Power Member
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2000-08-29, 08:10 PM
#1
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Power Member
¥[¤J¤é´Á: Apr 2000 ±zªº¦í§}: ·s¦Ë<-->®ç¶éin¥xÆW.
¤å³¹: 529
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§@ªÌ airdon (Airdon) ¬ÝªO Audiophile
¼ÐÃD Re: Ãö©ó¥úÅֶǿé½u...(¥ú¶Ç¿é²z½×»¡©ú) ®É¶¡ Mon Nov 1 10:43:05 1999 ¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w hi all §Ú¥Ø«e±q¨Æ´¹¤ù³]p¡A°ò¥»¤W§Ú̪ºChip³£¸g¹LPLL jitter test, ¦ý¬O§Úı±ojitter³Q°Ó¤H®³¨ÓÄF¤H´N¸ò¤@¨Ç©v±Ð®³ºÏ³õ¨Ó°ä¤H¬O¤@¼Ëªº ¡A©Ò¿×°g«H¬ì¾Ç¤Æ§a¡A´N§Ú©Ò¾Ç¹LªºDA¡A§Ú¯uªºÄ±±obitstream¬O¤@¬y ªº³]p¡A³o¬O¤uµ{®v»Pª÷¦Õ¦·ªº¤@¤j¦¨´N¡A©Ò¥HSACD¤]¬O§Ú©Ò¾ÖÀ¹ªº§Þ ³N¡C DAªºjitter¬O«ÜÄY«ªº°ÝÃD¡A¦]¬°³o¨Çªø±o¬n¬n±×±×ªº¼Æ¦ì«H¸¹¡A ©MDA¥»¨ªºclk ¨S¹ï»ô¡]¨ä¹ê¾_Àú¾¹¥X¨Óªº«H¸¹¤]¤£§¹¬ü¡^¡A´N³Qconvert ¦¨µÀW«H¸¹¡A¦Ü©ó¼Æ¦ì¶Ç¿éªº°ÝÃD«h¤£¬O¦p¦¹¡A°£«D¯u¦³AÄ_ªº¤uµ{®v §â¥úÅÖ±µ¦¬ªº¸ê®Æª½±µ¥á¤JDA¡A°ò¥»¤W³£¦³buffer latch¦í¸ê®Æ¡A¦A¸g ®É°ò««Ø«áºÉ¶q§¹¬üªº¶i¤JDA¡A²{¥NªºCD¦bÁA¸Ñjitter«á§Þ³N³£¤w¸g«Ü ¦¨¼ô¡A¦Ü©ó¨º±ø¥úÅÖ¡A¹ê¦b¤pÃD¤j§@¡A§ÚÌon chip audio¥X¥hDAªº¸}¦ì ÁÙ¸ò¨ä¥L¸Ë¸m¦@¥Î¡A¦]¬°Audio 48K ¹ê¦b¤ÓºC¤F¡A¥¦ªºtiming «ÜÃP¡A ©M100MHz¥H¤Wªºdevice®t¤Ó»·¤F¡A´XÓnsªº®É¶¡³£n·m¡A·|©Èjitter¨Ï ¸ê®Æ¿ù»~ªº´N¦b³o¸Ì¡A¦Ü©ó¸ê®Æ¥á¨Ó¥á¥hªº¥»¨Ó´N¬O§Úªº¤u§@¡A12M..33M ..100M..266M Hz³£¤£·|¶Ç¿ù¡A§Ú̪ºchip«o¤ñ¤@±ø¥úÅÖ«K©y¡C ¤£¹L¨S¦³clkªº¶Çªk¯uªº¦³°ÝÃD¡A¨âÃ䪺¾_Àú¾¹³£¤£·|«Ü·Ç¡A©Ò¥H¤@°} ¤l´NµLªk¦P¨B¦Ó¥á¿ù¸ê®Æ¡ASPDIF¬Ý¨Ó¦n¦h¤F¡A¤£¹L¹ïµÀW«H¸¹À³¸Ó¤£ ÄY«¡A¥t¥~USB¤]¬O¨S¦³clkªºlink¡A¥L¨C¶Ç¤»µ§¸ê®Æ´N¤@©wn0->1©Î 1->0¥H«K¶i¦æsync. ·íµM¯uªº¥h¶q¬O³Ì¦nªº¡A§A·|µo²{¦a²y¤£¬O¶êªº¡A¡A¡A¡A¡A¡A¦Ó¬O¾ò¶ê¡C |
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2000-08-29, 08:13 PM
#2
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Power Member
¥[¤J¤é´Á: Apr 2000 ±zªº¦í§}: ·s¦Ë<-->®ç¶éin¥xÆW.
