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| erzane |
| Posted: Jan 16 2015, 11:33 AM |
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Member
Group: Members
Posts: 12
Member No.: 38538
Joined: 12-January 15
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Hi,
I am trying to append 11 files
but on the junction of files 9 and 10 there is a small noise
If I append only file 9 and 10, it's ok, no noise, the junction is smooth
I need your help to resolve my problem pls
thanks |
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| Abrazo |
| Posted: Jan 16 2015, 02:58 PM |
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Advanced Member
Group: Members
Posts: 775
Member No.: 28995
Joined: 5-November 10
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I see no immediate reason why there is a difference. Normally the result should be the same in the two cases.
Does it make a difference when re-encoding the audio, instead of a direct copy ?
Mostly, the best method when working with several pieces of video - with the goal to later join them together - is to NOT compress the audio in these different parts. Just compress the audio at the very end, while you do the append. This is because the audio (and also the video) is compressed and stored into little boxes, called "chunks". The length of these audio-chunks is not equal to those of the video-chunks, and so when you cut video, chances are high that an audio chunk gets cut and becomes damaged. |
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| erzane |
| Posted: Jan 16 2015, 03:11 PM |
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Member
Group: Members
Posts: 12
Member No.: 38538
Joined: 12-January 15
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Hi,
what do you mean by ''reencoding audio'' ?
All my cutted files must be interleaved to 50ms, if not, I have an audio/video shift during the play.
Can I do it directley after cutting it or must I encode it first ?
exemple for direct interleaving:
video>direct stream copy
audio>interleaving
SAVE (1pass)
in place of encoding first
video>direct stream copy
audio>full processing mode
SAVE (1pass)
and then interleaving
video>direct stream copy
audio>interleaving
SAVE (1pass)
would I have the same result ?
is it ''reencoding'' as you asked ?
thanks |
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