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Live albums and dynamic compression: CD versus DVD

Discussion in 'audio' started by darrenyeats, Nov 17, 2012.

  1. darrenyeats

    darrenyeats pfm Member

    As a public service... The following live albums are mastered with far less dynamic compression on DVD than on the corresponding CD for the same concert. (I have ripped the audio from the DVD and I listen to that now! They're great!)

    Portishead, Roseland New York
    Jeff Beck, Performing this Week... Live at Ronnie Scott's
    Alice in Chains, Unplugged

    The following showed no difference between the CD and DVD:

    Kraftwerk, Minimum - Maximum

    As examples, see the screenshots below. In each case top waveform DVD, bottom CD.
    Darren


    Alice in Chains - Heaven Beside You
    [​IMG]









    Jeff Beck - Big Block
    [​IMG]
     
  2. mr_phil

    mr_phil If it isn't broken, try harder

    I can't see a lot of difference, what am I missing?

    Phil
     
  3. Michael J

    Michael J pfm Member

    The fact that there are only two extracts shown?
     
  4. sam_cat

    sam_cat ᶜ ᶦˢ ᶠᵒʳ ᶜᵒᵒᵏᶦᵉ

    Do you mean the first pair of waveforms is the dvd, second pair is cd... If thats the case then the CD version has a lot more compression.
    Otherwise (as above) not much difference.

    Sam
     
  5. Michael J

    Michael J pfm Member

    "In each case top waveform DVD, bottom CD."

    The clue is in the labelling: Alice in Chains; Jeff Beck.
     
  6. Tony L

    Tony L Administrator

    The Jeff Beck looks a right mess. How did the Portishead do?
     
  7. darrenyeats

    darrenyeats pfm Member

    Tony,
    I don't have a waveform pic for CD for that particular one (Spotify). But I can hear the extra compression easily so I believe it would be very obvious next to the waveform for DVD (which I have obviously).
    Darren
     
  8. darrenyeats

    darrenyeats pfm Member

    Phil,
    These are stereo waveforms.

    There are just two songs in total. For each song, two channels (Left/Right) of DVD are shown above two channels (Left/Right) of CD. I've edited the original post to make the separation clearer! Thanks,
    Darren
     
  9. lennyw

    lennyw Still throwing Eephus pitches

    Interesting. I presume in all cases the DVDs were outputting a PCM 16/44.1 signal at the very least (rather than Dobbly-Digital or DTS)?
    I can't think of any live albums for which I have both the DVD and CD.
     
  10. darrenyeats

    darrenyeats pfm Member

    The initial WAV rips said 16/48 (I converted to FLAC afterward).
    Darren
     
  11. darrenyeats

    darrenyeats pfm Member

    I have uploaded logs for various CD/DVDs to DR Database (where entries were missing) for most mentioned at the top of the thread.

    http://www.dr.loudness-war.info/

    Darren
     
  12. darrenyeats

    darrenyeats pfm Member

    I now add:
    Dire Straits, On The Night.
     
  13. Whaleblue

    Whaleblue Southbound

    Why?

    :)
     
  14. darrenyeats

    darrenyeats pfm Member

    It's brilliant? Actually not the best Private Investigations (Alchemy's is better but then I think the studio version is the best anyway) but otherwise my favourite DS live performance. Romeo and Juliet is stunning, especially on DVD. The guitar playing has a gorgeously subtle country twang in many places.

    I know you were kidding BTW ...!
     
  15. AndyU

    AndyU pfm Member

    Jeff Beck live at Ronnie Scott's features the foxiest bass player in the history of bass playing. And the man himself is utterly smitten.

    http://youtu.be/IIBNh5VyiVk

    Go for the DVD!
     
  16. Suffolk Tony

    Suffolk Tony pfm Member

    I've ripped all my music dvds/Blurays and of the few I've managed to compare the dvd rips always sound better. I recently compared a cd rip of One Night Only to my bluray rip and the latter won hands down.
     
  17. Whaleblue

    Whaleblue Southbound

    Yes, it's the oldest HiFi jibe...

    Romeo and Juliet era was great - it all went wrong with Brothers in Arms.

    IMO :)
     

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