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High-quality OLED displays now enabling integrated thin and multichannel audio
61–70 of 81 posts
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#62Would the vibration be detectable via touch? It would be wild to integrate this into haptics
A laptop improvement I'd love would be a haptic keyboard. You could then make the entire laptop waterproof as well as do keyboard reconfiguration for certain tasks.
I always though Apple's Touch Bar was some kind of entry point into that idea but it wasn't, wasn't useful, and just died.
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#63The talk about pixels is misleading. The research paper doesn't mention pixels. They attached a 3x3 array of piezoelectric elements (roughly 3 cm in diameter each) behind a 13" OLED panel (one picture also shows a 5x4 array), using a sturdy frame structure to minimize interference of acoustic vibrations between the 9 (or 20) elements of the array. Not to say that this isn't interesting, but it’s not display pixels em…
Right.
It's a way of putting speakers behind a display, which will probably be useful. This may improve bass response in laptops, because the speaker area is larger.
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#64Seems somewhat niche due to physics. When you are ten feet away from a screen (or even three), you can scarcely distinguish between audio emanating from the upper-left “pixel/voxel” (to give a new meaning to an old word) and from the bottom-right, let alone from two adjacent locations.
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#65Seems somewhat niche due to physics. When you are ten feet away from a screen (or even three), you can scarcely distinguish between audio emanating from the upper-left “pixel/voxel” (to give a new meaning to an old word) and from the bottom-right, let alone from two adjacent locations.
If you get enough, you might be able to do some really interesting things using it as a phased array
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#66Seems somewhat niche due to physics. When you are ten feet away from a screen (or even three), you can scarcely distinguish between audio emanating from the upper-left “pixel/voxel” (to give a new meaning to an old word) and from the bottom-right, let alone from two adjacent locations.
Not niche at all. You could have a phone for example that plays sounds from areas of the screen where they originate. Key presses, buttons, notification pop ups, etc.
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#67That’s super impressive. I guess that would work for a notification speaker. But for full sound I have doubts about the low frequencies. I would assume you would need a woofer anyway in a home setting.
You could always have a separate speaker for low frequencies. Low frequency sound tends to be perceived with less of a directional component, so if you have nice directionality of the highs and a single source for the lows, that's pretty acceptable. Removing the need to handle highs might make it easier to put together a speaker for the lows in the confines of a modern flat screen.
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#68Seems somewhat niche due to physics. When you are ten feet away from a screen (or even three), you can scarcely distinguish between audio emanating from the upper-left “pixel/voxel” (to give a new meaning to an old word) and from the bottom-right, let alone from two adjacent locations.
Not niche at all. You could have a phone for example that plays sounds from areas of the screen where they originate. Key presses, buttons, notification pop ups, etc.
You missed (or didn't address, at any rate) my point. For a phone where all audio channels are in between both ears (or even worse, held off to the right/left of both ears) with only a minute difference in the angle of the arc to each of the binaural inputs, convince me that you can reasonably distinguish between sounds emanating from different locations (facing the same direction - not at all like a speaker pointing out the side of each phone!!) at a rate statistically distinguishable from chance.
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#69Seems somewhat niche due to physics. When you are ten feet away from a screen (or even three), you can scarcely distinguish between audio emanating from the upper-left “pixel/voxel” (to give a new meaning to an old word) and from the bottom-right, let alone from two adjacent locations.
I think you're trying to make an argument similar to those arguing against "retina" displays, i.e. there is some minimum perceptual angular resolution for sound, so information finer than that is pointless? I think you're either underestimating the perceptual resolution or assuming a very small screen at a large distance.
I think that kind of resolution is good enough to overlap a lot of task focused screen fields of view. I have experienced a pretty clear "central" sound stage within 30-45 degrees or so with regular stereo speakers. That field can imply a lot of subtle positioning within it, not even considering wild panning mixes. I'm talking about the kind of realistic recording where it feels like a band in front of you with different instruments near each other but not colocated, like an acoustic ensemble. Obviously you cannot shrink this down to a phone at arm's length or a small embedded control screen and still have the same amount of spatial resolution crammed into a very narrow field.
When I sit with a 14" laptop at a normal distance for typing, it is also easy to distinguish tapping sounds along the screen. I just did a blind test by closing my eyes and having my wife tap the screen with a plastic pen. The interesting question to me, though, is whether that is just perception via the binaural sense, or really incorporating some intuition about the screen's structure. It's response to a tap does clearly vary by distance from bezels and hinges...
Re: High-quality OLED displays now enabling integrated thin and multichannel audio
#70Seems somewhat niche due to physics. When you are ten feet away from a screen (or even three), you can scarcely distinguish between audio emanating from the upper-left “pixel/voxel” (to give a new meaning to an old word) and from the bottom-right, let alone from two adjacent locations.
I think you're trying to make an argument similar to those arguing against "retina" displays, i.e. there is some minimum perceptual angular resolution for sound, so information finer than that is pointless? I think you're either underestimating the perceptual resolution or assuming a very small screen at a large distance. I think that kind of resolution is good enough to overlap a lot of task focused screen fields of…
Impressed that you took the time to run a quick test. Spatial compression is a hard problem though, the most expensive sound bars are easily beat by a cheap 2.1 setup. Phones are (mostly) still mono output even though a speaker out the top and bottom (perpendicular to the viewing angle) would be a win for watching videos in landscape, probably because the improvement wouldn’t be noticeably appreciated (enough to be economically feasible, anyway).
Interesting research all the same, of course!