22-2 ???基?聲學特?

bR@qTɡAڭ̳q`NTuA٬ء]frame^Aq`@ӭإ]tƭӰ򥻶g]fundamental period^A~R^TSxCۧڭ̴NiHq@ӭؤnǯSx]acoustic features^AHKii@BRCq`ڭ̤\ةMؤiH|AӨCX{ؼƫh٬زv]frame rate^AزvVAhһݭnp귽VjCHUOq@qTXhӭتܷNϡG


5.GѤ@qTXءC

ڭ̤Hť@qTAߧYiHPSʦq]volume^B]pitch^M]timbre^Aڭ̭nϥιqӤRTANϥμƾǤӴyzWCSʡAHuGvHժPıCoǥѨC@ӭةҩXӪƭȩΦVqN٬nǯSx]acoustic features^ApUC

WznǯSxA{bɰ쪺iΤ譱AiHܦpUG


5.GnǯSxܩɰ쪺{C

YOϥ FFTN@ӭتTনTWСAWznǯSxiHܦpUG


5.GnǯSxܩW쪺{C

@qTتXAڭ̴NiHwCӭبөnǯSx]iO@ӼƭȡAҦpqάOAάO@ӦVqAҦpWЩάO MFCC^APη|ݭnΨ줣PnǯSxAq۰ʦapoǯSxA~i@Bi򪺤RΤCHUUp`NTѪUΡAHΥiΨ쪺nǯSxάDzߤkC

@~

  1. @qTWvO 16 kHzAYOت׬O 320 ӨIAЦ^UCDG
    1. pGؤ|O 120 IAزvOH
    2. pGزvO 100 frame/secAhؤ|ӬOXIH
  2. ]ڱqڪyTX@ӭءApUϡCpGWvO 8 kHzAЭpoӭتWvC]b򥻶gӶi業ɡA򥻶gӼƥVhVnAHDíwC^


    5.GХѦحpWvC

  3. бqWMTAӸUCW]кɶqϥμƾǤ{ӻ^Aûb`ͬAɷ|JoDz{HG
    1. W]beat frequency^
    2. Ǯ]Doppler effect^

Audio Signal Processing and Recognition (TBzP)