Capturing some VHS with USB3HDCAP, Virtualdub and MagicYUV, I get a file that plays OK intially, but if I move around the file, the audio pitch drops. This happens in VLC, MPC-HC and in Virtualdub.
Chain is AG1970 (NR switch to edit mode, TBC on) -> TBC-1000 -> USB3HDCAP by SVideo -> Virtualdub -> MagicYUV 422. Attached file was extracted in Vdub2 with direct stream copy.
What do you see going wrong?
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 10 of 10
Thread
-
-
--
"a lot of people are better dead" - prisoner KSC2-303 -
The colors are off scale but that's mostly source related, I would remove the TBC1000 just to see the difference, sometimes external TBC's slightly change luma and chroma levels even though they are not suppose to, but electronic components drift over time and that mandatory ADC-DAC conversion inside the TBC could screw things up.
-
Yes, I have tried the others, other than UT Codec. I appreciate your lack of faith in the codec, as codec names usually correspond to their performance and usability, but according to popular web site "VideoHelp," it's been around for some time: https://www.videohelp.com/software/MagicYUV/version-history
Does anything in the example file give insight into why the audio pitch would drop on playback? -
-
I had not noticed that, I though it was a freeway traffic noise.
How does it play directly to TV from the VCR?Last edited by dellsam34; 17th Nov 2020 at 13:09.
-
VirtualDub has the option to resample the audio when it's having sync problems. That can cause a change in pitch. See Capture -> Timing...
-
Thanks, jagabo, for that. That page presents many ways for me to mess things up, I bet.
I had audio preview on when I made this capture. I read a few moments ago that I should absolutely NOT have audio preview on. Another of those Things Everyone Knows that I wasn't aware of. I've just made three test recordings that I'll dig into to see whether the tweaks you suggested, and/or turning audio preview off, has given me something more sane. -
jagabo, I'm not sure whether it was one of the settings you pointed to, or a reboot and turning off audio preview, but I'm back to getting decent captures. Thank you for your assistance.
-
Yes, turning off the audio preview is critical with VirtualDub. It causes frame drops which in turn causes the sync options to kick in.
Similar Threads
-
Audio drops out part with through HDMI capture
By nick1977 in forum CapturingReplies: 10Last Post: 10th Apr 2020, 08:52 -
Software that can precisely adjust audio length without changing pitch?
By bizzybody in forum AudioReplies: 5Last Post: 7th Oct 2017, 18:45 -
MagicYuv Codec with avisynth and Megui?
By Patriek in forum Video ConversionReplies: 2Last Post: 6th Oct 2017, 00:01 -
PAL to 24fps, best way to slow it down and fix audio pitch
By 4ie2 in forum Newbie / General discussionsReplies: 12Last Post: 4th Feb 2017, 13:22 -
GOM & VLC no longer change audio pitch when changing speed...
By PleaseSendHelp in forum Software PlayingReplies: 4Last Post: 11th Jan 2017, 17:22