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maxmercy

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Everything posted by maxmercy

  1. maxmercy

    X-curve compensation re-EQ

    So what would you do if you had what most people on forums have available: limited budgets, limited placement options, some room treatment, REW measurement capability and limited parametric/IIR correction capability? Would you mainly focus on minimum phase problems in the LF and largely ignore MF/HF, or how would you go about optimizing a system with limitations like the above, given what you know now? I ask not only because that's the way my system is set up, but many others with miniDSP or other DSP components who have had less than stellar results with the on-board AVR 'room correction' products. JSS
  2. maxmercy

    X-curve compensation re-EQ

    I do not follow... How can one correct something that is inherently designed into a speaker (power response), if it does not depend on speaker location? Or are you talking about correcting power response depending on the speaker's location in the room? Is this why incredible amounts of headroom are needed? Is there not a simpler way to do this by changing the possible layout and treatments in the room, or is this correction geared towards getting as much as possible from a current configuration if placement and treatment options are limited? JSS
  3. I'll look at it. I enjoyed the film, but wasn't really impressed by the LF, much like Thor:Ragnarok. JSS
  4. This is the first of it's kind objective measurement tool for comparing the bass in movies - it's totally apples-to-apples. (The measurement methodology AND content below 2.5 Stars is at the bottom of this post.) No longer do you have to rely on some website's review of the bass in a movie. Who can decipher what "aplomb" and "bombastic" and "incredibly deep" and "teeth-rattling" and "room-shuddering" really mean, anyway? Now you don't have to. The links below will take you to each movie's measurements. If a link doesn't take you to the right measurement, reload the browser by hitting F5 or just click on the address bar and hit "Enter." If you find a bad link, post about it and we'll investigate! Updated December 12, 2015 - Here's a Google docs spreadsheet with the current list. To sort, goto View-->List. 5-Star Films: 9 Edge of Tomorrow Everly Flight of the Phoenix Hellboy II: The Golden Army Pixels Ragnarok Star Trek War Horse 4.75-Star Films: All Is Lost Beowulf Captain America - The Winter Soldier Dredd Ender's Game The Golden Compass Hanna How to Train Your Dragon The Hurt Locker The Incredible Hulk Jupiter Ascending Kick-Ass 2 Live Free or Die Hard Lone Survivor Looper Mission Impossible: Ghost Protocol Olympus Has Fallen Phantom Pompeii Pulse Resident Evil: Apocalypse Serenity Skyfall The Terror Live The Three Musketeers (2011) Valkyrie War of the Worlds 4.5-Star Films: 28 Weeks Later 300: Rise of an Empire 5 Days of War Abraham Lincoln: Vampire Hunter After Earth The Amazing Spider-Man 2 Attack the Block Battle: Los Angeles Brave Cloverfield Conan the Barbarian (2011) Crank: High Voltage Daredevil The Dark Knight The Day After Tomorrow Drive Elektra Elysium Exodus: Gods and Kings The Expendables 3 Finding Nemo Gamer Getaway The Grandmaster (CHI) Harry Potter and the Goblet of Fire Harry Potter and the Order of the Phoenix The Iceman Insurgent Jurassic World Kon-Tiki The Man with the Iron Fists The Matrix Revolutions Ninja Assassin Oblivion Oculus Oz the Great and Powerful Percy Jackson and the Olympians: The Lightning Thief Sherlock Holmes Sky Captain and the World of Tomorrow (DTS) Solomon Kane Superman Returns Thor 2: The Dark World Trollhunter Underworld Awakening Walking With Dinosaurs (2013) X-Men 3 4.25-Star Films: 10,000 B.C. A Good Day to Die Hard The Admiral: Roaring Currents Adventures in Zambezia The Amazing Spider-Man Assassin's Bullet Avatar Batman Begins Black Hawk Down Bullet to the Head Captain America: The First Avenger Casino Royale Cat Run 2 Chappie Clash of the Titans The Conjuring The Dark Knight Rises Dead in Tombstone Death Race 2 Earth to Echo Evil Dead The Exorcism of Emily Rose The Expendables 2 The Grandmaster (USA) The Grey The Hitchhiker's Guide to the Galaxy Homefront Horton Hears a Who Hot Fuzz Immortals Inception The Incredibles Jack the Giant Slayer John Wick Jurassic Park III Legend of the Guardians: The Owls of Ga'Hoole LOTR: The Fellowship of the Ring (BR Ext Ed) Mad Max: Fury Road Maleficent The Maze Runner Monsters, Inc. Monsters University The