Post by Ritter197No, the in ear phones not not much better than a good noise cancelling
headphone.
I have both and can attest to that. Good headphones are much better.
There are only 2 cases i can think where that would happen:
1) The headphones you are using are really good, the in-ears really bad
2) You have found a way around physics.
I strongly suspect that 2 is not the case. In fact 1 is probably the case.
When I say IEMs, I don't mean in-ear phones, I mean in-ear-monitors. So
compare any pair of noise-cancelling headphones you like to the Shure E5c
earphones. Or for that matter compare any pair Westone ES3s. No these aren't
cheap, in fact they are top of the line. As for noise reduction, the Shures
listed achieve 32 to 33 dB, noise cancelling headphones rarely if ever cross
20dB. This all comes down to physics. IEMs physically block the sound,
thereby avoiding nasty artifacts. Noise-cancelling headphones actually
generate a phase-inverted signal, but they cannot sample the sound where the
generate the sound, so there is always at least some comb-filtering,
variable delays, etc. This results from physics, because of the way sound
propogates through air even measuring sound at two points 1 inch apart
results in substantially different waveforms, as such recreating the inverse
of one will not cancel the sound at another, this is a fact of physics with
regards to compression waves. Further ruining the ability of
noise-cancellation to deliver anything above tolerable is the simple fact
that sound propogates awith a speed determined by the density (among other
things, but for this argument density if the most important) of the medium,
and as luck would have has a random density pattern with no known method of
computation beyond estimates from brownian motion. Combined these two
factors mean:
1) Noise-cancellation technology can't know what sound it has to generate
2) Noise-cancellation technology can't know when to generate the sound
anyway
As such noise-cancellation technology always has and always will be inferior
to noise blocking designs. So like I said, IEMs will sound better and be
more effective.
Joe