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View Full Version : multiplexing adds hiss to mp2 audio


nosaj
15th January 2003, 16:59
Ive seen posts discussing how conversion to mp2 audio can create a high pitch noise artefact and the consensus seems to be that...it happens sometimes...deal with it.

Im getting the same annoying mp2 audio hiss but only upon multiplexing with my .mpg (playing mp2 alone sounds fine). Im only getting familiar with SVCDs but id like to think that theres some way of adding audio without changing it (never had a similar problem with AVIs).

My mpg is created in tmpgenc from an avi. Ive tried doing audio:

1) directly in tmpgenc from the avi source (audio = mono mp3 48khz)
2) convert wav to stereo --> resample (44.1khz) and convert to mp2 with besweet) --> multiplex with mpg in tmpgenc and bbmpg.

thanks for any input you may have

wmansir
15th January 2003, 18:33
Are you by any chance using PowerDVD to watch the SVCDs? I noticed on my system it adds a great deal of hiss to svcds, but wmp classic and WinDVD do not.

nosaj
15th January 2003, 19:42
yes i am using powerdvd - good guess!

will try out other players when i get home in a few hours and get back to you...

nosaj
16th January 2003, 05:43
yes - windvd plays this mpg with no hiss whereas powerdvd does

thanks for the tip!