I'm developing an application which records both audio and video in a file. Since audio volume is too low for a reason, I want to amplify the audio in DirectShow. How can I do that?
I don't want to use ffdshow Audio Processor. I may use SampleGrabber but don't know how. Please guide me.
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http://blog.monogram.sk/janos/2008/06/05/beginners-guide-how-to-make-a-directshow-filter-vc-project/ might be interesting, iirc. graphstudio also contains some code for this,...
ReClock also does have a volume control iirc.