22-1 ???基???

׭T]audio signals^H²aA@Hկť쪺nAN٬TAҦp@몺yM֡CYnMDYԪwqANOWv]fundamental frequency^ 20 Hz ~ 20 kHz TANOTC]WvOb@TҲͪ򥻶gӼơAٷ|dҡC^nSO`NOAHթүť쪺nA|Hۦ~ܡA~VjAүť쪺nWvdNVCҦpAiHϥΰAlan]mosquito ringtone^ӰAanAѩWvܰAWҮɧAT_AuAMAPťoAӥxWѮv]]j50^Oť쪺I

Hint
ҥHAMA?ܮɡApGLDҰݡAФnͮA]G(1) A`@Ѥ]|ܦѡC(2) LOuť찪WAplA]uyv|ťuwOvI

۹LʪӨAHťOO۹zAܦhʪť찪WTAҦp]ҥHڭ̥iHϥΤèөIsAOڭ̦ۤvoťên^At~٦@ǰʪoXWTAҦpbMAǵ۳oǰTMypPC

T͡Aݭn@Ӿ_ʷӲͪŮ𪺾_ʡAҦpG

oӾ_ʷN|aʪŮ𪺪iʡAΦŮOiA@P@A@V~ǰeCڭ̪HդսAiHPŮ𪺪iʡAoǪiʲoʤկgA̫gѤjѪRANܦڭť쪺nApUϡC


5.GѭҧΦOiAgѪŮǼHսC

YnNTsƦ榡qlɡAڭ̴NϥιŮiʬ۷ӷPPANOiഫqTA̫NqTHƦ쪺覡xsUӡCboӰOTL{]Ҧpϥιqniɡ^Aq`ڭ̥\wUCTѼơG

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  1. ڭ̦bϥιqniɡAq`wTѼơH̤ONNqH
  2. WvWL 20 kHz TA٬Wi]ultrasound^AзjMTACXWiTӥγ~C
  3. bPUAЭp⭵TɮשһݪxsŶC
    1. ]w˲v 16 kHzB줸ѪR׬ 16 bitsBnDƬ 1AoWzUAs@TAаݦT|ΦhxsŶH
    2. @몺CD֦ӨA˲v 44.1 kHzB줸ѪR׬ 16 bitsBnDƬ 2Abo˪UA@TqA|ΦhxsŶH]@T MP3 qAɮפjpjO 3~4 MB kAѦi MP3 YvjO 10C^

Audio Signal Processing and Recognition (TBzP)