I’m ripping my hair our here. I’ve read every single guide available concerning the conversion of PAL .avi’s to NTSC .avi’s (including those on this site) and am still facing problems. I’m sorry to bother you all with such a mundane, and probably over-asked question, but I want to see what I’m doing wrong.
Here are the programs I am using for converting avis.
- CCE 2.70
- BeSweet Beta + GUI (to convert audio to NTSC)
- Sonic Audio Encoder (to convert WAV to AC3)
- DVD Lab Pro
Here are the steps I take:
Assuming the avi is a typical 25 fps, 16:9 asset, here is my AviSynth script:
If the audio in the AVI is an MP3, I extract it to a 16bit 48000 WAV using Audio Converter Pro. This gives me a DVD quality WAV, but still at the PAL length.
I then load the WAV into BeSweet and do a WAV to WAV conversion with the Re-Encode PAL (25 FPS)–>NTSC (23.976) option ticked.
Then I take that WAV and load it into Sonic and encode an AC3 using 2-Channel Interleaved Input, Ratio 2/0, and Bitrate of 224.
If the Audio is already an AC3, I demux the AC3 using VirtualDubMod, load the demuxed AC3 into BeSweet, and do the above conversion only changing AC3 to AC3 (instead of WAV to WAV).
Then do the same transcoding process in Sonic.
Now, to the video.
I load my AviSynth script into CCE 2.70. I have the following options ticked in the program (per a guide I followed http://forum.videohelp.com/viewtopic.php?t=222898):
Timecode Setting: 0=>01:00:00:00
Mode: Mpeg2 with the For DVD box ticked.
Multipass VBR selected
Bitrate: Changes as per the Bitrate Calculator for the average bitrate. Minimum is 0, Maximum is 9,570
Pulldown: 2:3 box is ticked
Aspect Ratio: 16:9
So, I load my AviSynth script into that template, converting from PAL to NTSC.
I thought all would be well since I’m converting the audio to 23.976 as well as the video.
When I load the assets into DVD Lab Pro, I get no errors. I compile the VOBS, make an ISO, check it out on my computer (no problems) and then go to play it on my Set Top box.
The move runs fine for awhile, but then it starts to stutter and pause, like the disc is scratched. I noticed on my stereo (which has a Dolby decoder) that when the video pauses, it switches to PCM then back to Dolby.
Sometimes I get nothing but loud screeching sounds, distorted audio, or clipping on loud parts.
So, I deduced that maybe the problem is with my audio.
What am I doing wrong? How can I convert PAL audio to NTSC audio for both original MP3 audio or AC3 audio?
Am I screwing something up along the way?
I’m sorry for the redundant question, but you guys seem to be the most knowlegable encoders on the block and I could really use your help.