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minnjd

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Everything posted by minnjd

  1. minnjd
    That looks like a graph from a 90's movie
  2. minnjd
    Definitely has some loud 30Hz stuff but it looks heavily filtered under that.....
  3. minnjd
    To the best of my knowledge SpecLab can't process multichannel WAVs, it can only do mono. That's why we do the mixdowns
  4. minnjd
    Mixing WAV's together doesn't do anything to the quality of the audio (unless you change bit rates or sampling frequencies). We have to do that mixing in order to create the PvA graphs and level numbers when we graph movies. You can run individual channels through SpecLab if you want to see what's going on in them but in order to capture the overall bass in a track you need to mix them down to a single file.
  5. minnjd
    I use eac3to. It'll convert Dolby and DTS files to multiple WAV files (one for each channel). Then those files are mixed down to a mono WAV in Audacity.
  6. minnjd
    in the 'file' menu there's an entry for 'audio file and stream analysis'. In that menu select 'analyze audio file (without DSP)'. That'll take you to a menu where you can select the audio file and set the FFT lengths.
  7. minnjd
    I can't speak for anybody else but I rip the movies to my computer and then use SpecLab to directly read the digital audio file. I had a lot of issues when I tried to run things through my sound card as well so I quit doing it.
  8. minnjd
    Quick n dirty Deadpool: 111.3 dB level 29.58 dB dynamics 18Hz extension Clipping is noticeable in the waveforms, especially in the center channel. Not sure how noticeable it is yet. Doesn't appear near as bad as The Force Awakens, so far at least. Better details and full poll after I get a chance to watch it.......
  9. minnjd
    Picked up Deadpool today. Should have numbers up in a day or so but will take longer to do a poll since I need to watch it first
  10. minnjd
    Haven't bought the movie yet but I should have it soon.
  11. minnjd
    The mains and center look pretty impressive and capable of moving some air. By comparison that sub looks a bit anemic. I'll bet it's loud, but probably not too deep.
  12. minnjd
    Maybe a touch more low content, but yeah, nothing to write home about. Nice to see Blu-Ray.com's hyperbole is still alive and well. I really like their reviews for the most part but they constantly overdo it when it comes to bass. Although we have to leave it to High Def Digest for this "Spectre" nugget: If you don't have a good subwoofer in your home theater, get yourself out and buy one right now. [Fair warning: Your spouse and neighbors may object.] The bass on this disc is insane. My sensory memory of the opening scene reverberated through my bones a full day after watching it – and that was just from the throbbing music. When the explosions hit… well, just make sure you secure anything in your home that might rattle or fall, because your whole house is going to shake. Yeah, not so much.
  13. minnjd
    Yeah they are very subjective over there with audio reviews. I still can't believe that anybody in their right mind would find good bass in 2012 unless you had an 8 inch sub cranked 10dB over normal in a bedroom.
  14. minnjd
    No joke. I've seen reviews that state "amazing low frequency effects", and "Dynamic range is robust -- especially low bass, which can really deliver a wallop." The recent 4k release also has quite a bit of praise for low end, although that disc features a new Atmos remix so they may indeed have boosted the bass levels for that one. That being said, I still have a hard time believing "Bass was so demonstrative I even turned down the subs by a few dBs because I was literally rattling the walls of my living room." Back when the Fifth Element was released soundtracks were still mastered to analog magnetic tape using analog mixing boards, and even heavy hitters like Saving Private Ryan didn't go under 30Hz. So unless they did some serious low end processing or a full on, from scratch, new mix I doubt it has any more ULF than the original Blu-Ray (which is to say none).
  15. minnjd
    JW was decent for slam bass but definitely not five star. The Force Awakens cleans its clock easily and it's not gonna be a five'er either. Oh well, some reviewers still say the Fifth Element has 'some of the deepest bass they've ever heard'.
  16. minnjd
    That is kind of odd. Looks like their graph has more midbass than the one here. Do they say how they capture their PvA's?
