Audio clips in a Post Production Session

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bartbee
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May 12, 06 3:49 AM (permalink)

Audio clips in a Post Production Session

Hi,

I was working on a sound design /music mix for an imported video today and encountered a serious problem. I opened up an OMF session and all the audio dropped into the designated tracks and onto the correct position of the timeline to sync correctly with the video which I also imported.

I then composed a music sequence using only the midi functions in Sonar. I changed the tempo of the session from 100 bpm to 111bpm so that the music would finish in the correct spot of the video.

When I did this the audio clips changed position relative to absolute time and no longer synced up with the video. These clips were dialogue tracks so it was important that they stay in the right spot.

I managed to solve my problem by using the "bounce to clips" function on each individual track/clip in the session, and dragged their start points to zero on the timeline. This kept the audio in sync with the video regardless of the sequencer tempo.

I tried to find a locking function to lock the audio clips to absolute time so that they would not move around but couldn't see anything in the manual. Does a function like this exist?

I do a lot of post work and this is the first time I have come across this.

I did find a "snap to" option that allows users to nominate absolute time, I tried that and the audio still moved.

Bouncing all the audio in a session seems like a long way of managing audio that needs to stay synced to video. Is there another way??

Cheers,

Bart
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3 Replies Related Threads

    Infinite5ths
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    RE: Audio clips in a Post Production Session May 12, 06 7:29 AM (permalink)
    Sir, you have discovered Sonar's infamous lack of "Lock to SMPTE". If you search for "lock SMPTE" on this forum, you will see that this feature has been discussed and requested ad nauseum. Unfortunately, it STILL has not been implemented into Sonar. People have been requesting it since Sonar 3 (and perhaps before that?).


    This is one of the reasons that Sonar's post-production abilities are still considered by some to be incomplete. Tarsier in particular has outlined some of Sonar's shortcomings for video/film sound and scoring work. I actually went out and bought Sony Vegas 6 in part to have access to a better post-production system. I also needed video editing capabilities, so Vegas solved several problems at once. It can lock clips to a specific SMPTE [or "real-world", as I call it] time.


    You should submit an OFFICIAL FEATURE REQUEST. It's not likely to be added immediately...but more and more folks are asking for this feature as time goes by.

    post edited by Infinite5ths - May 12, 06 7:38 AM

    Mike
    MichaelDanchi.com
    IPM Productions
    Sonar 8PE, Project 5 v2.5, Rapture, Dimension Pro, Z3TA+, RME FF400 + Presonus DigiMax FS
    #2
    rchristiejr
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    RE: Audio clips in a Post Production Session May 12, 06 1:36 PM (permalink)
    Thanks for this thread. It was really helpful.

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    bartbee
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    RE: Audio clips in a Post Production Session May 12, 06 9:32 PM (permalink)
    Thanks for the reply Infinite5ths. I suspected this might be a shortcoming with the program as I had a good look in the manual etc about it.

    I will definetly put in a feature request for this as it is a crucial part of managing a post for video session.

    Sonar should have an option that allows clips to either sync up to their original OMF destinations, (remain locked ) or to be moved around to follow the bars and beats time line of the sequencer, as it does now.

    Pretty basic stuff you would think.

    Bart.
    #4
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