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| jazzzy786 |
| Posted: Aug 10 2005, 05:54 PM |
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Advanced Member
Group: Members
Posts: 105
Member No.: 12723
Joined: 14-November 04
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I used avisynth to convert a mp4 to xvid using virtualdub using the following script but alas no sound. How do i extract the audio from my mp4 video (or a wmv for that matter)
Directshowsource("c:\myfile.wmv", fps = 25) |
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| jazzzy786 |
| Posted: Aug 11 2005, 12:32 PM |
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Advanced Member
Group: Members
Posts: 105
Member No.: 12723
Joined: 14-November 04
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I've found a solution for MP4s
Using YAMB and MP4BOX it is possible to extract the video and audio streams from a MP4. Then the audio needs to be converted to WAV using besweet or similar before importing into virtualdub.
Winavi is still the only solution I know for converting WMVs with audio. Unfortunately the program is unstable and produces large output files.
Does anybody know any other way to extract the audio from a WMV? |
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| jazzzy786 |
| Posted: Aug 11 2005, 12:36 PM |
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Advanced Member
Group: Members
Posts: 105
Member No.: 12723
Joined: 14-November 04
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I've found a solution for MP4s
Using YAMB and MP4BOX it is possible to extract the video and audio streams from a MP4. Then the audio needs to be converted to WAV using besweet or similar before importing into virtualdub.
Winavi is still the only solution I know for converting WMVs with audio. Unfortunately the program is unstable and produces large output files.
Does anybody know any other way to extract the audio from a WMV? |
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| stephanV |
| Posted: Aug 11 2005, 12:44 PM |
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Spam killer ;)
Group: Moderators
Posts: 4348
Member No.: 8917
Joined: 18-February 04
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if you can hear the sound in WMP, you should also get the sound via directshowsource.
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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| thebandnerd |
| Posted: Aug 11 2005, 01:41 PM |
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Unregistered
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You can convert the audio of a WMV to wav using TMPGEnc (available at http://www.tmpgenc.net/ ):
1. Drag and drop the WMV into TMPGEnc
2. File -> Output to file -> WAVE file
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| jazzzy786 |
| Posted: Aug 12 2005, 12:47 AM |
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Advanced Member
Group: Members
Posts: 105
Member No.: 12723
Joined: 14-November 04
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thanks thebandnerd I have been using tmpgenc for a while now and hadn't noticed this little feature. Just goes to show there's always something new to learn.  |
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