͸Ժ¤ᵡҧҧ PCM/ADPCM

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Ţ (Article ID): 89879 - ԵѳǢͧ㹺
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ع Modulation (PCM) Ẻᴻտŵع Modulation (ADPCM) subclasses ͧٻẺ Microsoft waveform (.WAV) PCM Ѻ.WAV ١ҧ ADPCM deltas ҧҧ

pcm ADPCM ෤Ԥҧ Ѻ红§Ẻ͹͡ٻẺԨԷ .WAV ͧ Microsoft Ըա红 (ҧ Mu - A - Law ŧ¹ CELP ), ʹѺʹع 1.0 к§ͧ Windows

ѡɳС÷ӧҹͧ PCM

pcm ӧҹ ¡ҧ¡ǧҷ (¡ѵ sampling) ǧҷ辺·令 õ 11 õ 22 44 õ sampling ٧ѹѺ ÷շʴẺ wave Ẻ͹͡ФسҾ§բ еҧ繵ŢԧѺ´ infinite ҡ +1.0 ͧ full-scale -1.0 ͧҵǹٻẺŤ ͧҡҹͧ١繵ŢẺԨԷŢͧ finite Ŷ١Ѵ͹ PCM 16 Ե PCM 8 Ե ҧ 8 16 Ե¡ѹ· 16 Եդ´ ѧ waveform ԨԷ§ա PCM 8 Եդ´¡ ˵ hiss § waveform ͡ҡͧͷʡŧ

ѡɳС÷ӧҹͧ ADPCM

ADPCM, termed ·ٻẺúպѴ ԸջԷҾҡҡ waveforms PCM 16 Ե 8 Ե Ե 4 Ѻеҧ դʢͧͷҧʡͧ PCM 16 Եҹ ҧá سҾ§ inferior ͧҡк§ͧ Windows understands PCM 8/16 Եҹ ͧպѴ Т ADPCM /ҡ PCM 觵ͧҢͧ CPU ١ mono õ 22 ADPCM ö١ᵡẺ (蹤 ) õ 386SX/16 CPU ѵ sampling ٧ (õ 44) §ͨդԹѺ 386SX/16 ͢ 觷§ mono õ 11 ADPCM ö١պẺ㹤 386SX/16 ADPCM ͧͧա§ǨѴ (ACM) Դ

ADPCM 纤Ҥᵡҧҧ PCM Դѹͧ зҧ԰ҹԴŴҴ ͧҡ԰ҹҹ ҧ١ͧ reproduced դ٧ᵡͷѺԴ¹ distortion §ҧ´㹡õ 11 ADPCM ҡ͡ discern ѵ sampling ٧ Ẻ͹ԧѡѺõ 44 ADPCM

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Ţ (Article ID): 89879 - Ǥش: 25 ѹ¹ 2554 - Revision: 4.0
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  • Microsoft Windows Sound System 1.0
  • Microsoft Windows Sound System 1.0a
Keywords:
kbmt KB89879 KbMtth
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