Mortal Instruments: City of Bones Need For Speed Ninja Non-Stop Open Range Paranoia Pearl Harbor Piranha 3D Quantom of Solace The Raid 2: Berandal Ratatouille Resident Evil: Afterlife Rise of the Planet of the Apes Running Scared Rush Scott Pilgrim Vs. the World Seventh Son Shaun of the Dead Sin City Sin City 2 Snowpiercer Star Wars: A New Hope Total Recall Transformers Transformers: Revenge of the Fallen Triangle Tron: Legacy U-571 World War Z The World's End X-Men X-Men 2 X-Men: Days of Future Past X-Men: First Class 4-Star Films: 3:10 to Yuma The Bourne Legacy The Bourne Ultimatum Children of Men Commando Constantine Crank Death Race: Inferno Despicable Me 2 Escape Plan Fight Club GI Joe: Retaliation Gravity Hercules Inside Iron Man 2 Jack Ryan: Shadow Recruit Jarhead Kick-Ass Knight and Day Knowing Legends of Oz: Dorothy's Return LOTR: The Return of the King (BR Ext Ed) The Machine Max Payne Monster House Ninja: Shadow of a Tear (aka Ninja 2) Noah Pacific Rim (7.1 DTS-HD MA) The Railway Man Real Steel Resident Evil: Retribution Stalingrad Star Wars: Attack of the Clones Star Wars: The Phantom Menace Terminator 3: Rise of the Machines Terminator Salvation Thor Toy Story 2 Toy Story 3 Transformers: Age of Extinction Wall-E The Wolverine (7.1 DTS-HD Unleashed Ext Ed) 3.75-Star Films: 3 Days to Kill Alien Vs. Predator The Art of Flight Babylon A.D. Bears Bee Movie Bolt Bullet Captain Phillips Cars Don Jon The Fast and the Furious 6 Green Lantern Guardians of the Galaxy Happy Feet Hellboy Hitman Ice Age Ice Age: Dawn of the Dinosaurs Insidious Chapter 2 Interstellar Into the Woods Iron Man Jarhead 2 Jurassic Park Kingsman: The Secret Service Kung Fu Panda Limitless LOTR: The Fellowship of the Ring (Theatrical BR) LOTR: The Two Towers (BR Ext Ed) The Lords of Salem Machete Kills Megamind The Raid: Redemption Rambo (2008 Theatrical) Robocop (2014) Seal Team Eight The Simpsons Movie Sinister Star Trek Into Darkness The Watch Watchmen Wrath of the Titans X-Men Origins: Wolverine 3.5-Star Films: 13 Sins 30 Days of Night The A-Team Act of Valor Alien Abduction Australia Baraka Blue Crush The Croods Dr. Seuss' The Lorax The Equalizer The Frozen Ground Fruitvale Station Fury Godzilla (2014) Harry Potter and the Chamber of Secrets Harry Potter and the Prisoner of Azkaban The Hobbit: The Battle of the Five Armies Hulk The Hunger Games: Catching Fire The Hunger Games: Mockingjay Part 1 I, Robot Ice Age: The Meltdown King Kong (2005) The Legend of Hercules The Lego Movie The Losers Lucy Man of Steel Man of Tai Chi The Man With the Iron Fists 2 The Matrix Reloaded Mission Impossible III The Monuments Men Pain and Gain Paranormal Activity The Marked Ones Robocop Sherlock Holmes: A Game of Shadows Speed Racer Star Wars: Return of the Jedi (BR) Star Wars: Revenge of the Sith (BR) Sunshine Teenage Mutant Ninja Turtles (2014) This Is the End Titan AE (DVD) Transformers: Dark of the Moon Underworld: Rise of the Lycans Unstoppable You're Next Zero Dark Thirty 3.25-Star Films: 21 Jump Street American Sniper The Art of the Steal Avengers Avengers: Age of Ultron Batman: Under the Red Hood Black Sea The Book Thief Carrie (2013) Cowboys & Aliens Domino The Double Eragon Ex Machina The Family Frankenstein's Army Gangster Squad The Great Gatsby (2013) Harry Potter and the Half-Blood Prince The Hunger Games I, Frankenstein Into the Storm Iron Man 3 Knights of Badassdom The Last Days On Mars Marley McCanick Minority Report Out of the Furnace Planes Prometheus Reasonable Doubt Rio Runner Runner Star Wars: The Empire Strikes Back (BR) Taken 2 Toy Story Turbo Veronica Mars The Movie 3-Star Films: 2 Guns A Touch of Sin Battleship Big Hero 6 Blade Runner Brick Mansions The Cabin in the Woods Chronicle Dawn of the Planet of the Apes Die Hard District 9 Epic Frozen Haunter The Hobbit: The Desolation of Smaug Ice Age: Continental Drift The International The Internship Jumper The Lone Ranger The Lost World: Jurassic Park Man On Fire Master & Commander (BR) Red 2 Resident Evil: Extinction Riddick Ride Along Saving Private Ryan Vampire Academy 2.75-Star Films: 28 Days Later Blood Ties Cloudy With A Chance of Meatballs 2 Devil's Due Die Another Day Don't Be Afraid of the Dark Dracula Untold Grudge Match Harry Potter and the Sorcerer's Stone How to Train Your Dragon 2 I Am Number Four The Matrix Metallica Through the Never Paddington Percy Jackson: Sea of Monsters Planes: Fire and Rescue Resident Evil R.I.P.D. Whiplash 2.5-Star Films: The Babadook Bad Country Death Race Divergent The Fifth Element The Natural Rio 2
  5. maxmercy

