Re: For all the group

Got them at the local Target but I don't see them on their web site. These are foldable, included a case & the aircraft-gizmo. I'll grab the actual model number tonight.

Thanks. Is it these for $49.99?

Nope, those aren't foldable. Very likely the same or nearly so as far as noise cancellation, though.

The pair I picked up were $99-ish. Probably wouldn't have gotten them but I was being driven nuts (and it's a short trip) by some equipment noise and happened to see them on the rack when I swung by the store to pick up a load of cat litter.

Target is notoriously skimpy in product descriptions but here is a more detailed one and it looks like they are foldable:

Looks like they started out even higher but came down over time.

No cats here. But two big dogs where anything less than a 30lbs bag would be a mere drop in the bucket.

Be sure to try them before buying.. one pair I tried out (Japanese name brand, IIRC, might have been Panasonic or Sony) *added* a really annoying high frequency hiss while removing some of the low frequency noise. Probably okay in an aircraft, but I wanted to be able to use them in an office (the kind that has other people in it), and these would not have been acceptable in a relatively quiet environment. Not particularly cheap either, considering they didn't work that well (maybe $85).

I have a pair of Sony regular phones that covers my ears.. not as high tech as the noise cancelling ones, but they work pretty well in airplanes. The cord is too long. Best regards, Spehro Pefhany

On a sunny day (Tue, 18 Mar 2008 11:30:34 -0700) it happened Joerg wrote in :

Yea, right. Best thing to do is bring a set of different connectors, some screened cable, a roll of 60/40, and one of those gas powered soldering torches. If they ask what you are doing, just say: 'I am an engineer'. If they still bother you, point out the 60/40 and say: 'Here! contains LEAD'.

And then they will scream: LEAD, LEAD, LEAD, terrorists, we are all going to die.

die.

Sno-o-o-o-ort! Almost as dangerous as the bottle of SE Australia Chardonnay that TSA took from a client coming to visit :-(

...Jim Thompson

die.

He could have gone back to the start of the line, uncork it and then drink it right there from the bottle ;-)

Not sure about those at 40 MSPS, but a 14 bit, 10 MSPS (AD9240 from ADI) does spread very little around the central conversion channel, i.e. the noise peak to peak is well below 1 LSB. Mind you, I have designed it in 7 or so years ago (board rev. 0 done in 2000...), not that new an ADC at all. Someone at ADI must know damn well what he is doing.... :-).

Dimiter

P.S. Not sure if I am a "good guy" but I do post from Google :-).

------------------------------------------------------ Dimiter Popoff Transgalactic Instruments

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Tim Wescott wrote:

Okay ... the model I picked up was Sony MDR-NC40, with a claimed 40 hrs per AAA. As with (AFAIK) all or nearly all noise canceling headphones, they're best at suppressing noise that would be called a rumble or roar and aren't particularly effective for higher frequencies. In a quiet room there is a slight but noticeable hiss; OTOH, in a quiet room, just turn off the NC switch and use them as regular phones. And they really kill the noise from fans and engines.

You're "good" ;-)

...Jim Thompson

Seems like Tar-jay does not have that anymore but the other should be very close since it's also Sony. Rumble-only performance is fine because it's really about aircraft. Especially when you ride in the rodeo seats like rows 44-46 on the 777.

not Bose. Hmm, maybe the horrible "ear pieces" do

Now this link should earn me clearance, right?

They claim sub-100$ models are rubbish.

Mark

why go to the back of the line?

Cheers Terry

not Bose. Hmm, maybe the horrible "ear pieces" do

Well, I am not noise-sensitive enough to shell out $300 for headphones. I am one of the guys who still listen to AM radio when on the road.

One reason I am not going to spend much is that the foam pads on newer headphones fall apart so fast. My old Sennheisers were great but I can't find pads anymore. The last ones simply crumpled.

I've got a pair of Philips SHN2500's that are pretty good and I only paid $29.95 for them. They employ the passive with the in-ear phones and then the active unit.

It does work better with regular noises that are constant, like roars, rumbles, etc.

one of the guys who still listen to AM radio when on

headphones fall apart so fast. My old Sennheisers were

How about 150? With the $ as low as it is I could almost justify this. And if it keeps falling as it is right now it'll soon cost you a few euro cents (blatant exageration) :)

Eh? I hadn't realised that the standard headset jacks (used in Cessnas etc) were also used on large jets for passengers. Or do you use an adaptor or something?

Cheers,

Al

Oh come on... I thought you're an EE!

Make sure it passes EMI tests before bringing it on the 777...

Michael