Princeton invention delivers 3D sound from ordinary laptop speakers


Edgar Choueiri, a professor of mechanical and aerospace engineering at Princeton University, has developed a way to play true three-dimensional sound recordings over regular loudspeakers, such as those found in televisions and computer laptops. The technique may one day be used to allow 3D televisions to produce lifelike sound and to help people with certain types of hearing impairments locate noises. Segments of the video above incorporate Choueri’s 3D filter to demonstrate the phenomenon. The filter is designed to work with loudspeakers – not headphones – and can be experienced through standard computer speakers. (Make sure the right and left speakers are on the correct sides.) Video by Michael E. Wood.

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25 thoughts on “Princeton invention delivers 3D sound from ordinary laptop speakers

  1. So when doing this in a theater, like a cinema setting, would everyone need to be wearing headphones to feel like they are where the audio engineers want them to feel?

  2. this is kind of an old thing, Pink floyd used this things in a few records and the algorithm for doing this is called CETERA (it’s private). why is the “guy in the other room wearing headphones? wasnt it supposed to work even without them?
    Search for “virtual barbershop”

  3. Will this technique work for more than one person? seem like you have to be positioned precisely.

  4. He talks about its potential to recreate reality, but what excites me is the opportunity to create new realities. A 3D audiospace + fictionalized sounds (i.e. synthesized or digitally altered) = audio fiction, without words, but simultaneously in the most immersive and imaginitive sense. Producers have been chasing this effect for years, but they rarely achieve this level of scientific precision.

  5. @octopuzziy Try turning off any audio enhancements. I had the same problem, until I turned it off.

  6. @greenops Wow, okay. Well that’s pretty cool and makes a lot more sense. Heh, thank you for clarifying, I appreciate it.

  7. @austenwack Yes headphones can do this, but no one records audio the correct way for sound to be truly 3d.
    He is continuing work of others essentially (stuff like this watch?v=8IXm6SuUigI ) He’s taking it further by trying to get this to work without headphones.

  8. so awesome, i wanna start recording music like this! is the a neumann manaquin head?? thats gotta be expensive..

  9. High end 2 channels systems have already had the clarity and soundstaging capabilities to let you do this with standard recordings for the last 40 years or so. Granted you needed to spend a good amount of money on it. I’m speaking of systems roughly starting at the 5K mark and up.

  10. I really, really hate videos like this.

    I’m deaf in one ear. There is no such thing as “3D sound” for me.

    Makes me jealous.

  11. hai this is Dalwinder Singh Sidhu I was very happy to see your video. I did same thing by putting analog processor in front which senses the phse and amplitude and
    deliver 3d sound .That one is under patent . Thanks

  12. this is nothing new. I hate when people talk about a technological advancement and simultaneously talk about their own work, almost insinuating that they developed the technology.