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.

View More On Wikipedia.org
  1. T

    50ish inch Hitachi making noise when OFF

    Hi, I have this Hitachi plasma that makes like a very brief crackle when off. This does not come through the speakers, does not. This sound last about half second or less, one little crackle once every two hours or so. TV works great though. It's not very loud and not a huge deal. I was just...
  2. M

    Denon AVR 3801 Powers On But Only Plays Static Noise

    Denon AVR 3801 Powers On But Only Plays Static Noise. Powers on correctly with relay clicks and everything as described on a working unit but once startup procedure is done it only plays static noise on all active channels. Static noise is consistent with or without any input signal and is not...
  3. E

    Question How to keep sound out?

    I just bought a new home with a small theatre room (10’ x 15’). I have a 7.1 system + JVC projector going in, as well as some room acoustic panels. When I bought the house, the sales person told me the media rooms were sound-proofed. It’s not! Apparently I had to opt for that. Air conditioner is...
  4. Iant206

    Tweeter noise ?

    Hi guy’s. I am new here so have a lot to learn. I bought a new pair of ProAc DT8 response about 9 months ago and had an issue two weeks ago in that the sound in left speaker was getting slightly fuzzy in the upper mids / treble area, spoke to my dealer and they said take both down to the shop so...
  5. A

    White Noise/Hissing noise through speakers

    Hi folks, Not been on here for a while due to a few hi-fi disappointments including some bad purchases and the blowing up of my Roksan Power amp a week after I bought it and had it fixed! Nightmare. So, I now have speaker hiss, almost like white noise, not quite 100Hz. Never experienced this...
  6. R

    Motor noise on Sansui cassette deck

    My Sansui SC1330 cassette deck, faithful friend for 44 years, has suddenly developed a very loud noise on one channel. It sounds like motor noise, synchronous, it maxes out the channel. I've changed the Play leads to the amp, no difference. It's there on existing cassettes, and if I record...
  7. Rookies

    PS5 help please

    How long should games like cod or far cry take to install and update? Not sure if it takes longer on ps5 than Xbox series x
  8. R

    Fyne sub buzzing noise

    I'm running two fyne f3.12 subs in my set up. Only recently got my system up and running and there is a pretty annoying buzz of one of the subs it's not there when the system turns on first but it will appear eventually during use. I've switched the cables and power/socket location into the sub...
  9. alainrj

    Excessive noise and vibrations when playing CDs on Audiolab 7000 CDT

    Am hearing loud rumbling noises and feeling excessive vibrations coming from my new Audiolab 7000 CDT when playing CDs. The effect is worst on Track 1 of an affected CD and gradually lessens and disappears as the CD is played. About 100 CDs are affected in total. I didn't experience this...
  10. Uncle Toad

    Yamaha RX-V481 - Loud burst of white noise when TV changes channel

    Hi folks This is a weird one - My Samsung au9007 50" tv is connected to my Yamaha RX-V381 receiver through the usual HDMI connection. All works fine EXCEPT when I change TV channel, or the programme swaps to adverts. I then get a brief ear-splitting burst of white noise through my speakers...
  11. A

    Microlab Solo 9c Tweeter Noise

    Microlab Solo 9C Tweeter Noise Dear friends, audio enthusiasts, I am having since a long time a noise coming out from my Tweeter speaker of a model Microlab Solo 9C. http://microlab.com/en/catalog/stereosystem/mains-connection/wired/solo-9c/ I would describe it as a low wind, but it's...
  12. adann

    Question Screeching noise from sub

    Was just watching TV where I started hearing a screeching noise. Eventually realised it was coming from my Cambridge Audio Minx x201. Even if the TV is off the noise will continue until unplugged where it will then stop a few seconds later. Any ideas what could be causing this?
  13. Rocketrazor

    Question Pre Out Amp Query - Pop and Noise from Speakers on Pre Amp is on

    Evening All, I have a Marantz SR7015 and audizio AD200A (link below if it works) Audizio AD200A 2-Channel HiFi Stereo Amplifier with Bluetooth Streaming and Subwoofer Output - 200W Aluminium I'm using the AD200A to power the rear atmos ceiling speakers. When I first cabled it all up I had a...
  14. F

    Marantz Cinema 70s click noise

    I just recently installed a Marantz Cinema 70s connected to an Emotiva amp. The receiver is in pre-out only mode for all channels. I have noticed as I turn up the volume I can hear a single audible click come from the receiver at around the 50 mark. It doesn’t click every time I drop the volume...
  15. GalacticaActual

    Blower Motor Squeal

    HI All I have a squealing noise coming from my Blowers on my ford focus. It doesn't happen all the time, usually after the car has warmed up, then it starts. Also very weirdly, when the car turns right, (around a round about for example,) it stops... then comes back when driving straight. The...
  16. B

    Help - Noise on Pioneer VSX-LX304

    Hello! Please be gentle. I'm not super techy when it comes to this stuff, so there may be a simple solution I'm missing. Also, if you give me too detailed an explanation, I may have no idea what you're talking about I recently noticed white noise/hum coming out of my speakers, even when my...
  17. B

    Panasonic GT50 clicking noise

    My old GT50 which is on the bedroom wall has in the last couple of days on getting up in the morning i've noticed the red standby light hasn't been on. I then press the power buttom on the tv and nothing happened, press it again and the red light comes on. I then wake up this morning, no red...
  18. S

    Philips TV thermal noise and quality issues

    Hi I have just bought a 43PUS8518/12 and my dear it has so many flaws!! First of all: it emits a series of thermal sound like tic toc and cracks!! This sound is every 10-15 minutes. It is very loud and annoying. It seems as thermal expansion of something inside the TV. Then, the TV stands...
  19. C

    Is there a noise cancelling system without ear contact?

    Hi I'm trying to find out if there's a noise cancelling system which doesn't require physical contact with the ears. For example a speaker placed just off the ears so they could be used for long term use when in a fixed seat. I currently play music through over the ear headphones to drown out...
Back
Top Bottom