can i convert a 44.1kHz ac3 to 48kHz?

[cramberri]

aaaalrite, heres what i got

i am using mkv files, and i am trying 2 extract the audio so i can put it into dvdlab pro and compile my dvd there

i had another topic where i tried 2 figure out how 2 extract the audio properly and convert it to wav format

so i thought i figured it out! i used mkextractgui to extract the aac audio streams, then i used rarewares.orgs aacdecdrop program to convert it to wav! then i used besweet to convert it 2 ac3

i thought i was home freee!! but then...i inserted the ac3 files into dvdlab pro and it says its the wrong frequency, 44.1kHz instead of 48kHz. boooo. dvdlab pro says the file is 44.1kHz, 448kbps, dolby 5.1, but only about 12 minutes long when it is in fact about 24 (i played it fine for the entire time in winamp) i tried to just go ahead n burn the dvd n c if my dvd player would play it, but during the compile stage and error came up saying it had to be 48 or 96kHz.

i've been searching the forums and the net like crazy, and i just can't find a way to convert my ac3 file into 48kHz! or even convert my wav to an 48kHz ac3 instead of a 44.1kHz!

any help would be greatly appreciated! i think im losing sum hairs here =P hahah~ thank you!

[Baldrick]

you can use besweet, just change to 48khz. or use belight.

[mats.hogberg]

ssrc is what I, and for instance svcd2dvd uses for sample rate conversion. I don't think there's a way to do this other than with the audio in wav format.

/Mats

[midnightsun]

Make sure you don't have "downsample to 44.1kHz" (or something to that effect) checked in aacdecdrop. Since the aac file is already 48kHz it looks like you accidentally downsampled along the way. So if you still have the aac file, reconvert it to 6-ch WAV (I'm assuming this aac file is 6-ch), then convert the 6-ch WAV to 6-ch ac3. Again, make sure you don't downsample to 44.1kHz every time you convert.

If (I don't think this is the case but you never know) aacdecdrop only outputs 44.1kHz WAV, then use besweet or nero burning rom to get the wav out of the aac.

[Sakuya]

Will the 6 channel surround effect from the AAC still be in effect in the resulted AC3? I'm just reading around so sorry for reviving an old thread.

[lordsmurf]

I prefer to convert the AC3 to WAV, do the sampling change in good audio software like SoundForge, save the WAV, and then let an AC3 software convert back to AC3 (Besweet would work here too, with AC3ENC.DLL installed).