When researching into microphones the Audio
Technica AT2020 is often recommended as it is modestly price and it sounds
great too. From its success came the AT2020 USB microphone, but as with many
early USB mics it lacked features such as headphone output which is must for
many applications. This lead to the release of AT2020 USB+ microphone, an
upgraded AT2020 USB bundled with accessories which include a small tripod desk
stand, 10 foot USB cable and pop filter.
This microphone is similar in design to the
previous variants with a medium diaphragm 16mm cardioid mic. It is powered
directly by a USB (type A to type B) cable where the connector takes the places
of the previous XLR socket. The microphone has a self-noise figure of 20dB,
which is not brilliant for is adequately low for most studio applications.
There is no means of on the fly filtering so any necessary filters must be
applied after recording.
The USB side takes care of the 16bit Analogue
to Digital conversion which is convenient, but the user is restricted to this
convertor. Headphone can be plugged into the phono jack socket on the side of
the mic and two thumbwheels on the front of the device control the headphone
volume and the balance between the microphone signal and the computers stereo
output. The microphone is a class-compliant device and requires no additional
driver to use on Apple operating systems and a suitable driver should download
automatically on Windows (if not already installed).
Recorded speech confirms that this mic has
the same characteristic of the XLR variants but with the added warmth to the
lower mids in vocals. It is well suited to all vocal styles and can double as a
very capable acoustic instrument mic.
The tripod stand carries the weight of the
microphone very well and it is of very high quality. However it is prone to
falling over if it is knocked. The included pop filter is intended to be
clamped to a suspension boom arm, but for our purposes we cut a custom piece of
wood which allowed it to be clamped to a desk.
For audio recordings it is recommended to
use the free software Audacity and apply software filers. However for our video
recordings we use Camtasia (which does not support audio filters) and instead use
Voice Shaper (intended for AM radio) combined with a virtual audio cable to
filter audio on the fly.