VCD to DVD standard

[hp78]

I would like to make this VCD compatible with the DVD standard with low or none quality loss:

Video: 982 MB 1150 Kbps 25.0 fps 352*288 (4:3) MPEG 1 (VCD)
Audio: 191 MB 224 Kbps 44100 Hz 2 channels Mpeg-1 audio Layer 2

Will I loose audio quality if I convert the audio stream from 44100 to 48000 Hz?

Will I loose video quality if I fix the video GOP?

Are this steps needed for universal DVD player compatibility?

Thanks

[Cole]

If you use a program like TMPGEnc DVD Author, it will do all the conversions for you without any loss of quality.

Just load the MPEG1 files into it when authoring the DVD.

[mats.hogberg]

Yes, you will lose audio quality. (Noticeable? Prolly not)
No, you won't lose video quality.
Yes, those steps are needed (if the GOP is wrong for DVD).
Like Cole says, try your source with TMPGEnc DVD Author. It will fix the audio sampling fq if that's all that's needed to make the source DVD compliant.

/Mats

[Cole]

Yes, you will lose audio quality. (Noticeable? Prolly not)

In my experience Mats. it is the 44100 hz audio that already spoiled the soundtrack as it sounds a bit 'tinny'.

When on the odd occasion I make a VCD (or xVCD in this case) I alwasy set the audio to 48000htz to stop this happening.

When I have put VCDs on to DVD using TMPGEnc DVD Author (at 44100htz), I don't notice any degredation of the audio, as it is not that good in the first place.

[mats.hogberg]

Well, that's why I added that the quality drop probably wouldn't be noticed. But hey, 44.1 kHz tinny? Haven't we lived with (and loved) 44.1 kHz audio for 30 years (audio CD)? But resampling sure adds to the degradation. Anyhow, I agree - I've always gone for 48 kHz audio for both VCD and SVCD in those days, just to make the transition to DVD easier.

/Mats

[Cole]

It is possible that the tinny sound (only with VCDs I hasten to add, I don't have the problem with any other audio medium) is a result of the VCD encoding process? I have seen this complaint elsewhere on this forum.

[mats.hogberg]

Might be so - mpg1 layer 2 @224 kbps compression on top of 44.1 sample rate may be too much.

/Mats

[hp78]

Please make this clear to me:

Will the audio quality be degraded (someone wrote here that it will not)?

Can I burn a DVD compliant movie with a 44100Hz MP2 audio stream?

Thanks

[canadateck]

Please make this clear to me:

Will the audio quality be degraded?

Thanks

No....Or you wont Notice

Please make this clear to me:


Can I burn a DVD compliant movie with a 44100Hz MP2 audio stream?

Thanks

No

[mats.hogberg]

Please make this clear to me:

Will the audio quality be degraded?

Thanks

No....Or you wont Notice

I beg to differ: Yes....But you wont Notice

/Mats

[canadateck]

Please make this clear to me:

Will the audio quality be degraded?

Thanks

No....Or you wont Notice

I beg to differ: Yes....But you wont Notice

/Mats

I quess that is what I meant...

[hp78]

I have successfully figured out my Video/Audio problems thanks to you.