Latest post Tue, Jan 30 2018 4:43 PM by Biggreen73. 5 replies.
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  • Mon, Jan 29 2018 8:57 PM

    • Biggreen73
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    Airspeed 5000 Max Clip Length

    Always been told that max clip length is just over 12hours.

    User said though that they keep having hard records stopping at 6hours 28mins.

    Record specs are DNxHD145 with 16audio channels of 48kHz/16bit

    Anyone know what the max clip length would be at these specs? 

  • Tue, Jan 30 2018 3:56 PM In reply to

    • Marianna
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    Re: Airspeed 5000 Max Clip Length

    Let me check and find out

    Marianna

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  • Tue, Jan 30 2018 4:04 PM In reply to

    • Marianna
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    Re: Airspeed 5000 Max Clip Length

    Got the scoop from Anthony our top notch Airspeed guy...

    "  Its normal that the math linked to the audio limits the length to 6 hours, this is as deigned as expected.  If the audio is not 48bit then you can have a clip that is 12 hours long."

    HTH

    Marianna

    Director of Online Communities and Forums/Customer Advocate [view my complete system specs]

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  • Tue, Jan 30 2018 4:15 PM In reply to

    • Biggreen73
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    Re: Airspeed 5000 Max Clip Length

    Just to clarify, it is the audio sample rate of 48kHz that is restricting the clip length and not the number of audio tracks?

    So it could do a 12hour clip with 16audio tracks if it was 44.1kHz?

  • Tue, Jan 30 2018 4:24 PM In reply to

    • Marianna
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    Re: Airspeed 5000 Max Clip Length

    biggreen.....

    It is not universal, for example:

    http://resources.avid.com/SupportFiles/attach/README_AirSpeed_5000_v2.9.5.pdf

    AirSpeed 5000 has a record duration limit of four hours when using DNxHD 185/220. This is due to a file size limitation of the system.  It’s not hard to imagine that the “lesser” 145 has a higher limitation, but a limitation as well.

    It also helps to know specific versions to go through specific limitations of each version.

    I can check on the "12hour clip with 16audio tracks if it was 44.1kHz?" but my suspicion is yes.

    Marianna

    Director of Online Communities and Forums/Customer Advocate [view my complete system specs]

    marianna.montague@avid.com

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  • Tue, Jan 30 2018 4:43 PM In reply to

    • Biggreen73
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    Re: Airspeed 5000 Max Clip Length

    Thank you

    Just trying to get a definitive answer to the users as they are asking as they too were told its a 12hour record limit in the past.

    They are not going to change their specs of DNxHD145 48kHz/16bit.

    But, if they can increase the clip length by reducing the number of audio tracks from 16 to a lower number it would be good to let them know.

     

    They are running Airspeed 5000 v.2.9.3.46225

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