They're both similar in that they are both first-order microphones
NT-SF1 is slightly smaller and lighter than the Ambeo.
Length (millimeters / inches)
TetraMic: 133mm / 5.2"
OctoMic: 128mm / 5.0"
NT-SF1: 193mm / 7.6"
Ambeo: 215mm / 8.5"
Weight (grams / ounces)
TetraMic: 85gm / 3 oz.
OctoMic: 150gm / 5.3 oz.
NT-SF1 315gm / 11.1 oz.
Ambeo: 410gm / 14.5 oz.
You can see a side-by-side photo of the four here:
https://www.facebook.com/permalink.php?story_fbid=2462399327110451
Neither of the two is provided with individualized calibrations - they
use a single generic calibration for every instance of the microphone.
This is not optimal.
Neither is designed to be re-calibrated as they age and drift.
A recent test posted on Facebook showed that the NT-SF1 has slightly
lower self-noise. See the details here:
https://www.facebook.com/groups/SpatialAudioVRARMR/permalink/1530228073787181/
Len Moskowitz ([email protected])
Core Sound LLC
www.core-sound.com
Home of OctoMic and TetraMic
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