Assertion: subwoofer's sound | /r/CapableOf | use truerta
Facets:
Source sentences:
text: Then I used TrueRTA spectrum analyzer software, a Focusrite Scarlett 2i2 USB interface, and a calibrated Earthworks M30 measurement microphone to check the level of the subwoofers relative to the level of the sound coming from the speakers using TrueRTA