I have been asked a few times what then difference is between an AT822 and an NT4. I don’t have any A/B style recordings in sound, but I can offer some opinion based on using them.
I won’t dwell on the technical differences as these are quite easy to google but briefly, both are single point stereo microphones with capsules in X-Y configuration.
Power
Both mics are battery powered (NT4 9V or phantom, AT822 1.5V) so work well with things like minidisc and a zoom H2. This means that the NT4 works well with almost everything but the AT822 is better with plug-in power type devices.
Weight
The NT4 weighs about double (I would guess but have not weighed them on scales) that of the AT822. This could important for when you end up standing like a statue to capture a sound you weren’t expecting.
Costs
The NT4 also costs about double what an AT822 does. My at822 was £120 via ebay and the NT4 was £240 via competitive high street store.
Sounds
The AT822 I would say is better at soundscapes (wide sounds with lots of variety/range), in that it picks up and handles off axis sound better than the NT4, but then the NT4 is more accurate and directional. The NT4 also picks up sound from behind the MIC array – something that I don’t think the AT822 does. One important difference for the casual user is the AT822 is better at handling windnoise and comes with a lowcut/filter. The better performance in a slight breeze is I think, down to the fact that the mic capsules are have a protection screen build around them and that the mic capsules themselves (I think) are smaller. The NT4 will distort in a very slight breeze, whereas the AT822 handles well with the low pass filter (has proved itself at the top of a hill in moderate winds).
Thanks for the comparison. I actually have two AT822 microphones already, one to use with my Sony MZ-RH1 and one to use with my XH A1.
I’m wondering if I should get something different for the HV30 I’m about to buy. It seems that w/ the lighter weight and the wide sound, the AT822 is something I should use with my camcorder. I’ll be using the HV30 at a family event so I don’t want to go too hardcore w/ equipment, but hopefully an Hv30 with an external mic won’t be too much.
I’ve only used the AT822 with a camcorder once (for a day) and it was a significant improvement on the built in microphone, i.e. listenable. I think the Rode would be far too heavy to mount onto a camera and would require phantom power to get the best of it.