G PHYSICS
G10 MUSICAL INSTRUMENTS; ACOUSTICS
G10L SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
25/00 Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
G10L25/48 specially adapted for particular use
G10L25/51 for comparison or discrimination
G10L25/57 for processing of video signals