Resampling Audio - 44KHz to 48KHz

[carpy666]

On converting SVCD format films which have 44.1KHz audio, I need to resample the audio to 48KHz for DVD creation. Does anyone know if this can cause audio sync issues? Or is the conversion the same time length?

Any help please.

Thanks.

[fmctm1sw]

Not if it's done correctly. I use Besweet and SSRC.

[DeleriumMDK]

I don't believe it causes sync issues as its only changing the type of sound, not how long it runs. Ive authored quite a few DVD's with TMPGEnc DVD Author (which does the 44 -> 48 Conversion) and never had a problem with my audio

[offline]

DeleriumMDK is correct. You are just changing the frequency, not the
sample or bit rate.

[thor300]

Thats strange delerium, i used TDA only once for resampling audio and that one time it was an accident i did it. The sound was distorted and volume was cranked up quite much, and the channels blended into eachother. Anyway MP2 audio is not so good for DVD, i would recommend Besweet to convert to 2 channel AC3, example syntax follows:
besweet.exe -core( -input "c:\file.mp2" -output "c:\file.AC3" ) -azid( -s stereo ) -shibatch( --rate 48000 ) -ac3enc( -b 256 )

[carpy666]

OK thanks guys. Just that I have been using DVDLAB to transcode the audio into 48KHz, but the audio seems to gradully creep out of sync. Are you suggesting that the best way, is to use another tool beforehand and then import this into DVDLAB?

Thanks.

[fmctm1sw]

OK thanks guys. Just that I have been using DVDLAB to transcode the audio into 48KHz, but the audio seems to gradully creep out of sync. Are you suggesting that the best way, is to use another tool beforehand and then import this into DVDLAB?

Thanks.

I operate only in elementary streams nowadays. I capture AVI, save wav and encode MPEG-2 with TMPG. I use besweet to convert the wav to AC3 and then author in DVDlab. I have 0 problems with sync. I don't know if it's coincidence or not but it works for me.

[carpy666]

OK thanks fmctm1sw.

I will try BESWEET to convert to AC3 (48KHz) and then import into DVDLAB.

[fmctm1sw]

OK thanks fmctm1sw.

I will try BESWEET to convert to AC3 (48KHz) and then import into DVDLAB.

you'll need ssrc as well

[moraize]

Hi, This was an old post, but I´m using it because it´s the same problema I´m having nowadays...

I´m trying to convert a 25fps Divx movie with Mp3 160Kpbs 44.1 audio to Compliant DVD files. The video is ok, no problem, but I tryed to convert the audio to 48Khz, but it got totally out of sync with video.

First I saved it to a Wav File and encoded to Mp2 in TMPGenc changing the Sampling rate to 48Khz, but I changed the Bitrate to 128Kbps too, could it cause the loss of sync??

Thanks...