704 / | HD | DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION |
200 | DF | SPEECH SIGNAL PROCESSING {4} |
201 | DF | .~ For storage or transmission {12} |
226 | .~.~ Noise {2} | |
227 | DF | .~.~.~> Pretransmission |
228 | DF | .~.~.~> Post-transmission |