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RTL2832 Native Buffers Have Inherent DC Bias #1284

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DSheirer opened this issue Jul 16, 2022 · 0 comments
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RTL2832 Native Buffers Have Inherent DC Bias #1284

DSheirer opened this issue Jul 16, 2022 · 0 comments
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Build 0.5.0

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The ByteNativeBuffer and corresponding factory are mapping 8-bit samples (0 - 255) from the RTL2832 dongles to the range of:

  • -128 to -1 and 0 to 127

This results in an inherent -0.5 DC offset and the auto DC removal feature is auto-correcting the bias.

Update the ByteNativeBuffer's sample conversion code to map the values to:

  • -127.5 to -0.5 and 0.5 to 127.5
@DSheirer DSheirer added this to the Build 0.5.0 milestone Jul 16, 2022
@DSheirer DSheirer self-assigned this Jul 16, 2022
DSheirer pushed a commit that referenced this issue Jul 16, 2022
#1284 Resolves issue with inherent DC bias (-0.5) in RTL2832 sample c…
34a2eea 
…onversion code.
@DSheirer DSheirer mentioned this issue Jul 16, 2022
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DSheirer added a commit that referenced this issue Jul 16, 2022
@DSheirer
#1284 Resolves issue with inherent DC bias (-0.5) in RTL2832 sample c…
414ba25 
…onversion code. (#1285)

Co-authored-by: Dennis Sheirer <dsheirer@github.com>
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