track duration

[anders@dac.se]

My soundtrack is 2:08 minutes long, after i've encoded it to AC3 its only 1:58 long... And you can hear that the sound is being played faster than it should..

If i add a LFE track to the AC3 the bass is completly cut off (the LFE is from 0 - 120 HZ)

I've tried bith sonic soft encoder and the encoder that comes with sonic Scenarist..

/Anders

[DSPguru]

i bet your source signal is 44.1khz and your encoded AC3 track is 48khz.
the ratio between the times you mentioned and between those sample frequencies is 1.08.

[anders@dac.se]

I use a guide you gave me, about making a stereo signal into a 5.1 ac3 signal. In that guide he uses 44.1 khz sound. Can i use 48 khz instead? The 3 wav files that are included in the guide (UHJ_W_4416.wav, UHJ_X_4416.wav and UHJ_Y_4416.wav) are saved with 44.1.... i need to encode the final ac3 in 48..

I've tried to resample the file that the guide produces to 48, but when i open it in soft encode it opens it as an mono signal, not an 5.1

/Anders

[DSPguru]

hi A. !
use SSRC (http://shibatch.sourceforge.net). it supports multichannel waves.
yr commandline should include --rate 48000

edit: fixed the link

[anders@dac.se]

I tried to use your beslip to split it and then upsample to 48 in cool edit and then encode it in soft encode.. Could that work? Or do i loose any of the surroudnsound information?

Thanks for all the help, Anders

[anders@dac.se]

I tried your ssrc, it did the same work i talked about but faster :)

I think its cheap of Soft Encode not to resample the Source when you select another rate then the source...

/Anders

[DSPguru]

Soft Encoder is an old and discontinued project.
don't expect much from it..