Download waves v9 r3011/3/2023 ![]() Google Patents Frequency normalization in speech sound wavesÄownload PDF Info Publication number US3052757A US3052757A US781103A US78110358A US3052757A US 3052757 A US3052757 A US 3052757A US 781103 A US781103 A US 781103A US 78110358 A US78110358 A US 78110358A US 3052757 A US3052757 A US 3052757A Authority US United States Prior art keywords voltage resistor tube capacitor bst Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3052757A - Frequency normalization in speech sound waves US3052757A - Frequency normalization in speech sound waves
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