SBAF DAC Talk II

Discussion in 'Digital: DACs, USB converters, decrapifiers' started by Maxx134, Jul 22, 2018.

  1. purr1n

    purr1n Desire for betterer is endless.

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    Benchmark's marketing document and Lund's paper would suggest for "moderate" offenders with approximately 10 overs, they might either be one incident with 10 samples, or several incidents of a few samples each. That's means 0.00023 seconds for the long one.
     
    Last edited: Jan 26, 2019
  2. purr1n

    purr1n Desire for betterer is endless.

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    I want bloody specifics so I can hear these intersample overs myself, switching between -4db and -0db on the player.
    • What tracks / specific masters
    • What DACs
    Can you propose a test that determines the extent of this issue for any given DAC? I think this is important while we are getting OCD about it.

    Did Bon Iver's latest cause immense pain and digititus while you listened without digital attenuation? Did you perform level matched blind tests with the digital attenuation on and off? Which tracks and what time codes on Bon Iver's latest should we expect the issues?

    BTW, I already hear a lot of clipping on recordings. I'm talking about stuff that probably clipped on the console and then got mixed in later at a lower level. We are talking about obvious analog clipping.

    Can someone find that diddle I wrote about neo-audiophiles being like girly-men, complaining about hiss, noise when ear is up to tweeter, distortion not being below -139db, etc.?
     
    Last edited: Jan 26, 2019
  3. purr1n

    purr1n Desire for betterer is endless.

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    P.S.S.

    This is interesting, but I would prefer specifics rather than pure theorycrafting on SBAF.

    To what extent is this an issue? And I don't mean grabbing all the tracks that happen to max at 0db and hot ones with high RMS levels. I mean a good representative sample of actual music.

    And on that "to what extent", are there DACs that exhibit these overs more than others? What tests can be used to assess this?

    Without specifics, I'm more apt to think that people are full of shit. Since the overs occur sporadically and are not pervasive, we also need to be specific on the time codes where this is most likely to happen.

    There is a huge pragmatic focus here on SBAF. How likely is this to occur? What the impact of the occurence? Can we hear this? And if we can, does it matter in the overall context? (I could care less about intersample overs on brickwalled tracks.) The last two are even more crucial than the first two.
     
    Last edited: Jan 26, 2019
  4. GoodEnoughGear

    GoodEnoughGear Evil Dr. Shultz‎

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    There could be a pattern of people with good ears mis-attributing this to another phenomenon, but on the face of it that's a very very long shot. The likelihood that it is reasonably irrelevant seems high.

    Edit: spelling
     
    Last edited: Jan 26, 2019
  5. purr1n

    purr1n Desire for betterer is endless.

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    Highly probable since this issue can only arise from brickwalled, level maxxed, and hot recordings.
     
  6. AudioNut

    AudioNut Acquaintance

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    It's really easy to do it yourself if you try that Apple tool I linked to, or if you're willing to write a handful of lines of MATLAB/Octave/NumPy code.

    Really feeling the slurs today, huh? "Backdoor boys", "girly-men"? I'm not all that inclined to waste time debating sad fifty-something middle-schoolers.
     
  7. HotRatSalad

    HotRatSalad Friend

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    In other words stuff not really worth wasting time listening to
     
  8. Mithrandir41

    Mithrandir41 Friend

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    This is a fun place, don't be an asshat
     
  9. Vtory

    Vtory Audiophile™

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  10. Slaphead

    Slaphead Facebook Friend

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    I think what @purr1n is getting at is that are these ISOs audible. Sure I could go and write my own sinc function in ML or use the Apple tool you linked to and then see if there are any ISOs, and there almost certainly will be in certain types of music given how they are mastered. However the question is that are these ISO's audibly relevant when the track is already a mastering clusterfuck?
     
  11. purr1n

    purr1n Desire for betterer is endless.

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    Again, what DACs? What tracks? I can't do this if I can't even get a specific recording / track ID from you. I was going to do some semi-blind tests to see if I can hear these things.

