Latest post Mon, Feb 12 2018 1:10 AM by Turnstile. 10 replies.
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  • Sat, Feb 10 2018 5:27 PM

    • Turnstile
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    How do I extend an audio clip past its original parameters?

    Situation: So I've added some reverb to a gunshot sound to make it "ring out" more.

                     The original sound effect is only 2 seconds long.

     

    Problem: Because I added reverb to it, the echo lasts well beyond this 2 second window and is cut off abruptly. 

                   After some web searching and consulting my avid textbook, I was unsuccessful in finding out how to extend this audio clip  enough to capture the reverb I've added.

     

    Any help would be greatly appreciated.

    - Ben

  • Sat, Feb 10 2018 7:03 PM In reply to

    • Joachim Claus
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    Re: How do I extend an audio clip past its original parameters?

    I would seperate audio from video, and work on audio first. Save your current reverb. Then take the original sound and apply audio effect "Time Compression/expansion", and expand the current audio fileto the same length as the reverb effect langth.

    When this composition works as desired, continue with the video part. Apply the timewarp effect to expand the video to the sm lngth as the new audio.

    Finally, put both parts together on a timeline, and then make an export - and re-impodt the exported clip.

    May be this helps.

    Joachim

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  • Sat, Feb 10 2018 7:27 PM In reply to

    Re: How do I extend an audio clip past its original parameters?

    Turnstile:

    Any help would be greatly appreciated.

    - Ben

     

    There's probably better ways to do it, but I would Add an RTAS-enabled track below the original, copy the last bit of dry sound onto the RTAS track using the reverb setting of choice.

    Make sure you have plenty of time available past that moment on the RTAS track.

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  • Sat, Feb 10 2018 7:32 PM In reply to

    • smrpix
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    Re: How do I extend an audio clip past its original parameters?

    For a two second sound effect, I would probably just put it in a sequence clean, isolate it and do an audio mixdown adding a few seconds of blank tail.  Cut in the new media and add the effect to that.

  • Sun, Feb 11 2018 12:07 AM In reply to

    • jwrl
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    Re: How do I extend an audio clip past its original parameters?

    smrpix:
    For a two second sound effect, I would probably just put it in a sequence clean, isolate it and do an audio mixdown adding a few seconds of blank tail.
    Me too!  In fact it's what I invariably do with any audio that has a hard cut off that I need to add reverb to.  If there's significant atmos present, fade the end of the audio over a few frames before doing the mixdown.  With an effect this short it's unlikely that this will even be necessary though.

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  • Sun, Feb 11 2018 8:39 AM In reply to

    • Turnstile
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    Re: How do I extend an audio clip past its original parameters?

    This sounds like the most logical solution and what I was looking for, it makes perfect sense to me.

    Though in the "audio mixdown" interface I don't see an option to create a blank tail.

    The parameters of the audio length are set.

     

     

  • Sun, Feb 11 2018 9:55 AM In reply to

    Re: How do I extend an audio clip past its original parameters?

    Cut the sound effect into a new sequence. Add the effect a second time so you now have the effect twice. Set the audio gain of the second clip to infinitiy (mute) then mixdown. You now have a clip with the effect followed by silence of the same duration.

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  • Sun, Feb 11 2018 2:09 PM In reply to

    • smrpix
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    Re: How do I extend an audio clip past its original parameters?

    Not sure I described it properly.  Set the in and out points like this to include filler in the mixdown:

     

     

  • Sun, Feb 11 2018 3:47 PM In reply to

    Re: How do I extend an audio clip past its original parameters?

     and this is the RTAS version. 

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  • Sun, Feb 11 2018 10:48 PM In reply to

    Re: How do I extend an audio clip past its original parameters?

    One way. With the required clip into a new timeline use Add Edit to cut the clip 1 frame from the end.
    Insert edit X seconds of filler at the add edit point to extend the timeline out beyond where it is needed.
    Go back to the clip and trim it 1 frame forward so the clip is back to the original length.
    Mark in at the start of the timeline and Mark Out at the end of the timeline.
    Make an audio mixdown using the Mark In to Mark out to set the mixdown's duration.

    FWIW I would name and keep this timeline so I could remake the lengthend clip with a different Reverb decay rate if required later.

  • Mon, Feb 12 2018 1:10 AM In reply to

    • Turnstile
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    Re: How do I extend an audio clip past its original parameters?

    Pat Horridge:

    Cut the sound effect into a new sequence. Add the effect a second time so you now have the effect twice. Set the audio gain of the second clip to infinitiy (mute) then mixdown. You now have a clip with the effect followed by silence of the same duration.

    This worked great!

     

    Thanks for your suggestion.

    - Ben

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