The Era Of The Virtual Microphone

Since the beginning of pro audio, connoisseurs of classic microphones have invested in rare, aging instruments that are said to bring a certain magical quality to the sound. Since many of these vintage mics are quite old, they incur an increasingly high level of costly maintenance. Most of the rest of us are priced out of this collector’s domain.

Now, in the age of powerful personal computing, there is an alternative: the virtual microphone. It is a real microphone that uses digital signal processing (DSP) to artificially emulate the sound pickup characteristics and frequency response of another microphone.

Virtual mics are essentially neutral and transparent sounding with an equally neutral mic preamplifier. When a DSP “model” of another mic is applied to the virtual mic, the mic can then emulate the sound of that model. The DSP software is typically part of a modeled pre-set.

Slate VMS.

Slate VMS.

The idea of virtual mics really began in 2015, when Steven Slate introduced the Slate Digital ML-1 Virtual Microphone System (VMS). Slate called it “a hybrid system that utilizes an extremely transparent condenser microphone, a sonically neutral preamp and state-of-the-art digital processing suite that recreates the tone of classic microphones and preamps.”

The Slate VMS, priced at under $1,000, is a very cost effective way for users to experiment with rate and classic mics. It caught on with end users. A wide range classic mic and mic preamp sounds is achievable by combining the mic with the VMS software that Slate has continued producing. The VSM led other companies to join the virtual mic parade.

Townsend Spire L22 Microphone Modeling System.

Townsend Spire L22 Microphone Modeling System.

Townsend Labs began offering the Sphere L22 Microphone Modeling System ($1499) in 2015. It featured the Sphere L22 dual-diaphragm microphone with the Sphere plug-in, which allows users to emulate the response, transient response, harmonics, proximity effect and three-dimensional polar response of many classic mics. Users can record the front and rear capsule at the same time, which allows users to change microphone selections and polar patterns after recording has taken place.

Antelope Edge Modeling Microphone.

Antelope Edge Modeling Microphone.

Antelope Audio debuted their large-diaphragm Edge Modeling Microphone ($899) in 2017. It also offers dual-diaphragms and dual output and, when used with their modeling software, allows the user to model every polar pattern on every mic, with accurate on- and off-axis responses.

Antelope Software.

Antelope Software.

Another Antelope microphone, the Verge ($149) is designed to work with all preamp-equipped Antelope Audio interfaces.

Sweetwater Sound, a pro audio dealer based in Fort Wayne, Indiana, did a test of all three virtual mic systems to see how well they emulated the sound of classic mics such as the Neumann U67, Sony C-800G, AKG C12, Telefunken ELA M251 and U47 and the Shure SM57.

If you are seeking a clear winner, you’ll need go to the Sweetwater mic test page, listen to the samples and then follow to the debate at the link.

Each system has their proponents, but it is clear that virtual microphones have a place and the category is here to stay.

Let us know what you think…

Log-in or Register for free to post comments…

You might also like...

Essential Guide: Immersive Audio Pt 3 - Immersive Audio Objects

Immersive audio transforms the listening environment to deliver a mesmerizing and captivating experience for a wide range of audiences and expansive group of genres.

Essential Guide:  Immersive Audio Pt 2 - Immersive Audio Compatibility

Immersive audio has the great potential to transform our human listening experience, captivate our imagination, and inspire our inventiveness.

Essential Guide:  Immersive Audio Pt 1 - An Immersive Audio Primer

Part one of this four-part series introduces immersive audio, the terminology used, the standards adopted, and the key principles that make it work.

Doctor Who And The Art Of Microphones

The BBC science fiction series Doctor Who is no stranger to controversy and general media attention. From its beginnings in the 1960s through to the 1980s, it has been called too scary - apparently causing people to watch from behind…

Broadcast For IT - Part 15 - Digital Audio

Audio is arguably the most complex aspect of broadcast television. The human auditory systems are extremely sensitive to distortion and noise. For IT engineers to progress in broadcast television they must understand the sampling rates and formats of sound, and…