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IN-Vehicle Acoustic Echo Reduction
using Complementary Comb Filters
Comb Filters, sin/cos
Speakerphone to Speakerphone / Speakerphone to POTs
Left White Noise Time Domain Right
Sonogram Left / RightComparison
Left Channel   White Noise Spectrual Analysis  Right Channel
Left Voice Time Domain Right
Sonogram Left / Right Comparison
Left Channel   Voice Spectrual Analysis  Right Channel
Comb Filter has little effect on audio intelligibility

-- Left Channel Audio -- 

 
 

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