VCD's and Audio Stutter

EArrigotti wrote on 1/31/2002, 11:22 AM

In a recent thread about the updated MPEG-1 encoder, someone mentioned that they were getting audio stutter with the old MPEG-1 encoder. The SONICEP replied that he was not able to reproduce the stutter.

I have run into this stutter with VCD's and SVCD's. Both were rendered using the unaltered templates of the new MC MPEG encoder and well as the TMPGEncoder.

First off, Kudos on the upgraded MC encoder. It produced much better results in my opinion.

The audio stutter occured in the same place of two separate projects: During the ending credits. So, let's explore this phenomenon. During high movement and a wide range of colors and mixed sounds, the video/audio plays back flawlessly; however, when I have a black background, and white text that fades in from nothing , it makes my audio stutter. Could it be the fact that I am going from no video information to some video information? Or...Could it be that I am at both ends of the visual spectrum with nothing in between (i.e. black to white?)

The source MPEG files play smoothly from the computer. This leads me to believe that my DVD player, a Pioneer, is having trouble handling these situtations. The question is: How could I work around this problem?

I'll let you know if I come up with anything, and please respond if you have any insight.

Thanks!

Comments

mayberryman wrote on 2/2/2002, 3:54 PM

wow! This is deja vu all over again! Same problem..same dvd player... but I'm not as observant as you with respect to the black background and fading white letters. However, the last time I posted about audio dropouts using mc vcd defaults, I mentioned that I could reproduce the problem consistently...and....drumroll please...the test clip DOES have a black background (with a blue line box) and fading white letters at the point of audio stutter. So.....where do we go from here?

EArrigotti wrote on 2/2/2002, 11:01 PM

I don't know, and it seems that we are somewhat alone on this issue.

I will continue to experiment and I'll let you know if I come up with any solutions besides buying a different DVD player. (I just bought this one)

At least I don't feel alone in the universe anymore.

mayberryman wrote on 2/3/2002, 2:45 PM

Mine's a Pioneer dvd 333..and plays just about anything on any media. And...just to make us both feel worse...if I encode the exact same stream using TMPGenc, it plays fine...so...there's something in the MC codec which is allowing this to occur. I keep hoping (in vain I fear) that the much anticipated MC update will fix this.