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-TiLT- · 8th March 2011, 02:57

FLAC isn't well supported for direct editing. There are tools that support cut & join of DD and DTS (and their extended derivates or PCM) like eac3to and delaycut.

Though eac3to works with timecodes and delaycut works with milliseconds, it is quite easy to calculate the values with an excel sheet.

The reason for those tools not to use framenumbers is, audio does not know the framerate to of a video it may correspond to.

If you are working in a 25fps environment, your framelength is 40ms, for 23,976 its 41,708375ms, etc. calculate 1000/framerate.

When cutting, keep in mind, most compressed audio formats have a "framelength", too. For DD its 32ms, so you wont be able to cut in the middle of an audio frame. This will most likely introduce small delays when joining and can add up to visible desync.

8th March 2011, 02:57	#4 \| Link
-TiLT- Registered User Join Date: Mar 2003 Location: Germany Posts: 43	FLAC isn't well supported for direct editing. There are tools that support cut & join of DD and DTS (and their extended derivates or PCM) like eac3to and delaycut. Though eac3to works with timecodes and delaycut works with milliseconds, it is quite easy to calculate the values with an excel sheet. The reason for those tools not to use framenumbers is, audio does not know the framerate to of a video it may correspond to. If you are working in a 25fps environment, your framelength is 40ms, for 23,976 its 41,708375ms, etc. calculate 1000/framerate. When cutting, keep in mind, most compressed audio formats have a "framelength", too. For DD its 32ms, so you wont be able to cut in the middle of an audio frame. This will most likely introduce small delays when joining and can add up to visible desync. Last edited by -TiLT-; 8th March 2011 at 03:00.