High pitched whine in audio of SVCDs

[jubjub]

It's not very bad, but can get annoying. The whine is not there in the WAV that is ripped from the VOB's. Only when I encode will the whine occur. I had been using tmpgenc, but then tried toolame as the audio encoder. Same with both. Could it be a hardware issue? I have a low quality sound card.

Any ideas?

[Fatboy]

Sorry no advice ?

I have same problems with vcd's with same software.

I use a 1024 sound card which sould be upto the job.

Any settings to sort this or change encoder.

Help ?

[adam]

This is a known problem with TMPGenc's frequency converter. Even if you use toolame as an external encoder it still uses TMPGenc to convert the frequency from 48kHz to 44100kHz. You need to use an external frequency converter in TMPGenc, ssrc.exe is a good choice. Or you can do the conversion in dvd2avi when you first process your vobs, although this is a very slow method.

[jubjub]

Humm, that's odd. I've been leaving mine at 48kHz. I just tried one at 44.1 and it's not nearly as bad.

I will give ssrc a try. I assume it goes in the same window where I selected toolame, just in the 'sample frequency convertor' box.

Thanks for the help

[adam]

Well assuming you were playing these (s)vcds on your dvd player, your player might not be able to handle 48kHZ. After all if goes outside of the standards.

Yes, thats where you designate ssrc as the frequency converter.

[el-Dia]

I also get the sound noicy, with a "metallic" distortion/tone.

After experimenting on small chapters of a movie I found this to be the way to get best quality on the audio part:

-After encoding the movie demultiplex with TMPGEnc tools.
-Encode the original .wav with toolame (std options)
-Multiplex the original video part with the new audio track.

I haven't converted the original .wav down to 44.1kHz, just left it at 48kHz. Yes I know that it doesn't make a standard file. But it works perfect on my Yamaha s510 wich normally plays the first few seconds of every track with the sound pitched up...

What I'm still having problem with is, when I cut the mpeg2 f.ex. at 40 min. I get 30 seconds extra of video with no sound.
This happens with all ntsc dvd's I've test ripped. It doesn't matter if I use the ForceFilm option in DVD2AVI, use Inverse Telecine in TMPGEnc or just leave the mpeg2 in 29.97fps.
I've tried BBMpg but the results were much worse..

Hope this helps in some way...

Regards,
el-Dia

[jubjub]

Anyone have a link for ssrc? Can't seem to find it in a search

I found it. Nevermind. Hope it works

<font size=-1>[ This Message was edited by: jubjub on 2001-11-21 17:32:18 ]</font>

[JumboTech]

I don't know about ssrc but you could do a search for SCMPX which is one that I've used. The "metallic" sound is 48k audio for sure.

Regards

Al