  17. minnjd
    Criterion is all about presenting their movies in their original release format. Given the type of movies they do, mono is pretty common. While it might annoy surround sound enthusiasts, I really respect Criterion's approach and wish more studios would do the same. Or at the very least provide original mixes and home mixes side by side. Hell even Disney did that for a while (on the Lion King and Aladdin). As far as TFA goes you'll enjoy it. It does clip and the bass is filtered (slightly), but it does sound pretty good overall. Definitely the most aggressive Star Wars soundtrack yet.
  18. minnjd
    I have this disc as well. I sampled the two soundtracks and they are quite a bit different, especially in overall tone. The home track is less dynamic but also has the bass frequencies boosted, so they are audible at lower volumes. The theatrical track had to be turned up a lot higher for that, but then the louder parts were almost deafening. Personally I prefer the home mix. I agree though that Criterion did the right thing by giving users the option and trusting us to pick the right one. Unfortunately, Criterion is pretty abnormal in this regard.....
  19. minnjd
    You hit the nail on the head. Most theaters aren't run by technical people and a lot of them already have plenty of problems just trying to reach a decent presentation standard. Many movies these days are remixed to some extent for the home environment. The dynamic range is often reduced and the track is EQ'ed for smaller rooms and lower volumes. I suppose it's possible they could remove the 30Hz filters when they do this but that would likely entail more remixing work than it's worth to them. Much as it sucks to hear, ULF capable systems are few and far between in the grand scheme of things and for the most part mixers don't pay any attention to it. Even 5 star movies were originally mixed for the theater, so for the most part they will have 30 Hz peaks and some kind of falloff afterwards. The good ones minimize that slope. Given the demand for MOAR BASS it's getting less likely to see truly unfiltered mixes, but they are out there.
  20. minnjd
    Yep, Nuttall 4B.
  21. minnjd
    1024 with a 48 decimation. 10ms scroll rate.
  22. minnjd
    Many movies have this curve due to the environment they are originally mixed for. Most commercial theaters don't go much below 30Hz with their subs, and virtually none can go below 20Hz with any authority. This means that any content down there is inaudible to the average movie goer. Being that movies are being filled with louder and louder bass effects, those under 30Hz frequencies are deliberately filtered out in order to gain additional bandwidth that they can then use to really push the 30-40Hz content that theaters can reproduce. This doesn't always happen though. The Martian, for instance, doesn't employ any kind of filter on it's bass, hence the mostly flat line from 50Hz down to 1Hz. That being said, the bass in the Martian is fairly subdued, so it's likely they didn't need the additional headroom that would've been gained by filtering the LFE.
  23. minnjd
    Here's the fixed PvA: Yes I saw that 1Hz bump but I ignored it because it is a cheat and almost looked like stray signal noise when it happens. I'll adjust the numbers for the poll.
  24. minnjd
    I quickly glanced over the waveforms in Audacity at 11PM before going to bed. That program has a setting where it highlights any signal that clips above 0 dB. Looking at TFA I didn't see any of those highlights, so I believed there was no clipping. Maxmercy mentioned that he had done some closer examining of the actual wave forms and noticed all kinds of flat tops that indicate a brickwall limiter was being used, but set to -3dB. So basically nothing made it through that was louder than that and it can cause the same effect as hard clipping (where the signal goes over 0dB), just at a lower volume. I haven't had a chance to confirm his findings yet but Max is a pro at this stuff so he's likely correct, and that's why I said there was good evidence. Long story short the track does not hard clip due to it's low volume, but it may have clipped waveforms regardless. That being said no, I didn't find the clipping to be objectionable outside of the Starkiller base weapon firing. That one did sound kinda bad. As far as the 13Hz extension, that is the point where the bass levels are -10dB down from wherever the 'peak' frequency is. It's not however the lowest frequency contained in the sound track. TFA has content all the way down to 1Hz but even Bossobass Dave likely wouldn't be able to do much with it due to it's low intensity compared to the stuff higher in the spectrum. Sorry for the confusion. The lesson learned is that I shouldn't try to bang these reviews out right before bed on a weeknight
  25. minnjd
    The PvA shows a peak around 30Hz and a gradual slope down from there. The movie is definitely filtered, but not quite as dramatically as Spectre or ST:ID. I had run it but it didn't upload properly to the image hosting site so I wasn't able to link it in and I can't re-upload it until this evening.
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