    X-curve compensation re-EQ

    I can see this, by correcting response at one location, you create problems and ringing at others. How can 'precise' correction of a reflection be 'corrected' for many locations? The peaks and dips will occur at different freqs depending on location from the speaker.. JSS
  6. maxmercy

    The Bass EQ for Movies Thread

    Pacific Rim 2 is disappointing with BEQ. While most effects gain a little, it was not as huge a difference as the PvA would lead you to believe. JSS
  7. maxmercy

    X-curve compensation re-EQ

    Are these enclosure/horn/driver or room resonances you are correcting? JSS
  8. maxmercy

    The Bass EQ for Movies Thread

    "Is it possible that, even though the aggregate PvAs looked similar, the distribution of low frequency energy between the different channels was different between the two tracks?" This is what I think happened, and constructive interference with bass management took things to another level. JSS
  9. maxmercy

    The Bass EQ for Movies Thread

    Pacific Rim: Uprising tentative BEQ: That 10Hz hit skews a lot of the spectrum. It is in an emotion-charged scene. Will screen it soon and report back. Lots of Infrasonics embedded in the LCRS in this one, which constructively make the PvA look very different from the LFE-only PvA. JSS
  10. maxmercy

    The Bass EQ for Movies Thread

    This track should not come close to 128dB WCS, largest peak on the ATMOS BEQ is 121dB. The BEQ after-gain for dialogue matching is only 4dB, not the usual 7. Watching this BEQ at '0' would yield a peak of 124dB ( I did not apply the correction to the DTS track to see how it would do, but I do know the DTS track had a lower Crest Factor. I chose the ATMOS track to BEQ since it had the more dynamics of the two. There must be a substantial difference that PvA and simple wav stats do not show to have had that large an effect to clip your setup. JSS
  11. The first time I saw BL2049 was at low volume late at night with the crowsons providing all the deep bass, and still that score was reach-for-the-volume-control-lest-you-wake-people loud. Something tells me if Philip K Dick was alive he would probably approve. JSS
  12. maxmercy

    The Bass EQ for Movies Thread

    I will look at it soon. JSS
  13. maxmercy

    The Bass EQ for Movies Thread

    Some boost under 20 would do well enough for this one. JSS
  14. maxmercy

    Bulding the Room2 listening room

    Very interesting observations. How does the FL/FR/BL config do higher in frequency velocity/phase/FR wise? What size driver/sensor do you use for velocity measurements? I need to actually do these measurements at some point. JSS
  15. maxmercy

    Samps DS21 Build

    Make sure you put a finish on the cab before you install the driver. I have had cabs that went without finish for 3 years, b/c after the driver goes in, it is so easy to just listen to it. JSS
  16. Good to see you here! Interesting... Can you run the same audio through Audacity's Clip Fix plugin and see if you get similar results? I think Clip Fix runs a bezier fit, this looks similar. JSS
  17. maxmercy

    Othorn - HT capable?

    In a perfect world knowing what I know now and starting from scratch, a DBA for subwoofer duty and floor-to-ceiling lines for LCRS would be what I would choose for a rectangular room. It would use the room for its purposes instead of trying to absorb/diffuse it away. No need for any floor/ceiling absorption (except overhead speakers), main problem would be time alignment for more than one listening row at Xover freq. Sidewall absorption still needed above and just below sub crossover and for first reflections. It is hard for me to think of a better solution unless it involves a lot of absorptive volume in the room, as multisub approaches really only cover a limited area with similar freq response per my experience. JSS
  18. maxmercy

    Othorn - HT capable?

