Recent comments in /f/gadgets
turbo_nudist t1_iy3z878 wrote
Reply to comment by [deleted] in This is the first house 3D-printed from bio-based materials - The new technology could come in at a key moment. by speckz
well, that’s a helpful attitude guaranteed to drive change.
if these methods become way cheaper, companies will be forced to change to them, or new companies will pop up to use the opportunity, leaving them behind. capitalism absolutely breeds innovation. monopolies do not.
[deleted] t1_iy3ywgq wrote
Reply to comment by TrippTrappTrinn in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
[removed]
turbo_nudist t1_iy3yu0d wrote
Reply to comment by Enoan in This is the first house 3D-printed from bio-based materials - The new technology could come in at a key moment. by speckz
you’re correct on land being the most expensive part in most cases, but what urban area are you in where houses have half an acre of land?? i don’t think that’s considered urban
Elevenst t1_iy3yn39 wrote
Reply to This is the first house 3D-printed from bio-based materials - The new technology could come in at a key moment. by speckz
>"The entire house measures 600 square feet..."
That's not a house. That's half an apartment.
thefartographer t1_iy3ya1m wrote
Reply to comment by wrench_nz in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
Cuz you're not in the car
cboogie t1_iy3y6mc wrote
Reply to comment by [deleted] in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
You seen the project where you use the pink foam board insulation and a basic Dayton transducer on it?
Kinda look dumb and it seems like you need the right room and space but apparently they stack up pretty well against a pretty expensive cabinets and have a pretty flat frequency response.
I watched a YT vid where a very skeptical dude built and tested them and he was very surprised in the results.
Allidoischill420 t1_iy3xl3l wrote
Reply to comment by SMPhil in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
The dead passenger with a speaker inside him?
goodnitegirl-666 t1_iy3xjpd wrote
Reply to comment by Enoan in This is the first house 3D-printed from bio-based materials - The new technology could come in at a key moment. by speckz
Why are houses in downtown areas w no yards so expensive then
[deleted] t1_iy3wyc9 wrote
skinnah t1_iy3wvwi wrote
Reply to comment by TrippTrappTrinn in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
The guy on Tech Ingredients has some good videos on exciters. https://youtu.be/CKIye4RZ-5k
djk29a_ t1_iy3w4iq wrote
Reply to comment by [deleted] in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
There’s hopefully some feedback mechanisms for tuning the signal for better fidelity and giving some tips to users for better frequency response options. Hell, a calibration system that guides users to put the transducers on different surfaces and places would be pretty neat if you ask me. Something on the floor of a car or the dash would work better for sound than windows, especially because rolling the windows down would mean no more speakers.
Kytyngurl2 t1_iy3w13o wrote
Reply to This is the first house 3D-printed from bio-based materials - The new technology could come in at a key moment. by speckz
Any pictures of the inside? Curious about how insulating the walls are, as climate control can be expensive. Then again, the place is small and the walls look okayishly thick…
TunaOnWytNoCrust t1_iy3vfkw wrote
I hope they're built well enough that I can yank them out of trashed cars in 15 years at my local U-Pull.
Tyler_Zoro t1_iy3uy9k wrote
Reply to comment by PeaceFar9770 in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
It's not the pitch that is the concern, so much as the "shape" of the sound.
Panels can be turned into incredibly good speakers (example) but that's when they are flat. The surfaces in a car are going to created much more complex wave-fronts because they aren't flat.
I presume that what LG is showing off is some sort of system that compensates for this. I wouldn't be perfect, but it could potentially be good enough to improve on the speakers you can otherwise get in cars.
Of course, 17 year olds will use it to vibrate the rivets out of their cars because that's what they do.
imakesawdust t1_iy3unzr wrote
Reply to This is the first house 3D-printed from bio-based materials - The new technology could come in at a key moment. by speckz
I'm curious how it stands up to the elements and storms. What will it look like in 10 years? And I'm curious about the insulation. They say "insulated with wood". I presume they mean blown cellulose or somesuch?
MyNameIsRay t1_iy3umt4 wrote
Reply to comment by PeaceFar9770 in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
Haven't heard these in particular, but I have used a bunch of transducers that turn solid panels into speakers (Clark Synthesis/Aurasound/multiple Dayton transducers, and the bass-specific IBeams and Buttkickers), and they all have the same issue.
The material you stick it to has it's own absorption/reflection/resonance properties, which become audible when you use it as a speaker. You can easily tell if it's attached to metal, plastic, wood, or glass. It doesn't sound "like the panel is a speaker", it sounds like "a speaker behind the panel".
For bass, thicker/stiffer materials (or those with less surface area) need more power, which means it effectively reduces the output when used with the same power. Same transducer, same signal, will have wildly different response curves if attached to a side window vs a rear window, or a window vs the dashboard.)
For highs, basically everything absorbs high frequency sound (that's why you tend to only hear low frequency bass outside a loud car or club). No matter what, the high end is neutered, they all lack the "sparkle".
farox t1_iy3ufg7 wrote
Reply to comment by Enoan in This is the first house 3D-printed from bio-based materials - The new technology could come in at a key moment. by speckz
Oh yeah. I also think r1 is an abomination. Mostly for zoning reasons though. Especially in North America there is more than enough land.
ImGCS3fromETOH t1_iy3u9zc wrote
Reply to comment by caiusto in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
That's just what I need while I'm driving my car in traffic. Sounds unexpectedly coming from behind me.
mekkasheeba t1_iy3u8qr wrote
I already have speakers built-in to my car, though.
implicitpharmakoi t1_iy3u78v wrote
Reply to comment by PeaceFar9770 in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
My old phone had it, sounded great.
Redeem123 t1_iy3td9o wrote
Reply to comment by [deleted] in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
> I think it started with the acceptance of digital lossy audio formats, making its way into early bluetooth protocols, and it all went downhill from there.
You know what we had before Bluetooth and streaming?
- Cassette players
- Shitty plastic walkman headphones
- AM/FM radios
- Scratched records
- FM transmitters for your car
- Tiny desktop speakers bundled with a computer
- Laptop speakers
- Low quality burned CDs
High quality listening is cheaper and more accessible than it's ever been. Listening to Spotify over bluetooth on a stock car stereo is far better than the radio ever was, and that's without even getting into the convenience factor.
The truth is that people have never cared at large about audiophile level quality. The only difference now is that the baseline will get you far enough for most listeners, while you used to have to take some amount of effort to get to that level.
COmarmot t1_iy3t4ya wrote
But cars have speakers already….
troubledwatersofmind t1_iy3svk9 wrote
Reply to comment by UponMidnightDreary in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
#blessed
metalefty t1_iy3sork wrote
I had these back in the 80's.
swettm t1_iy4014p wrote
Reply to comment by caiusto in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88
These types of features (spatial audio, HRTFs, beamforming, etc.) are actually pretty straightforward and well known techniques, and like machine learning, we're just now getting to a point where we have the hardware to properly implement them.