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January 30, 2017 Up vote answer Who uses Reaper, and what do you use it for?
January 3, 2017 Commented The only one I'm familiar with that isn't for dedicated research is the Eigenmike https://mhacoustics.com/products We have one at Oculus and it's.... interesting to work with, There are difficulties and limitations. For instance, it has 32 capsules & output channels, so is limited to 48k sampling rate just to push through the data. All those capsules introduce a lot of noise, so there's a lot of work going on under-the-hood to account for that that leads to a lower-than-expected sensitivity. The software they ship with it for recording is a pain-in-the-ass, but fortunately they have fairly well developed AudioUnit substitutions you can use in Reaper. What's fascinating is just dialing in what you want to hear. You want to emulate a 3rd order hypercardioid point 20° left, 67° up? No problem. You want to emulate a super-cardioid mid-side pointing 123° right, 3° down? You want six different Blumlein pairs all at different axes? Easy-peasy! Given that most head-tracking ambisonic playback engines are 1st or 2nd order, an Eigenmike is overkill, but it's really quite something to explore.
January 3, 2017 Commented Those little telephone mics will go far. I love them for their tiny size and financial disposability (last I saw you could buy 2 for $3 -- US -- on Amazon!). Having something where I won't be disappointed if it gets trashed helps increase my willingness to explore. And remember to try bluetooth communication signals, especially when devices are synching.
January 3, 2017 Commented I now have both an Elektrosluch 3+ and a small collection of phone tap mics like yours (they're so cheap.... why not?) I can unhesitatingly say the audio quality of the Elektrosluch 3+ is superior. Is it $70 more superior? Well...... Certainly it is much lower noise and definitely far more sensitive. That's undeniable and definitely worth the the money and wait. There are sacrifices in the form factor, though. Phone mics are tiny. They can fit inside really small, hard-to-reach areas. I've taken the "suction cup" off two of mine, exposing the element inside, and put them in direct contact with the items I want to record. Because of their affordability and size, I have no hesitation in putting them in situations where they can get harmed (i.e. directly on the broken sparking capacitor of a cathode ray tube on an old CRT) or wedging them in tight-fitting holes (i.e. inserting one through a hole in the back of a drone copter). They're light, easy to attach, and financially disposable. An Elektrosluch 3+ is definitely none of these things. It's expensive enough (and fragile-feeling enough, what with those tiny plastic screws necessary to reach the battery) that I'm not comfortable being carefree with it, not to mention the time it will take to get a replacement. Being a stereo device, it's difficult to get a recording where I feel like it will fold to mono easily. The size and spacing of the elements and the size of the device itself makes it difficult to get some of the quick and easy recording I can get with a telephone mic. This isn't something I can mount to a small quadcopter drone and get interesting flight acceleration sounds out of. It's *SO* sensitive that in locations where an old phone mic would normally be mostly quiet there is still plenty of hum. Still, it undeniably sounds and feels better. Walking around with one evokes the same original feelings of exploration I had when I first started playing with telephone mics a bunch of years ago. The increased sensitivity has been really fun -- bluetooth signals, for instance, have a sudden detail that they didn't before. All-in-all, my recommendation is: if you can, have both available.
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