User's Manual

Convergent Design 14 January 2020
7
Erika User Manual
multiple Erika Mics into one audio stream. We do not recommend using Virtual Audio Cable, as in our
testing, we detected problems. Of course, these problems may be corrected with later versions, or we
were doing something wrong. We have tested VoiceMeeter, and it worked fine with Erika.
4. In Music Mode, you may use up to two sets of Erikas (2 Erika Mics with 2 Erika Receivers).
5. For multiple Erika setups, we always recommend testing your setup in advance.
6. If you see that the ordinarily solid Green LED on the Receiver is blinking or flashing quickly, there are
dropouts caused by a less than perfect signal from the Mic to the Receiver.
Please follow all of the steps in this manual, and reorient your Receivers, if possible. Determine there
are obstructions in the signal path. Please refer to the topics below.
WiFi
Erika coexists well with WiFi and other 2.4 GHz devices.
In some cases, we will recommend taking the following steps:
1. Switch from using 2.4 GHz to using 5 GHz WiFi.
Switching has a side benefit as 5 GHz WiFi is much faster than 2.4 GHz WiFi.
Your download and upload speeds should be faster with 5.0 GHz unless your service is the limiting
factor. Note that the range of 5 GHz WiFi is shorter than 2.4 GHz WiFi
2. Ensure that the Erika Receiver is not located close to a WiFi Router or Extender.
3. Set your 2.4 GHz WiFi Bandwidth to 20 MHz versus 40 MHz.
4. If you have multiple WIFI routers/access points, you need to assign them to the same WIFI channel.
Otherwise, the RF spectrum may be consumed with WiFi traffic.
Receiver Positioning
A clear line-of-sight path from the Erika Mic to the Erika Receiver is ideal.
However, this is not always possible.
1. If people are blocking the path, please elevate the Receiver above the height of the people. You may
use a USB 2.0 Extension Cable to do so.
2. Other obstructions may interfere with transmission.
Attempt to locate the Receiver in such a location that the obstructions are avoided.
Note that this may not be a problem in many buildings since the 2.4 GHz signal bounces off objects.
3. If people wearing the Erika Mic will be turning around, so their back is to the Receiver, you may need
to increase the Erika Power Level. Power Level 3, as opposed to Power Level 1 or 2, may solve this
problem. Use the lowest Power Level that eliminates the problem.
4. If you are using multiple Erikas, keep each Erika Mic at least one foot or 1/3 of a meter from each
other.
Keep every Receiver at least 1 foot or 1/3 of a meter from each other. You will need longer USB-C to
USB-A cables, which are widely available from many sources. Or you may use USB 2.0 Male to Female
Extension cables.
Always use the Receiver Stand or some other method to elevate the Erika Receiver off the table.