I work in a data center, and when amongst the racks the noise is pretty tremendous - gotta lean in towards the person you're talking to just to hear them, ear plugs are a must for any long-term work if you don't have other coverage. So I'm looking for good headphones in the 100-150 dollar range that have either active or very effective passive noise cancellation/reduction. The restriction - no earbuds, I hate 'em. Over-ear cans are the way to go. The Sennheiser 280 is a classic standby, but I can't find any specifics on how much white-noise type sound they block. The 429/439s look pretty swank as well, but once again, can't find any details beyond nebulous claims of 'sound isolation'. Anyone in a similar noise environment have recommendations?
posted by FatherDagon
on Jan 14, 2014 -
Help me understand the difference between 28dB, 38dB and 48dB.
I'm thinking about buying a fridge, and the fridges I'm considering have noise levels ranging from 28dB to 47dB (according to the latest fridge assessment in Choice
Fridges with a 28dB noise level rating are too expensive for me, though, so I'm trying to find something I can afford but which won't annoy me too much (I'm sensitive to the noise of a buzzing fridge). What I can afford tends to be somewhere in the mid-30s dB range.
But it's no use going into a noisy showroom and trying to properly gauge how a fridge will sound in my quiet home. So I'm wondering if there's a way I can test these different noise levels at home before I buy, to see what's the difference.
posted by paleyellowwithorange
on Nov 21, 2013 -
I have a sound recording that ideally I would like to remove the background sound from. My recording has unfortunately captured the unwanted sound of an episode of Doctor Who being played from a TV in the background. Is there a way to filter that out? [more inside]
posted by polymodus
on Nov 19, 2013 -
Even with the ringer set on maximum volume, I tend not to hear my phone ringing when I'm out walking on a busy London street. I'd like a ringtone that will be audible over traffic noise, but not be earsplitting or annoying when I'm indoors. Are there any acoustic properties (other than sheer loudness) that I should look for in a ringtone to help it stand out against a background of car engines and other street noise?
posted by yankeefog
on Sep 30, 2013 -
Please help me get rid of frustrating audio interface noise! I have a new pc and a presonus firestudio mobile audio interface. When I plug in the firestudio via firewire there is a pulsating sound and some buzzing sound. [more inside]
posted by niruniru
on Nov 30, 2012 -
(Electronics|Stereo)filter: What is causing this infuriating noise in my preamp and how do I fix it? Links to sound files and long list of symptoms in extended. [more inside]
posted by strangecargo
on Jan 15, 2009 -
I have an old bose acoustic wave radio serving as my PC speakers. Powered but not connected to the computer the speakers produce a gentle hissing. When plugged in (via a 3.5mm to RCA cable) I hear noisy static -- not pure white noise, far more annoying -- and an intermittent whine that changes pitch depending on what's going on in the computer. For example, if the processor is under greater than 30% load all the noises go away. This does not happen with headphones so I think it is some combination of noise in the computer circuits and the amp built into the radio. My question is how do I make it stop? [more inside]
posted by Grod
on Feb 16, 2008 -
How do I tackle feedback with a piezo pickup on a very small instrument (ukulele), running it through guitar amps or PA systems? [more inside]
posted by tmcw
on Oct 4, 2007 -
At a recent lecture, I taped from the soundboard & from some microphones. I meant to record these to separate channels, but I accidentally left it in low quality mode - mono, 22khz. It sounds like video got thrown into the mix. Can I salvage the audio? [more inside]
posted by Pronoiac
on Jul 15, 2007 -
Hi there, I am doing an honours project on the effects of boat noise on dolphin communication and my supervisor had this idea of using compression to analyse this.
He basically suggested that we record dolphin vocalizations in the presence and absence of boat noise, and then compress the files and determine which compresses more (dolphin sounds with the boat noise, or dolphin sounds without the boat noise). His thinking was that less complex sounds should compress less...so he thinks that boat noise will compress less than dolphin vocalizations. Thus, if dolphin vocalizations happen to compress more in the presence of boat noise than they do without the boat noise...this would sort of imply they are "losing information" so to speak. Does this make sense?
posted by Racergirl
on Jun 25, 2007 -
Which Flash-based, non-iPod audio players have the lowest levels of self-noise (lowest noise floors)? [more inside]
posted by lorimer
on Apr 13, 2007 -
Very strange electrical noise getting into radio on newly imported 1997 JDM Toyota Tercel hatchback. Radio replacement is imminent, but there's [more inside]
posted by toxic
on Aug 29, 2006 -
My recent experience at work has led me to wonder whether there is any sort of personal noise cancellation gun? I envision a device or appliance that you can point at someone obnoxious to negate them using noise cancellation technology.
posted by mert
on Aug 19, 2004 -
Ripping a CD that has tracks that lead into each other and then converting to MP3 has presented me with a problem. When I try to play the MP3s back in order there's a slight stagger when the next track starts (not a crossfade or optional pause), where on the audio CD the transition would not be noticeable. I'd like to either eliminate this error and keep the individual MP3s or rip the CD as one big audio file and convert that to one big MP3. Advice? [specs inside] [more inside]
posted by PinkStainlessTail
on Jun 26, 2004 -
Home recording studio questions: (1) What to do about sound source with a noise problem (sounds like a bad ground loop) and (2) building some approximation of an isolation booth. [more inside] [more inside]
posted by weston
on Jan 1, 2004 -