divx with ac3 audio came out to be scracthy?

[scotty00]

ok,
so like i download TNG that has ac3. so i use virtual dub and direct stream the audio out as an wav. then i use tmgenc to merge the .avi and the wav to a svcd. at the finish product. the sound always scratches? kinda like a skitting sound. anyone know how i fix this?

could it it be when i convert the files i am doing lots of things at onces that is causing it? cause i was download 2 things and surfing the net at the same time when i was coverting.

[DivXExpert]

When you direct stream copy the AC3, you are copying the AC3 and saving it as a wav, but internaly it is still an AC3. SVCD only supports wav. So you have to convert the AC3 to a wav, not just copy and rename the file extention to .wav.

[scotty00]

so what should i do? just rename it as .wav? cause after the direct stream it is at a .wav file.

[bugster]

so what should i do? just rename it as .wav? cause after the direct stream it is at a .wav file.

rename the files as movie.ac3 and convert it to wav with Headac3he (tools section). You may need to run it through ac3fix.exe first. (google!)

[scotty00]

accually i found out how to work that

[bugster]

i download it ac3fix 0.3 and it doesn't work on win xp?, it just open the dos promt and closes it.

Thats because its not a windows app but a dos one. Open a command window and run it from the command line. type:

c:>ac3fix audio_in.ac3 audio_out.ac3

and let it run.

[scotty00]

at headac3he. which destineation format i should use? wav? or ac3-wav? and what bit? 16 or 32bit or etc?

[bugster]

Either select wav and use this as the audio source when you encode or select mp2, encode video only and multiplex with the mp2 from headac3he

[scotty00]

so in your opinion, which option is the best?

[bugster]

I use wav.

[scotty00]

hey bugster.. thanks for your help. audio came out great.

I just encounter a few of the TNG files that are in "SFM" maybe those are the group that release the files. but when i open the file on virtualdub it say that the audio is in "improper VBR audio encode" is that mean that audio is not in AC3? and i need to use another program to direct stream the audio out?

[bugster]

hey bugster.. thanks for your help. audio came out great.

I just encounter a few of the TNG files that are in "SFM" maybe those are the group that release the files. but when i open the file on virtualdub it say that the audio is in "improper VBR audio encode" is that mean that audio is not in AC3? and i need to use another program to direct stream the audio out?

Yes. In that case the audio is not AC3 as you say. Just do a search on this site or in the forum for something like "vbr audio" and you will find LOADS of info on how to handle this.