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F**T
Good - but not great.
Pro's:-- It works as advertised.-- Decent distance.-- Large assortment of connectors/adapters/mic.-- Good, detailed, instructions - including fully documented quick reference card!-- Stereo!-- Supports back-haul signal (meaning, receiving operator can wear a mic and speak to performer via earpiece).-- Decent battery life.-- Lightweight - almost too lightweight. Like, there is a lot of air in there that could be taken up with a larger battery, more powerful transceiver, etc.Con's-- Signal is easily blocked (however, re-establishes without any problems).-- MINI USB connectors for charging - NOT the current MICRO USB standard everything is using (you lost entire star for this!)-- Non-replaceable/removable battery (lost 1/2 star on this).-- Lack of external antenna. (yes, there are pro's and con's to this - to me this is a con!)Need to test against a clean input reference signal. Had a lot of background noise in recording. Don't know if that was from my source, configuration, or the unit. Will update once I've done testing.Unit is more than large enough to support two AAA size batteries, and leave room for ports, connectors, etc.It would be nice to support 100m range rather than 100' (~30m).Add a separate 1/8" jack to receiver to support headphones. One as 'line-out' the other with volume control for headphones.Increase the distance, add removable batteries, and switch to micro-usb connectors and you would get 4.5-5 stars.
P**.
A One of a Kind Device, And Answer to Many Headaches!
I have been stunned and entirely delighted by the quality of this system. As a classical musician, I wanted a way to transmit audio from a recorder out in the room, to a camera close to the stage. With the 100+ foot range of the AudioStream Pro, and the open air space prevalent in most performance halls, this device works beautifully for that purpose. However, the AudioStream works well in recording situations that necessitate wireless monitoring over headphones, the device classifying as "low latency" in my tests. The audio signal is high fidelity and digital, meaning that FM static interference is NON-existent. Unlike all other wireless audio solutions I found, Wi Digital is the only company I have found that produces products that stream a digital STEREO signal, as opposed to mono. On top of that, the frequency response of the AudioStream Pro is flat, and the sound going in is nearly indistinguishable from its original source. Because of the SoundCard mode feature, this device works well with Skype, FaceTime, and other VoIP services. With the included adapter, the lav mics even work for a traditional phone call, plugging directly into the headphone port of a smartphone.I'm a bit of a snob when it comes to microphones. To be entirely honest, I was extremely skeptical that the included lavalier microphones would be up to my exacting standards. However, the microphones included are of a shockingly high quality, especially in the bass register — an uncommon trait for microphones of this size. They could easily compete with the quality of most portable recorders on the market. The advantage of the lav microphones is their small size, and the ability to change stereo micing position. The very narrow positioning on most traditional portable recorders is nothing short of abysmal for classical music. One CANNOT underestimate the difference in quality one can derive from a wider micing position. The increased distance gives a much better approximation to the acoustics of a performance space. This is the only portable solution I know of that could achieve NOS, ORTF, or even binaural mic positioning. Of course, a proper mic stand adapter (not included) is required to achieve those mic placement techniques.I have found two caveats with system. I tested these in a building that contains 20+ 2.4 GHZ wireless access points. In areas with extreme interference, open air space is essential for the AudioStream to work as intended. Another caveat is that Sound Card Mode, you can only record mono audio, NOT stereo. This is not a huge problem if you merely wish to do VoIP calling (stereo audio monitoring, with video), as advertised. Still, this was very disappointing to me, especially with my desire to connect this device to an iPhone camera as a portable solution to record stereo audio with video. Though keep in mind, one can only include so many functions in such a small device, and there are no peers when it comes to the functionality included. However, as for the lack of stereo audio input in Sound Card Mode, I have developed a workaround for the iPhone and iPad. With the Apple Lightning-to-USB Camera Adapter (MSRP $30), you can connect the AudioStream Pro receiver to a small, portable audio interface, such as the Griffin Technology iMic - The original USB Stereo Input and Output Audio Adapter , the Behringer UCA202 Audio Interface , or similar iOS compatible audio interface. I chose to list those devices because of their portability, low latency, and compatibility with iOS. A similar method may be used with an Android device. For those who are wondering, while one could sync two audio sources in post-production, syncing at the time of the recording is the easiest way to prevent against issues of drift, and differing timecodes.Obviously, I'm a huge fan of the device, and the "labor of love" that went into creating this by Wi Digital. However, don't take my word for it, check out Sound On Sound's review of the sister product, the AudioLink Pro. While 95% identical, the difference between the AudioLink Pro and the AudioStream Pro is the included amplifier in the AudioLink, for use with a guitar, in addition to a different accessory kit. http://www.soundonsound.com/sos/jun15/articles/wi-audiolink.htm
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