Compressing audio stream PCM to MP3

ikwin · Post by **ikwin** » Sat Dec 18, 2004 1:00 pm

Hello,

I have captured a clip with VideoStudio8 successfully, but the sound track is uncompressed (PCM), and I want to compress it to mp3(or other). How can I do this with VideoStudio8, do not recompressing video stream? (as in Virtualdub is option Video\Direct stream copy) Is it possible with VideoStudio8 ?

Thank you very much for advices

Mindaugas

THoff · Post by **THoff** » Sat Dec 18, 2004 5:21 pm

Yes, you can do that, provided you output to a format that supports codecs, i.e. AVI. When you go to create the file, click on the Options button, then the AVI tab, and choose an audio codec and configure it.

ikwin · Post by **ikwin** » Sun Dec 19, 2004 7:40 pm

THoff wrote:Yes, you can do that, provided you output to a format that supports codecs, i.e. AVI. When you go to create the file, click on the Options button, then the AVI tab, and choose an audio codec and configure it.

thank you for advice

Yes, i understand that you said, but then choosing an audio codec, you
MUST also choose the video codec (option above). If i chouse "None" it makes an output file with uncompressed video stream, if i chouse the same codec as i used capturing video (Xvid) it recompress both - audio and video streams, and i waste much of time recompressing video stream that is not very wise and, is it ?

this way compressing 1.5h clip took about 10h and at the end of the clip sound does not support the view - sound goes ~half second slower

Lithuania , Mindaugas

david reece · Post by **david reece** » Mon Dec 20, 2004 1:23 pm

i have found that with VS8 if you convert the audio to MP3 or MPG-Audio it goes out of synch almost immediately.

My suggestion is get the AC3 codec pack and convert to this. it also works. However i am going by the DVDWS2 method to Create DVD's. no synch problems at all this way.

Also dont capture as MP3 or MPG-Audio as this will throw the audio out of synch as well!