noise

Noise is unwanted sound considered unpleasant, loud or disruptive to hearing. From a physics standpoint, there is no distinction between noise and desired sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound.Acoustic noise is any sound in the acoustic domain, either deliberate (e.g., music or speech) or unintended. In contrast, noise in electronics may not be audible to the human ear and may require instruments for detection.In audio engineering, noise can refer to the unwanted residual electronic noise signal that gives rise to acoustic noise heard as a hiss. This signal noise is commonly measured using A-weighting or ITU-R 468 weighting.In experimental sciences, noise can refer to any random fluctuations of data that hinders perception of a signal.

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  1. thedude

    Question LSX Whine on 3.5m

    I used to have my bluesound set to output 2 rca to 3.5m on the lsx but recently it has started to make like a noise. I've changed the device over for my other bluesound node and does the same tried other cables too. Doesn't happen on optical. Any ideas
  2. mrperrect1976

    Panasonic v550 camcorder motor noise when filming

    hi ive been using the abouve camera for my youtube channel for many years now, and have noticed recently that when in a quite room and getting up close to an item you can here a bitting noise like it trying to focus, this has never happened before so i went on and got a few more of the same...
  3. WilbertA

    Electric Buses

    I don’t use buses but I was parked up the other day with my window down and the noise from a nearby diesel bus was absolutely horrendous. I’m surprised there isn’t some kind of law to limit the noise? Luckily I’d put my window up but when it pulled away the smog coming out the back was also...
  4. DJT75

    Wired earphones with noise cancelling for long-haul flights

    Can anyone recommend some WIRED earphones preferably with noise cancelling for long-haul flights? I've recently sold my SONY cans as they're too bulking to carry around, didn't fit my (small) head very well, made me too hot and got in the way and became uncomfortable when I wanted to doze off on...
  5. F

    Fractal Design North - finally identified what is making pulsing noise

    Hi, So I got a new Fractal Design North case a little while ago, really love it by the way. Anyway after a short while I notice that when its really quiet and the PC is on low load there is a mild pulsing woo woo woo noise coming from the case. Now this occurs all the time but as its only...
  6. edjusted

    Question Samsung Q80BD - color "noise" on entire screen. Hardware defect?

    I have a Q80BD (Costco model # QN85Q80BDFXZA) that I've had for just a couple of months. About 2 weeks ago, the entire screen became "noisy"... It's not an input issue because it shows even on the tv's own menus. I managed to "fix" it by doing an "everything" reset (i.e. I tried to reset just...
  7. D

    Please Rec. noise cancelling + music

    I'm looking for modestly priced headphones for music (generally jazz, instrumental, classical) and noise cancelling attributes for flights, so comfort is a priority too. In the sub €100 range ideally. TIA for any suggestions.
  8. jrw1982

    Soundcore by Anker Liberty 4 NC Wireless Noise Cancelling Earbuds - £59.99 @ Amazon

    Browsing the Prime day deals and saw these - Not often the NC versions are on offer. Got some of these, mainly for Teams calls when I am in noisy data centres as my Jabra's struggle with the ambient noise. Reduce Noise By Up to 98.5%: Liberty 4 NC noise cancelling earbuds have a high...
  9. M

    TV started making white noise

    Hi all, I don't know if it's done it since I've had it or not but tonight I noticed my Panasonic Oled LZ1000 just started making white noise type sound when it's streaming content. It's seems like everytime it needs to stream/download more info it makes the noise. During BBC iPlayer on UHD it...
  10. K

    Question Volume control doesnt work and static noise on the left channel.

    I have bought a used Music Fidelity A3 integrated amp today. But the volume doesnt work and there is static on the left channel. Apperantly the unit took a dive at some point but besides some dents to outside it seems very clean inside. Can anyone tell me how i might solve this please?
  11. Saldawop

    Sudden noise appeared on my car

    2013 Seat Ibiza. Been fine. Got in it this morning and as I was driving out of my parking spot I heard a noise. Like a spring twanging. Only happens at slow speed such as parking or pulling off. Forward or reverse. Don’t know if coincidence but last night was driving in torrential rain, hit a...
  12. L

    Audyssey wrong subwoofer distance due to projector noise

    Hi, I've been reading this forum for some time now and it helped me in many ways, maybe this information will help someone else too ;) I recently have found that my subwoofer distance in the Audyssey was way too close at 1.5 instead of 6.5 meter, so I connected the mic and ran the Audyssey...
  13. _Dragon_

    Headset for sensitive ears

    I will need a decent headset but not to expensive, it just for teams meetings etc.. there is alot of background noise as new houses are being built so some noise cancelling ones would be ideal. I do have sensitive ears so i can't have ear buds in my ears. I did look at the Poly Sync 10...
  14. Marius777

    Sound cuts out with short loud hissing noise.

    Hi, guys! I've got an Onkyo SR607 that has been failing gradually lately. The sound cuts out with a loud hissing noise and then comes back on automatically after a while. It is not not the common problem with the DSP chip, as I am not using HDMI. Only optical and analog input. The amount of...
  15. F

    UPS Online, Voltage Conditioner or Voltage Stabilizer ?

    Good morning good people. I have a problem which is the following: My voltage is normally 235V during the day, but at night in my area it drops to 210 or less sometimes, what happens is that my amplifier ( ATOLL IN200 ) starts to create noise / distortion in the highs and medium type metallized...
  16. OneSon

    Sky Q box - hard drive noise

    I have a brand new 2TB Sky Q box (UHD, silver trim, external power brick). The hard drive makes a quiet but irritating noise (sounds a bit like dripping water). Engineer says this is normal and all the 2TB UHD boxes do this. Is there any wisdom on the forum about which boxes tend to be quieter...
  17. F

    Denon AVR-X1700 buzzing noise

    I have just put in a Denon avr-x1700 and whilst watching Sky, there is an annoying buzzing that appears from nowhere which only seems to affect the front three speakers. The noise goes if I change channel though does return after a while. Never experienced this with the soundbar or many years...
  18. B

    Headset recommendation for office

    HI, i am looking for a good headset to take Teams calls etc, but one where the mic blocks the background noise from office. any decent ones about? looking to spend maybe £60-£100
  19. Scott Wright

    Bargain Sony WF-1000XM4 Noise Cancelling Wireless Earbuds Reduced from £250 to £149. Expires 12/07/23 @ 23:59

    Sony WF-1000XM4 Truly Wireless Noise Cancelling Headphone - Up to 24 hours battery life -Optimised for Alexa and Google Assistant-with built-in mic for calls, Black MSRP £250 and Amazon's normal price: £178.07 Prime day deal: £149 Only available for Amazon Prime members - If you're not...
  20. Scott Wright

    Bargain Expired Bose QuietComfort 45 Bluetooth Noise-cancelling Headphones Reduced from £319.95 to £178.95. Expires 11/08/23 @ 23:59

    Bose QuietComfort® 45 Bluetooth wireless noise cancelling headphones with microphone for phone calls - Triple Black MSRP £319.95 and Amazon's normal price: £319 Prime day deal: £178.95 Here is a link to the original product listed on the Bose website for £319.95 Only available for Amazon...
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