5 ms·

Wouldn't it be really neat to apply this to HD movie sequences, and hear what the sounds on the set and the voices of actors were like pre-production? And how u

Wouldn't it be really neat to apply this to HD movie sequences, and hear what the sounds on the set and the voices of actors were like pre-production? And how unreal some of the sounds must have turned out with all the visual tweaking that happens in production?

panzi 12y ago
I had the exact same idea.
- panzi 12y ago
  Why did I got down voted for that? It's true. Proof: http://www.crackajack.de/2014/08/04/visual-microphone-audio-extracted-from-vibrations-of-a-potato-chip-bag/#comment-1526903732 http://www.crackajack.de/2014/08/04/visual-microphone-audio-...
  - ctdonath 12y ago
    Because posting "I had the exact same idea" without further interesting commentary is uninteresting.
    - panzi 12y ago
      I only down vote when something is demonstrably wrong or offensive. I thought that's how everyone is doing it, so I wondered what could I have written that was wrong or offensive?
      - ctdonath 12y ago
        Downvotes also apply to "demonstrably content-free". BTW: not everyone uses exactly your own personal guidelines. BTW: HN Guidelines include "Resist complaining about being downmodded. It never does any good, and it makes boring reading."
guelo 12y ago
You missed the part where the video's frames per second has to be higher than the audio frequency.
- iLoch 12y ago
  You missed the part where they proved that this is not required.
  - guelo 12y ago
    When Hollywood isn't still using 24fps film cameras they're certainly not using consumer-grade camera sensors.
    - panzi 12y ago
      So maybe the only option would be The Hobbit?
      - nitrogen 12y ago
        The Hobbit still most likely doesn't use rolling shutter sensors, but I'm willing to be proven wrong.
        panzi 12y ago
        Ah yes, that's probably true. I meant because of the higher frame rate.
    - anigbrowl 12y ago
      I know a couple of Hollywood movies that were shot on consumer gear, eg http://www.usa.canon.com/app/html/HDV/XHA1/case_study_06.shtml http://www.usa.canon.com/app/html/HDV/XHA1/case_study_06.sht... For this particular film the rather characteristic look of digital video is appropriate, whereas most productions would rather shoot with much fancier gear. But you'll find plenty DSLRs working on film sets these days, and you will see more and more convergence as high-quality sensors become a commodity. Black Magic have a pocket camera that delivers 13 stops of dynamic range.
xwintermutex 12y ago
I would expect that you need to acquire the raw footage; post processing (and compression) will ruin the data.
anigbrowl 12y ago
I record the dialog for your movies. Aprt from obvious sound effects like Darth Vader voices or so, actors' dialog is changed as little as possible during post production. It's not heavily EQed or comrpessed, because that would mean a corresponding change to the room tone and background noise, which would then fluctuate unnaturally as you went back and forth between the participants in a scene. In scenes with a lot of movement actors' voices sometimes sound a little deeper than in real life, because they are fitted with a tiny wireless microphone, and there's usually some resonance from the chest cavity. But generally what you hear is very close to how the person actually sounds - although their accent or inflections may be adopted for the purposes of their role. This can be a bit jarring; I've worked with method actors who maintain their screen accent at all times during production until the film is done, so when they switch back to their regular accent after a month or so it's extremely disorienting, since I've been listening to them in my headphones day in day out for weeks, and am paid to pay as much attention to their voices as the cinematographer pays to their faces. Some actors go even farther in support of their public image. Rock Hudson had a somewhat high voice that producers deemed incompatible with his looks, so during production he would warm up every day by shouting for 20 minutes and gargling with orange juice to inflame his vocal cords, and of course he smoked a lot too. What actors will do to themselves in pursuit of screen presence far exceeds anything I've ever been asked to do in post. Editing dialog is more than enough work without trying to sculpt people's voices.
- Chronic29 12y ago
  Cool story
- keerthiko 12y ago
  Thanks a lot for that insight. I will assume you work primarily for Hollywood with that description. It is interesting to hear about the behind-the-scenes from film industries in different parts of the world. In the Indian film industry (maybe not so much Bollywood, but more of the local ones like Tamil, Malayalam, etc) there's a LOT more post being done. Some entire Malayalam films have dubbed voices (for the original movie). Not to mention nearly every song track does not have the singing recorded during the shooting of the dance sequences. So those sets and actor voices I would bet would be completely different.

