ffdshow audio processor export audio file

[ocmtime]

How to use ffd audio processing in vdub and export the results ?
I can use ffdshow realtime audio processing when playing a file in media player classic but how do I apply and export the audio with that ffdshow processing

[Midzuki]

How to use ffd audio processing in vdub and export the results ?
I can use ffdshow realtime audio processing when playing a file in media player classic but how do I apply and export the audio with that ffdshow processing

The "normal" VirtualDub requires ACM codecs.
There used to be an ff_acm.acm file in the ancient versions of ffdshow... but it was dropped in the most recent ones :-/
You could of course «downgrade» ffdshow temporarily,
but I don't know if that would be worth the hassle...

As a workaround, my suggestion is: use an Avisynth script which "calls" ffdshow's audio processor through a DirectShow graph (.GRF file) generated with GraphStudioNext.

[hello_hello]

There's a VirtualDub DirectShow Input plugin. I couldn't find a link for it on it's own, but it's included in this plugins pack.
https://codecpack.co/download/VirtualDub-Plugin-Pack.html
Here's the version I have. DShowInputDriver.zip (https://files.videohelp.com/u/210984/DShowInputDriver.zip)

Put it in the VirtualDub plugins folder. Make sure the appropriate ffdshow audio codec is enabled. Open a video in VirtualDub.
Select the VirtualDub Audio/Audio From Other File menu. In the popup window, select "DirectShow Input Driver" as the file type before opening the audio. You can select the same file you opened originally. The audio doesn't have to be a different file.

https://i.postimg.cc/zbFsHytc/vdub.jpg (https://postimg.cc/zbFsHytc)

I think that's all you need to do. ffdshow should decode the audio and you can use it's filters.