Loading ...
Loading ...
Loading ...
28
4. ANTHEM ROOM CORRECTION (ARC
®
)
Please visit AnthemARC.com for detailed information about
using Anthem Room Correction.
The most signicant detriment to the sound of an audio sys-
tem is almost always the room it resides within—especial-
ly true in the realm of bass. Even in a professionally treated
sound room, bass can quickly become boomy or anemic. An-
them Room Correction helps audio systems sound their best
in any space. ARC oers a robust suite of tools to tame your
wild sonic frontier, whether you have a tricked-out home the-
ater, a traditional living room with carpet and thick drapes, or
a modern oor plan with large open spaces and acoustically
reective furniture and windows.
Have you ever tested the acoustics in an empty room by whis-
tling or clapping? It brings to mind how sound is aected by
a room’s size, structure, and contents. Even when using op-
timally positioned speakers of exceptional quality, the room
negatively impacts sound quality considerably. Surfaces such
as windows and furnishings and the geometry of the walls,
oor, and ceiling add unwanted resonance and coloration,
making the bass either boomy or less punchy, voices less nat-
ural, and the dialogue less intelligible. The eect on frequency
response is typically ±6 dB in the midrange and ±10 dB at low
frequencies.
To compensate for this and to optimize the in-room response
of your speakers, Anthem Room Correction measures the out-
put of each speaker relative to the listening area then, through
a series of calculations, adjusts its output. Not only does ARC
correct peaks and dips in a speaker’s frequency response, but
it also preserves the benecial acoustic attributes of a room—
attributes based on proven psychoacoustic science (the study
of how humans hear and experience sound).
In the sample curves provided here, the red curves represent
the in-room response before correction, as an average from
ve measurement positions, whereas the green ones show re-
sponse with equalization applied. The black curve represents
the target response. In this case, a subwoofer and bass man-
agement are also in use.
The default correction range, as shown below, is 5,000 Hz.
This range can be changed to a higher or lower frequency if
desired, although raising it is not recommended. At higher fre-
quencies, the microphone becomes directional, thus aecting
measurement accuracy.
Note the rise in the measured and corrected response below
200 Hz. This rise shows the amount of room gain. ARC pre-
serves the natural room gain of the room or allows you to ad-
just the amount of room gain if you wish.
The subwoofer graph may imply that the subwoofer plays up
to the highest frequency shown, but what it plays depends
on what the other channels send to it as determined by their
crossover setting. The subwoofer graph shows the available
correction range, which is not necessarily the range that other
channels send to it through bass management.
Loading ...
Loading ...
Loading ...