Remove unsigned integer offset in Neuropixels 2.0 probes

Author: bparks13

Source/Devices/Neuropixels2e.cpp

@@ -549,7 +549,7 @@ void Neuropixels2e::processFrames()
 				const size_t channelIndex = rawToChannel[j][i];
 
 				samples[probeIndex][channelIndex * numFrames + frameCount[probeIndex]] =
-					(float)(*(amplifierData + adcIndices[j] + adcDataOffset)) * gainCorrection[probeIndex];
+					(float)(*(amplifierData + adcIndices[j] + adcDataOffset)) * gainCorrection[probeIndex] + DataMidpoint;
 			}
 		}
 

Source/Devices/Neuropixels2e.h

@@ -95,6 +95,9 @@ namespace OnixSourcePlugin
 
 		static constexpr int NumberOfProbes = 2;
 
+		static constexpr uint16_t NumberOfAdcBins = 4096;
+		static constexpr float DataMidpoint = NumberOfAdcBins / 2;
+
 		DataBuffer* amplifierBuffer[NumberOfProbes];
 
 		std::array<uint64_t, NumberOfProbes> probeSN;