Pal to NTSC audio conversion

[dragonkeeper]

my question is this most of the guides i've seen call for u to use Bsweet which ruins the audio, and if u can't tell the differnce buy a hearing aid. And i've tried several other programs but recently rediscoverd Goldwave a friend of mine uses it for screed music because he said that it chages speed and doesn't effect pitch to a certain degree as long as ur within 7% or do to the original.
So i took a 5 minute audio file and tried it a slowed it down 4.096 which should change audio from 25fps to 23.976 fps. and their was very little change it was very hard for me to dicern without lisen to both at same time.
My question is has any tried using goldwave to do this and is my calculation correct:to slow it down 4.096%, been out of school a long time now the, grey matterisn't what it used to b.
thx in advance.

[Floydscruffy]

there is a guide around there called
-How to convert avi(Divx/Xvid/Ac3) to wav using Goldwave

which in the has an optional section on format conversion from PAL to NTSC and NTCS to PAL.

and you are set

[thor300]

I totally agree that besweet is an unacceptable way to convert Pal to NTSC and vice versa. But what you can do is to use the timewarp in goldwave and set the new length to the length of your encoded video, or encode a temporary file in besweet (with the -ota switch) and use goldwave to get the exact playing time of the new audio file, then load the WAV into goldwave, timewarp it to the length you found in the previous step, save the new wav, and then its ok to encode to AC3 with besweet.

[Jynks]

As long as you do not have drifts in your audio sync I found that using goldwave timewarp function works fine for converting the audio to a diffrent frame rate.

Load the movie file you have converted and jump to end, note the time display (ed:- 01:25:05:675) and adjust in in goldwave to the same setting.

[FulciLives]

I have done countless PAL DVD to NTSC DVD-R conversion and have always used either BeSweet with the BeSweet GUI or sometimes AC3Machine.

I don't understand why so many people don't like BeSweet for this?

Most PAL DVD sources are converted from 24fps to 25fps with a pitch shift. So any pitch shift BeSweet does is really a good thing since it is simply doing the reverse of what was done to begin with.

- John "FulciLives" Coleman

[thor300]

I dont think PAL movies are made that way. I heard about that some movies (like lord of the rings) are shortened down a little, but i guess they use methods like goldwaves timewarp for the audio. All movies have some kind of music, i guess a very musical person would be very pissed off if he bought a DVD and then find that the violins are totally out of tune?

[FulciLives]

I dont think PAL movies are made that way. I heard about that some movies (like lord of the rings) are shortened down a little, but i guess they use methods like goldwaves timewarp for the audio. All movies have some kind of music, i guess a very musical person would be very pissed off if he bought a DVD and then find that the violins are totally out of tune?

There is a user on here (I think it's either Adam or mabe BJ_M) who has a PAL DVD of PINK FLOYD THE WALL and says that compared to the NTSC DVD the pitch is WAY off on the PAL DVD.

LOTR (I think it was TWO TOWERS but it might have been FELLOWSHIP OF THE RING) attempted to account for the pitch shift from 24fps to 25fps and everyone that had that PAL DVD release said it sounded like shit.

One reason to use BeSweet is that coupled with AC3Machine you can keep 5.1 AC-3 sound when doing the PAL to NTSC conversion.

- John "FulciLives" Coleman

[thor300]

To bad theres no good way to do this, i still stick to converting the video framerate and keeping the audio. Its obvious that the goldwave method gives more quality loss than the besweet method, and that the video convertFPS method degrades the picture a little, but i refuse to have pitched sound.
That Pink Floyd example is horrible, the music is more important than the video of a concert for some people, much better to have a little less video quality, keep the playing time and with clean tones.
I will still use Avisynths ConvertFPS!

[thor300]

Update: Tested some high quality audio sources in Goldwave today, both methods for keeping pitch are horrible. Even the TFF method sucked bigtime, it gives a plastic box-sound. I advice anyone who cares about audio to convert the video with avisynth instead, or use besweet with change in pitch. As i mentioned in my previous post i will continue to use ConvertFPS for video to keep original audio, now that i know how horrible goldwave does this job i will recommend everyone to do it, or change the audio pitch if video quality is very important.
Sorry i thought goldwave was an alternative, i take that back, change of pitch is most likely better every time. Again, the best is still ConvertFPS in my opinion.