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    Home - DivX Articles - DVD to DivX using FlasK MPEG Guide - Converting PCM and MPEG audio

    Converting PCM and MPEG audio
      You are on this page because the DVD/VOB file you want to convert has PCM or MPEG audio, which FlasK 0.594 cannot handle at the moment. This page assumes you have already converted your video to AVI/DivX, and that everything is working properly (except that your AVI/DivX file does not have audio).

      In order to convert the PCM and MPEG audio to a format that can be included in AVI/DivX (eg. WAV), we must use the DVD2AVI program (click here to download DVD2AVI).


      PCM Audio:


        1. Start DVD2AVI.


        2. From the "File" menu, select "Open". Load in your first VOB file.


        3. From the "Audio" menu, go into the "Track Number" submenu. You can select the track you want to convert. Leave it at "Track 1" should work for most VOB files.


          4. Selecting a Track Number in DVD2AVI


        4. From the "Audio" menu, go into the "Channel Format" submenu. Select "Linear PCM".


          5. Selecting a Channel Format in DVD2AVI


        5. From the "Audio" menu, go into the "48 > 44.1 kHz" submenu. Selecting the "off" setting will mean that your audio remains at 48 kHz - setting it to low/mid/high/ultrahigh will convert it to 44.1 kHz.


          6. Converting from 48kHz to 44.1kHz in DVD2AVI


        6. From the "Audio" menu, select the "Normalization" option, and you can use the slider to change the level of normalization - set to 100 and make sure the checkbox on the top-right corner is checked. This step is option, but highly recommended. This is because DVD audio has a greater dynamic range (ie. higher "highs" and lower "lows"), the resulting audio after conversion may not be loud enough on your average set of computer speakers. This is why we introduce the audio normalizing process ("evens" out the lows and highs and then increase overall volume), which can dramatically improve audio volume.


          7. Normalizing audio in DVD2AVI


        7. From the "File" menu, select "Save Project". The Project should save, and you should a .d2v file along with a .wav file. Delete the .d2v file and keep the .wav file. You can listen to this WAV file, and if volume it too low, you can use your favorite audio/WAV editor to pump up the volume.


        8. You'll now need to click here (or scroll down the page) and go to the section on how to add the WAV into your AVI/DivX file.





      MPEG Audio


        1. Start DVD2AVI.


        2. From the "File" menu, select "Open". Load in your first VOB file.


        3. From the "Audio" menu, go into the "Track Number" submenu. You can select the track you want to convert. Leave it at "Track 1" should work for most VOB files.


          4. Selecting a Track Number in DVD2AVI


        4. From the "Audio" menu, go into the "Channel Format" submenu. Select "MPEG Audio".


          5. Selecting a Channel Format in DVD2AVI


        5. From the "Audio" menu, go into the "MPEG Audio" submenu. Select "Demux All Tracks".


          6. Selecting Demux All MPEG Audio Tracks in DVD2AVI


        6. From the "Audio" menu, go into the "48 > 44.1 kHz" submenu. Selecting the "off" setting will mean that your audio remains at 48 kHz - setting it to low/mid/high/ultrahigh will convert it to 44.1 kHz.


          7. Converting from 48kHz to 44.1kHz in DVD2AVI


        7. From the "Audio" menu, select the "Normalization" option, and you can use the slider to change the level of normalization - set to 100 and make sure the checkbox on the top-right corner is checked. This step is option, but highly recommended. This is because DVD audio has a greater dynamic range (ie. higher "highs" and lower "lows"), the resulting audio after conversion may not be loud enough on your average set of computer speakers. This is why we introduce the audio normalizing process ("evens" out the lows and highs and then increase overall volume), which can dramatically improve audio volume.


          8. Normalizing audio in DVD2AVI


        8. From the "File" menu, select "Save Project". The Project should save, and you should a .d2v file along with a .wav file. Delete the .d2v file and keep the .wav file. You can listen to this WAV file, and if volume it too low, you can use your favorite audio/WAV editor to pump up the volume.


        9. You'll now need to click here (or scroll down the page) and go to the section on how to add the WAV into your AVI/DivX file.





      Adding a WAV into a AVI/DivX using VirtualDub

    • The last few steps involves putting the WAV audio file into the AVI/DivX file using VirtualDub (click here to download VirtualDub) :


        1. Start VirtualDub and load in your converted DivX file.


        2. From the "Video" menu, select "Direct Stream Copy".

          VirtualDub's Video Menu


        3. From the "Audio" menu, select "Full Processing Mode".

          VirtualDub's Audio Menu


        4. From the "Audio" menu, select "AVI Audio" and load in your normalized and/or amplified WAV file.


        5. From the "Audio" menu, select "Compression" and select "MPEG Layer-3" and the same or lower bitrate/attributes (eg. 128 kBit/s, 48000 Hz, Stereo) you used earlier to make the DivX movie (in FlasK MPEG).


        6. From the "File" menu, select "Save AVI" to save the AVI to include the normalized audio. This shouldn't take too long as only the audio is re-encoded/compressed - the video will be left along.
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