, 16 bit and it was matched with a 8fps video. Now it needs to match the 15 fps. BUt timings are off.

[Poplar]

First of all, you don't "resample" video, you change frame rate, aka FPS. In most cases, it doesn't cause A/V synch problems, depending on how FPS is changed.

If AV synch is off, you need to stretch the audio, not resample. Most audio editors can do it.

[SDeC]

Poplar is wrong. You cannot stretch audio without re-sampling it. The only way to alter playback time without resampling is to pad the audio data with silence or cut existing samples. But neither situation applies to your case, because you are working with a new video frame rate.

I am assuming that your new video program is not really "twice as fast" as the original; rather, your new video file now has redundant information.

SyncView might work for you. The WAV Export Tool does both trimming/padding and stretching; but you will need to separate the audio and video files.

Regards

- SD