Recent comments in /f/gadgets

turbo_nudist t1_iy3z878 wrote

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.

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cboogie t1_iy3y6mc wrote

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.

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djk29a_ t1_iy3w4iq wrote

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.

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Tyler_Zoro t1_iy3uy9k wrote

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.

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MyNameIsRay t1_iy3umt4 wrote

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".

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Redeem123 t1_iy3td9o wrote

> 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.

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