conversion experts, test your knowledge

[dave_c]

first i extracted the audio (ac3) from a pal avi using goldwave and converted it to a wav at a frequency of 44100 hz. then i use bbsweet to convert it from pal audio to ntsc audio (29.97)

then i've converted a pal avi fps to ntsc avi fps using avifrate (25 to 29.97).

using tmpgenc, i converted the avi to mpg svcd, while the conversion is working for video; when i preview it, no audio comes out. why?

also, i'm concerned about the fps; according to tmpgenc, the fps is 23.976 (29.97 internally). will that be a problem when viewing on my dvd player?

also, when i click on "settings" while it's encoding, the encode mode says "3:2 pulldown when playback. will that also be a problem with my dvd player?

another thing, tmpgenc, by default, enables inverse telecine when converting this particular pal avi to mpeg. i disabled it because i don't have a progressive scan dvd and TV. did i make the right choice?

finally, does mpeg precision in tmpgenc really make a significant difference? that is, will i see a HUGE difference in quality between high precision and low precision?

[bugster]

first i extracted the audio (ac3) from a pal avi using goldwave and converted it to a wav at a frequency of 44100 hz. then i use bbsweet to convert it from pal audio to ntsc audio (29.97)

What is your destination format. 44.1 is fine for (S)VCD, you need 48k for DVD

then i've converted a pal avi fps to ntsc avi fps using avifrate (25 to 29.97).

You should have changed it to 23.976fps

using tmpgenc, i converted the avi to mpg svcd, while the conversion is working for video; when i preview it, no audio comes out. why?

TmpGenc doesn't preview the audio, encoding is not realtime, previewed audio would sound VERRRRRRRY strange.

also, i'm concerned about the fps; according to tmpgenc, the fps is 23.976 (29.97 internally). will that be a problem when viewing on my dvd player?

That is correct if you set the aviframe rate to 23.976fps (see above)

also, when i click on "settings" while it's encoding, the encode mode says "3:2 pulldown when playback. will that also be a problem with my dvd player?

See above.

another thing, tmpgenc, by default, enables inverse telecine when converting this particular pal avi to mpeg. i disabled it because i don't have a progressive scan dvd and TV. did i make the right choice?

Not sure on this one.

finally, does mpeg precision in tmpgenc really make a significant difference? that is, will i see a HUGE difference in quality between high precision and low precision?

Between fastest and slowest, difference is quite large. Use Normal or High. Highest is much slower than high but not the improvement is minimal.