A question about NTSC film and audio lagging

[Spanner]

I have a NTSC film encoded MPEG file that when opened in Virtual Dub gives all the correct information :


352 x 240 23,976 fps
44100 hz 224 kbit/sec MPEG-1 Layer2.

VCDEasy loads the file up and reports no problems, but the audio lags behind. I have de-multiplexed etc in TMPGEnc and then checked it in VCD gear and all is well.

VCDeasy gives a few weird reports after authoring ( see below ), but this part " audio stream #0 has bitrate 196608 kbps (should be 224 kbps for this vcd type)" goes over my head ????


Any ideas.

[VCDxBuild.exe]
GNU VCDImager 0.7.12
initializing libvcd 0.7.12 [cygwin/i686]

this is the UNSTABLE development branch!
use only if you know what you are doing
see http://www.hvrlab.org/~hvr/vcdimager/ for more information

changed album id to `BIN01'
changed volume number to 1
changed volume count to 1
changed restriction number to 0
changing 'next volume use sequence 2' to 0
changing 'next volume use lid 2' to 0
changed volume label to `VIDEOCD'
changed publisher id to `VCDEASY_V1152'
changed application id to `CDI/CDI_VCD.APP;1'
changing 'relaxed aps' to 0
adding pbc (Selection-000/2)
adding pbc (Selection-001/2)
adding pbc (Selection-002/2)
adding pbc (Selection-003/2)
adding pbc (Selection-004/2)
adding pbc (Selection-005/2)
adding pbc (Selection-006/2)
adding pbc (Selection-007/2)
adding pbc (Selection-008/2)
adding pbc (Selection-009/2)
adding pbc (Selection-end/3)
sequence count 1
adding sequence #0, E:\SVCD\XXXBinCue\01\city01mux.mpg
strange (possibly non-compliant) user_data seen... (not a problem, usually a sign of TMPGEnc)
APS' pts seems out of order (actual pts 737.042711, last seen pts 737.084411) -- ignoring this aps
pts start offset 0.348411 (max pts = 2838.683911)
playing time 2838.335500
scanning mpeg sequence item #0 for scanpoints...
already scanned... not rescanning
audio stream #0 has bitrate 196608 kbps (should be 224 kbps for this vcd type)
pbc: psd size 408 (extended psd 968)
iso9660: highest alloced sector is 257 (using 300 as isosize)
requested entry point (id=Chapter-0001-02) at 299.841000, closest possible entry point at 299.841211
requested entry point (id=Chapter-0001-03) at 599.724000, closest possible entry point at 599.724133
requested entry point (id=Chapter-0001-04) at 899.774000, closest possible entry point at 899.773878
requested entry point (id=Chapter-0001-05) at 1200.032000, closest possible entry point at 1200.032167
requested entry point (id=Chapter-0001-06) at 1500.207000, closest possible entry point at 1500.207044
requested entry point (id=Chapter-0001-07) at 1800.298000, closest possible entry point at 1800.298500
requested entry point (id=Chapter-0001-08) at 2100.098000, closest possible entry point at 2100.098000
requested entry point (id=Chapter-0001-09) at 2399.731000, closest possible entry point at 2399.730667
requested entry point (id=Chapter-0001-10) at 2699.780000, closest possible entry point at 2699.780422
writing track 1 (ISO9660)...
writing track 2, MPEG1, FILM SIF (352x240/24fps), audio[0]: l2/44.1kHz/192kbps/stereo ...

[reboot]

Audio bitrate is 224kbps standard. 196 is not. It may work the way it is, or you could separate the audio track, resample at 224, then fix sync (see link below), then re-encode.
Audio sync fix.

[Spanner]

Audio bitrate is 224kbps standard. 196 is not. It may work the way it is, or you could separate the audio track, resample at 224, then fix sync (see link below), then re-encode.
Audio sync fix.

Virtual Dub said it was 224kps, it was VCDHard that decided it wasnt.


Anyway I cracked it in the end, I dont bother with avi files anymore and instead of using VCDHard that crash's most of the time, it is easier using Adobe Prem for all my video editing needs.

With the correct software everything works like clockwork.


By the way, none of the guides I ever tried worked when getting audio sync back within avi files tha required encoding

If you want to do a job right then use the right tools, Adobe and Wavelab are the dogs bollox in this respect

[reboot]

Good choices. I prefer Soundforge for audio tho