Audio/Video sync control

  • JReykdal

    JReykdal - 2013-12-20

    We're using Ingex to record from old 1" tapes but the analogue to digital conversion introduces around 6 frame delay to the video (processed seperately as the 1" is 3ch and analogue to sdi is 2ch).

    Is there a way to delay the audio in capture to compensate for this?



  • John Fletcher

    John Fletcher - 2014-01-02

    You could modify the IngexShm::pSecondaryAudio() method and subtract 6 from value of frame.

    Or, more elegantly, you could add an optional audio delay to the capture program (dvs_sdi). Maybe I will do that when I have a moment; are you using DVS or Blackmagic?

  • JReykdal

    JReykdal - 2014-01-02

    We're using DVS.

  • John Fletcher

    John Fletcher - 2014-01-03

    OK, I have added an option to dvs_sdi
    -adelay frames

    Last edit: John Fletcher 2014-01-03
  • JReykdal

    JReykdal - 2014-01-03


    I'll test it on monday.



Log in to post a comment.

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:

JavaScript is required for this form.

No, thanks