[MEncoder-users] audio sync

listman listman at nerdherdclan.com
Tue Jan 30 04:35:01 CET 2007


> listman wrote:
>
>>>On Sat, 27 Jan 2007 19:04:09 -0800 (PST)
>>>"listman" <listman at nerdherdclan.com> wrote:
>>>
>>>
>>>
>>>>Is there any way to correct the sync on audio correctly?
>>>>
>>>>
>>>Yes.
>>>
>>>
>>Is there a works on all dvd's fix or is it a per dvd fix.
>>I have read through the faq's and the docs and tried everything I have
>>been able to find that has to do with audio sync. I have tried different
>>codec and everything on syriana and have not been able to sync the audio.
>>The movie sucks but it has the worst sync I have found so I use it for
>> all
>>my testing. Here is what I'm using to rip it
>>
>>mencoder -mc 0 -noskip -aid 128 -oac lavc -ovc lavc -of mpeg -mpegopts
>>format=dvd -vf scale=720:480,harddup -srate 48000 -af lavcresample=48000
>>-lavcopts
>>vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:keyint=18:aspect=16/9:
>>acodec=ac3:abitrate=192 -ofps 30000/1001 -o MOVIENAME.mpg dvd://1
>>
>>What could I change to help the sync, does 2 pass do anything for audio
>> sync?
>>
>>
> you are calling for disasters with that script: -mc 0 -noskip disables
> mencoder's
> synchronization code.
> Best results can usually be obtained without them and adding -demuxer
> lavf;
> btw, I always recommend to use -mpegopts format=dvd:tsaf.
> 2-pass mode doesn't affect audio sync

I started with hardup and without -mc 0 and -noskip, it didn't sync added
-mc 0 still didn't sync so I added -noskip as mentioned in the docs.
saving vobs for the files I cant get to sync and will keep going through
the docs.
thanks for the input...




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