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It's actually a not unpleasant brown noise-like sound. At least that's how it comes out of my hifi. Over bluetooth and after YouTube compression so perhaps high

by blfr 9y ago

It's actually a not unpleasant brown noise-like sound. At least that's how it comes out of my hifi. Over bluetooth and after YouTube compression so perhaps high fidelity isn't the right term.

throwaway613834 9y ago
I'm not sure... for me the unfiltered version was annoying but bearable for a bit... but I could see getting driven mad by it after a while. The filtered version was so bad that it almost made me wonder if I'm going to damage my ears, so I stopped listening to it halfway. I was using decent BT headphones so I'm not sure if that makes any difference... it may depend on how decent your speakers are at playing 30-40 Hz. (Side note: Does BT audio do some kind of lossy compression? Why is it relevant that you mentioned it here?)
- blfr 9y ago
  Exactly, BT audio uses lossy compression. There are several codecs available but I'm on Linux and the receiver is pretty old so it's probably the weakest of them: SBC. The filtered sound is pretty bad, yes, dread inducing.
  - throwaway613834 9y ago
    Thanks! I had no idea.
    - throwaway613834 9y ago
      Update: For what it's worth, I just tried it with wired headphones (again, a decent pair) and they don't sound different as far as I can tell, so BT compression doesn't seem to be having any observable effects.
- tzahola 9y ago
  “Does BT audio do some kind of lossy compression?” Yes. Bluetooth audio is never lossless. Proprietary Bluetooth codecs like Sony LPAC or Qualcomm AptX come close to being lossless, but they’re still lossy.
- Arn_Thor 9y ago
  Listened to the recording (via Bluetooth) on headphones known for their good reproduction of low hertz sound, and the original recording was downright uncomfortable for even a few seconds
kortex 9y ago
I'm wearing over-ear monitors and the rumble is very slightly unsettling in an uncanny way. And that's with all the highpass of the recording. Real life has all that sub 20 Hz that most mics can't pick up. I can see how this could easily drive someone bonkers

by blfr 9y ago

It's actually a not unpleasant brown noise-like sound. At least that's how it comes out of my hifi. Over bluetooth and after YouTube compression so perhaps high fidelity isn't the right term.

throwaway613834 9y ago

I'm not sure... for me the unfiltered version was annoying but bearable for a bit... but I could see getting driven mad by it after a while. The filtered version was so bad that it almost made me wonder if I'm going to damage my ears, so I stopped listening to it halfway. I was using decent BT headphones so I'm not sure if that makes any difference... it may depend on how decent your speakers are at playing 30-40 Hz. (Side note: Does BT audio do some kind of lossy compression? Why is it relevant that you mentioned it here?)

blfr 9y ago
Exactly, BT audio uses lossy compression. There are several codecs available but I'm on Linux and the receiver is pretty old so it's probably the weakest of them: SBC. The filtered sound is pretty bad, yes, dread inducing.
- throwaway613834 9y ago
  Thanks! I had no idea.
  - throwaway613834 9y ago
    Update: For what it's worth, I just tried it with wired headphones (again, a decent pair) and they don't sound different as far as I can tell, so BT compression doesn't seem to be having any observable effects.
tzahola 9y ago
“Does BT audio do some kind of lossy compression?” Yes. Bluetooth audio is never lossless. Proprietary Bluetooth codecs like Sony LPAC or Qualcomm AptX come close to being lossless, but they’re still lossy.
Arn_Thor 9y ago
Listened to the recording (via Bluetooth) on headphones known for their good reproduction of low hertz sound, and the original recording was downright uncomfortable for even a few seconds

kortex 9y ago

I'm wearing over-ear monitors and the rumble is very slightly unsettling in an uncanny way. And that's with all the highpass of the recording. Real life has all that sub 20 Hz that most mics can't pick up. I can see how this could easily drive someone bonkers