panzi 12y ago

I had the exact same idea.

panzi 12y ago
Why did I got down voted for that? It's true. Proof: http://www.crackajack.de/2014/08/04/visual-microphone-audio-extracted-from-vibrations-of-a-potato-chip-bag/#comment-1526903732 http://www.crackajack.de/2014/08/04/visual-microphone-audio-...
- ctdonath 12y ago
  Because posting "I had the exact same idea" without further interesting commentary is uninteresting.
  - panzi 12y ago
    I only down vote when something is demonstrably wrong or offensive. I thought that's how everyone is doing it, so I wondered what could I have written that was wrong or offensive?
    - ctdonath 12y ago
      Downvotes also apply to "demonstrably content-free". BTW: not everyone uses exactly your own personal guidelines. BTW: HN Guidelines include "Resist complaining about being downmodded. It never does any good, and it makes boring reading."

guelo 12y ago

You missed the part where the video's frames per second has to be higher than the audio frequency.

iLoch 12y ago
You missed the part where they proved that this is not required.
- guelo 12y ago
  When Hollywood isn't still using 24fps film cameras they're certainly not using consumer-grade camera sensors.
  - panzi 12y ago
    So maybe the only option would be The Hobbit?
    - nitrogen 12y ago
      The Hobbit still most likely doesn't use rolling shutter sensors, but I'm willing to be proven wrong.
      - panzi 12y ago
        Ah yes, that's probably true. I meant because of the higher frame rate.
  - anigbrowl 12y ago
    I know a couple of Hollywood movies that were shot on consumer gear, eg http://www.usa.canon.com/app/html/HDV/XHA1/case_study_06.shtml http://www.usa.canon.com/app/html/HDV/XHA1/case_study_06.sht... For this particular film the rather characteristic look of digital video is appropriate, whereas most productions would rather shoot with much fancier gear. But you'll find plenty DSLRs working on film sets these days, and you will see more and more convergence as high-quality sensors become a commodity. Black Magic have a pocket camera that delivers 13 stops of dynamic range.

xwintermutex 12y ago

I would expect that you need to acquire the raw footage; post processing (and compression) will ruin the data.

anigbrowl 12y ago

I record the dialog for your movies. Aprt from obvious sound effects like Darth Vader voices or so, actors' dialog is changed as little as possible during post production. It's not heavily EQed or comrpessed, because that would mean a corresponding change to the room tone and background noise, which would then fluctuate unnaturally as you went back and forth between the participants in a scene. In scenes with a lot of movement actors' voices sometimes sound a little deeper than in real life, because they are fitted with a tiny wireless microphone, and there's usually some resonance from the chest cavity. But generally what you hear is very close to how the person actually sounds - although their accent or inflections may be adopted for the purposes of their role. This can be a bit jarring; I've worked with method actors who maintain their screen accent at all times during production until the film is done, so when they switch back to their regular accent after a month or so it's extremely disorienting, since I've been listening to them in my headphones day in day out for weeks, and am paid to pay as much attention to their voices as the cinematographer pays to their faces. Some actors go even farther in support of their public image. Rock Hudson had a somewhat high voice that producers deemed incompatible with his looks, so during production he would warm up every day by shouting for 20 minutes and gargling with orange juice to inflame his vocal cords, and of course he smoked a lot too. What actors will do to themselves in pursuit of screen presence far exceeds anything I've ever been asked to do in post. Editing dialog is more than enough work without trying to sculpt people's voices.

Chronic29 12y ago
Cool story
keerthiko 12y ago
Thanks a lot for that insight. I will assume you work primarily for Hollywood with that description. It is interesting to hear about the behind-the-scenes from film industries in different parts of the world. In the Indian film industry (maybe not so much Bollywood, but more of the local ones like Tamil, Malayalam, etc) there's a LOT more post being done. Some entire Malayalam films have dubbed voices (for the original movie). Not to mention nearly every song track does not have the singing recorded during the shooting of the dance sequences. So those sets and actor voices I would bet would be completely different.