US PATENT SUBCLASS 381 / FOR 118
.~ Speech pitch fundamental frequency (381/49)

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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

FOR 110  DF  SPEECH ANALYSIS (E.G., PHONEME RECOGNITION) (381/41) {7}
FOR 118.~ Speech pitch fundamental frequency (381/49)

DEFINITION

Classification: 381/FOR.118

Speech pitch fundamental frequency:

Foreign art collection where the component part is the apparent predominant frequency of the input speech wave.