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Re: De-multiplexing: Does it affect quality?


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Re: De-multiplexing: Does it affect quality?
by Roadkill on Jun 28, 2005 at 2:37:47 pm

Demultiplexing doesn't affect the quality. It simply splits out the video and audio "as is" from the muxed file.

There could be some issues converting the audio to Dolby Digital (AC3) though. If the audio in the multiplexed file is MPEG-1 Layer II compressed, you will be going from one compressed format to another one. This doesn't always turn out as intended. I would recommend to convert the audio first to uncompressed PCM (WAV / AIFF) audio at 48KHz, 16 bit, stereo and to use that to create the AC3 audio from.

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Current Message Thread:

De-multiplexing: Does it affect quality? by Bob Cole on Jun 28, 2005 at 1:18:45 pm
- Re: De-multiplexing: Does it affect quality? by Roadkill on Jun 28, 2005 at 2:37:47 pm
  - Re: De-multiplexing: Does it affect quality? by Bob Cole on Jun 28, 2005 at 6:33:03 pm
    - Re: De-multiplexing: Does it affect quality? by Dave Friend on Jun 28, 2005 at 7:15:02 pm
      - Re: De-multiplexing: Does it affect quality? by Bob Cole on Jun 28, 2005 at 11:20:27 pm
        Re: De-multiplexing: Does it affect quality? by Dave Friend on Jun 29, 2005 at 3:24:56 pm
        Re: De-multiplexing: Does it affect quality? by Bob Cole on Jun 30, 2005 at 1:44:13 am

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