Wires are great, but sometimes, wireless is more convenient. I’ve been brainstorming for some time now, how, to reintroduce Stereo mics to my patio. I had a wired set for some time, and captured some incredible audio that I wouldn’t normally be able to capture without having outside mics that I can press record on and have a 30 second buffer, to give me time to capture what I’ve just heard, or am now hearing. I know having wires run from outside to in is not visually appealing, and I accept that, but when I took them down, I wanted them back.
I knew wireless was the answer, but I still had a lot of questions in my mind. FM, or, annilogue transmition is noisey, and can be picked up by other receiver equipment in the area, which I’m not fond of. How do I plug it all in, and keep it lie in weather, outside elements. Well? I believe I’ve found a solution. Bluetooth.
I’ve reviewed the Bluetooth Airfly transmitter/receiver before on Drews Sound, and it’s always been appealing to me. It’s small, and charges/keep alive via USB C. The nice thing about the pro model, is the one device will both transmit/receive audio, obviously, two different modes, using one at a time. So, if you purchase two of them, there’s your wireless stereo broadcast solution.
Plug one, in transmit mode into a microphone that has built-in monitoring. Note, that though a lot of UsB mics have monitoring, they need a data connection from computer/smart phone to have the monitoring just work. So just plugging into to USB power, doesn’t do the trick. The most lightweight, easiest solution I could think of may be a field recorder, the Zoom H1 Essential, for example. Turn it on, it drops into record standby, and there you go, using the headphones jack/volume knob to set levels.
The second Airfly, is in receive mode, and is plugged into whatever you need, in my case, line-in jack of a sound card. Pare them both together once, and the next time you turn them both off/on they reconnect seemlessly. I leave them both plugged into UsB power.
Ok, so the next hurtal, power, outside on the patio. Sure, I’ve got a home outlet, but, I don’t want to leave something plugged in 24-7. The battery linked to above, is not only water proof, it’s, solar charged, and yes, you may charge devices off of it as it itself charges. Both the Zoom H1, as well as the Airfly don’t use much power at all, 5 watts or so each. This battery stays very cool while charging devices, like, the coolest I’ve seen. It charges via the sun, and has enough power to last all night to then start recharging the next day. Both the Zoom, and Airfly don’t get hot either. I’ve got the Zoom H1 on a very small tripod. You know the kind if you’ve used Zoom products. I’ve got a dead cat to block wind.
So after the audio comes back inside, into the computer, I am using Stationplaylist Streamer to get it sent over the local network, via an Icecast stream, local server. AAC+ 64 KBPS. I calculated the bites for 30 seconds of audio at this bitrate, and set the buffer in the Icecast server configuration.
On the IPhone I have an app, VRadio, which pulls up the stream upon app launch. I sware it used to, before an update have the record button on the same screen upon launch, but, it’s not hard doesnt take much time to get to.
The Airfly devices don’t time out, just keep streaming. Yes, you do have a bit of G Sharp Bluetooth noise, but it’s an ok compramise for me, to have the outside mics. There was to be rain storms, so I went outside, and picked up everything in one hand and carried in, it’s so portable, battery, recorder, and airfly.
So, if your ever in the marcket needing a solution where you can’t, don’t want wires, Mull over the above! I was looking to not, have a phone or small computer always outside because of heat and pore WiFi coverage on the patio.
More great audio from the outside world coming soon! We promise!