    Crossovers done right (section 2.3 and onward): http://www.grimmaudio.com/whitepapers/speakers.pdf But few options for implementation with off-the-shelf products. Here is one all in one box solution: https://www.linea-research.co.uk/asc48/ Its LIR filters are similar to Grimm's solution, except using all IIR filters but with one running in 'reverse' to implement the inverse allpass, hence the time latency depending on Xover Freq. for music, latency is not a problem, and a good AVR will have adjustments to sync audio to video for film. Unless a manufacturer comes up with a better FIR/IIR solution (Powersoft has some terrific options built into their amps), the LIR appears to be a decent and robust product, and even used by Danley and others to control some of their loudspeakers JSS
  19. Mr Allen at HPS4000 has been echoing your sentiments for some time: http://www.hps4000.com/pages/articles_page_.html Even though he considers <27Hz not part of the audible spectrum (he is not wrong depending on frame of reference, hence his choice on subwoofer low corner), he has some solid ideas in those articles, and addresses many of the things we complain about here. JSS
  20. Commercial cinemas, when designed, implemented, and maintained properly provide a great low frequency experience, similar to a well done live concert. The caveat is that the experience does not extend much lower than 25-30Hz. Most impact/slam is between 40-100Hz and even higher in frequency. We are freaks here that can monitor and playback the lowest frequencies, that are often taken out of a mix that is CREATED and is meant to be played on a cinema system (25-30Hz vented, high sensitivity subwoofers). While mixing stages have existed in the past that could monitor into the low teens Hz-wise, most cannot monitor below the high-20s. We sometimes are surprised by mixes that do not exclude the content below 30Hz, as those mixes are a significantly different experience in a properly equipped home theatre. Your friends may simply be used to a certain frequency and level of low frequency experience, and call that 'good'. The EQ mixing described is in the Bass EQ for movies thread on this forum. JSS
  21. maxmercy

    Othorn - HT capable?

    That B&C driver models well in horns, you should do well with the Wreckers. Headroom is a good thing. JSS
  22. The Incredible Hulk is still the track I compare all others to. A close second is the Star Trek reboot, War of the Worlds, and all of the 5-Star films on the first page of the thread. For lots of 20Hz and below energy, Battle:LA is hard to beat as well. JSS
  23. maxmercy

    Othorn - HT capable?

    F20 and THT are very similar. THT is tuned higher (~25Hz), and is a little smaller. Lilmike and I fired up his first F20 build IIRC, and it is capable, but it does need the extra bracing, the first one was not extensively braced if memory serves right, and 1 or 2 outer panels were moving with content. I have not heard the Othorn, though. Tapped horns will generally give you more higher order harmonics due to the position of the driver cone. Running sweeps through sealed and resonant systems does reveal some differences, but after signal shaping, and driven at reasonable levels, the differences get smaller and smaller. Turning up the SPL will make the differences more audible. Ricci is probably one of the most experienced people on earth regarding what differing subwoofer systems sound like with high power sweeps and the differences between them. If you have multiple sealed systems, they can sound very much like a horn, it is just that you need more of them, b/c in a horn, excursion is kept low through the operating band. You need multiple sealed units to accomplish the same SPL as a horn with similar low excursion levels. F20s are big, but not that big, and on their sides may fit under your mains well, and can be finished in a similar fashion. They are not that hard to build, and the drivers for them are not budget breakers, but all of the designs you have listed were carefully designed and if well implemented and integrated, should do very well for your goals. JSS
  24. maxmercy

    Othorn - HT capable?

    Build two of lilmike's F20s (well braced) to get the lowpassed horn sound it seems you desire. If that isn't enough, build two more. A direct radiator or direct radiator + vent will sound different than a front loaded horn, and a tapped horn will sound different than a front-loaded horn where the driver is buried and not near the mouth. My guess is you will like the front loaded horn from the posts above. The F20 will do well. If you need more extension, in the same cabinet volume, look at tapped horns or a hybrid design like the SKHorn. Front loaded folded horns will sound like they have 'cleaner' bass due to the lowpass effect the cabinets have. Only multiple sealed or vented cabs can duplicate it, and even then, not exactly. JSS
  25. maxmercy

    Small yet Mighty. The tale of the 12's

    Nearfield subs done right can change an HT experience. It is VERY easy to overdo it with them, though. JSS
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