PowerPoint
2
PCM
PCM

PCM“”“”“”“”“(step-size)”“”

(PCM)—

DPCM



AbS

DL_CELP(a)

MPEG



MPEG

MPEG1


MPEG3


AC-3




AC-3(2)
(BSI)

AC-3(3)






AC-3








00h52 49 46 46 82 21 22 00 57 41 56 45 66 6D 74 20
RIFF fmt
2236802 WAVE
10h12 00 00 00 01 00 02 00 44 AC 00 00 10 B1 02 00

18 waveformatPCM 44.1kHz 176400
20h04 00 10 00 00 00 66 61 63 74 04 00 00 00 54 88

4 16
30h08 00 64 61 74 61 50 21 22 00 00 00 00 00 FF FF
data
2236752
40h00 00 FE FF FE FF 00 00 00 00 FE FF FE FF 01 00

1.bin




5


4