    This is why I think you are completely full of shit. At best, your perception is skewed by theory / HA forum discussion where its effects are fearmongered as being x1000 worse than it is in reality. At worse, you never did any listening tests.

    It took you this long to realize this? Oh, the Backdoor Boys thing was a slip. On my phone. I actually like some of their songs. I'm a sucker for good melodies and catchy lines.
     
  12. ufospls2

    ufospls2 Friend

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    Thats f'ing dumb and untrue. Mastering engineers for the most part are after a mix of the "best sound" (whatever the f**k that means) and making their masters sound good on the majority of systems that music will be listened to on. This means that for the most part, its going to be systems that are

    a) Not ideal
    b) Inexpensive
    c) Don't use Siltech classic grand supreme golden ear reference cables

    They have to strike a balance between "good" sound, and the mix/master itself sounding good on the vast majority of systems which again, are not ideal.

    Mastering engineers all have their own ideas of what sounds good, sure. That makes sense. However, they are also always on the search for better gear, better tweaks, and better ideas to make their mixes sound better. A good mastering engineer will be open to trying new things, and new techniques.

    It f'ing bugs me how "Audiophiles" (and that describes me as well) complain about compression and loudness and dynamic range etc...

    Compression is a mixing engineers/mastering engineers best f'ing friend. It just needs to be used wisely, and sometimes, it needs to be used more than the average "Audiophile" would like.

    Don't even get me started on the bullshit "hearing what the artist intended" schtick that permeates audiophile circuits...

    /rant off

    Sorry, this shit has been bugging me for the last little while more than normal and you got the full force rant. I feel better now.
     
  13. ufospls2

    ufospls2 Friend

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    If the music is good listen to it. Fucks sake.
     
  14. 9suns

    9suns [insert unearned title here]

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    @ufospls2 I would like to add that the mix/master has to please the client, if the client (record label or indepent group/rapper, etc) wants brickwalled to shit loud and strident sounding album...then that's what the engineer has to do. Sadly, this happens like +90% of the time, thus what you're hearing is what the engineer has been told to do, not his idea of "good sound".
     
  15. ufospls2

    ufospls2 Friend

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    In most cases (speaking in terms of mass marketed popular music,) its not even the artist, its the f'ing execs who sign the paycheques. For music that makes money, anyhow. Smaller artist have more input - sometimes
     
  16. 9suns

    9suns [insert unearned title here]

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    Yes, mostly is because of the record label's executives, but not necessarily always. Some independent artists (who, of course, don't have a record label with greedy executives behind), have horribly compressed albums. I have a hard time thinking about a good sound engineer yelling to the band's singer (while pointing at a 1176 compressor with 36 empty coffee cups on top): "all buttons at once, 0 dbFS or your shit won't sound amazeballz you deaf prick".
     
    Last edited: Jan 26, 2019
  17. SSL

    SSL Friend

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    Also harmonics. The strongest harmonic is usually the first at an octave above the fundamental. Then you factor in the frequencies where human hearing is most sensitive and you end up in the midrange.
     
  18. winders

    winders boomer

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    The mastering engineers who mastered CDs in the 80’s and much of the 90’s didn’t produce overly loud compressed CDs. Did they sound like crap? I didn’t think so then and don’t think so now. What changed? Sound quality is not the driving force anymore. The record labels are making the mastering decisions now and loud and compressed is what they want. It has nothing to do with making the songs sound good on the vast majority of systems. It’s about being as loud or louder than other songs.
     
  19. msommers

    msommers High on Epipens

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    But isn't louder = betterer?
     
  20. HotRatSalad

    HotRatSalad Friend

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    wow take it easy, I prefer for it to sound good, there's 2 things that make a great album. Great music and Great sound quality. I try and stay away from brickwalled garbage masterings if I can unless I have no choice. I still won't listen to it much ear fatigue is a real thing.
     

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