¤å³¹: 529
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µo«H¤H: "Franz Wu" <[email protected]>, ¬ÝªO: Audiophile
¼Ð ÃD: Re: Ãö©ó¥úÅֶǿé½u...(¥ú¶Ç¿é²z½×»¡©ú) µo«H¯¸: DCI HiNet (Thu Oct 28 02:05:55 1999) Âà«H¯¸: Palmarama!news.ntu!spring!netnews.hinet.net!news Origin: h186.ever.com.tw Ãö©ó¼Æ¦ì¶Ç¿é¡Aªø¤[¥H¨Ó¤@ª½¦b³oÓª©¤W¤Þ°_°Q½×¡A ¤p§Ì¤£¤~¸I¥©©Ò¾Ç¬O¹q¾÷¤uµ{¤¤ªº³q°T»â°ì¡A ¹ï¹q¸ô³]p²¤ª¾¥Ö¤ò¡A§Æ±æ¯à©ß¿j¤Þ¥É¡A Âç²M¤@¤U¼Æ¦ì³q°Tªº¤@¨Ç°ò¥»Æ[©À¡C º¥ý¡A¤£ºÞ¬O¼Æ¦ì©ÎÃþ¤ñ³q°T¡A©Ò¨Ì¿àªº¶Ç¿é´C¤¶©Î§Þ³N¡A ¤j©è¤W³£¬O§Q¥Î¦ÛµM¬Éªº¬YºØª«²z¶q¦b®É¶¡¶b¤W°µ³sÄòªº §ïÅܨӶǿé°T¸¹¡A´N¥Ø«e¬ì§Þ©Ò¤Î¡A³o¨Çª«²z¶q¥»½è¤W¬O ¡§Ãþ¤ñ¡¨ªº¡A¦^¨ìµÅT¤¤©Ò¨Ï¥Îªº S/PDIF ¨Ó¬Ý¡A¦P¶b¼Æ¦ì½u ¶Çªº¬O¹qÀ£°T¸¹¡A¥úÅֶǪº¬O¡§¥úªº±j«×¡¨¡C ¦b³o¸Ì¥²¶·¥ý½Í¤@¤U¥úì¥óªº¤u§@¤è¦¡¡A»¡¨ì¥ú¶Ç¿é¤j³¡ ¤Àªº¤H·|·Q¨ì¼Æ¦ì¶Ç¿é¡A¥ú¶Ç¿é¬O¥i¥H°µÃþ¤ñ¶Ç¿éªº¡A¦Ó ¥B¡§¥úÃþ¤ñ¶Ç¿é¡¨ÁÙ³Q¤j¶q¨Ï¥Î¦b¦³½u¹qµø¨t²Î¤¤¡C¥úµo °eì¥óªº¿é¤J¬O¹qÀ£¡A¿é¥X¬O¥ú¡A¦Ó¥úªº±j«×³q±`³£©M ¿é¤J¹qÀ£¦³¬Û·íµ{«×ªº¥¿¬ÛÃö¡A¬°¤F®e©öÅý«D¹q¾÷I´º ªº¤H¤F¸Ñ¡A¥i¥H·Q¹³¬O¿é¥X¥úªº±j«×©M¿é¤J¹qÀ£¦¨¥¿¤ñ¡C ¦Ó±µ¦¬ì¥ó«h¤Ï¤§¡A©Ò¥H§A¥i¥H§â¤@Ó¥¿©¶ªi¿é¤Jµo°eì¥ó ¡A§â²£¥Íªº¥úõX¤J±µ¦¬ì¥ó¡A¨º»ò±µ¦¬ì¥óªº¿é¥XºÝ´N¥i ±o¨ìì¥ýªº¥¿©¶ªi¡C §Ú̲{¦b´N¥i¥H¼á²M¤@Ó»Ýn¯S§O±j½ÕªºÆ[©À¬O¡A ¨M©w°T¸¹¬O©Ò¿×ªº¼Æ¦ì©Î¬OÃþ¤ñªÌ¡A¨Ã«D¬O°T¸¹¥»¨¡A ©Î¬O¶Ç¿éªº´C¤¶¡A¦Ó¬O¤H¡I ©Ò¥H§ÚÌ¥i¥H»¡¤@Ó¤èªi¬OÃþ¤ñ°T¸¹¡A¦P¼Ëªº¤]¥i¥H»¡ ¤@Ó¥¿©¶ªi¬O¼Æ¦ì°T¸¹¡A¬Æ¦Ü§ÚÀH¤âµeӶäC¤KÁVªº¦±½u ¤]¥i¥H»¡¬O¼Æ¦ì°T¸¹¡CÁ|Ó¨Ò¤l¡A¦U¦ì¦pªG¦³¾÷·|¥Î¥Üªi¾¹ ¬Ý¬Ý§A̱«eªºPC¸Ì±ªº¥D¾÷ªOªº°T¸¹ªº¸Ü¡]À³¸Ó¨S¤H·| ÃhºÃ³o¬O¼Æ¦ì°T¸¹§a¡I¡H :O¡^²Ä¤@¦¸¬Ý¨ìªº¤Hªº¤ÏÀ³¤j·§ ³£¬O³o¬O¤°»òÄê¥D¾÷ªO¡H§A¦³¥i¯à·|§¹¥þ»{¤£¥X¤@¯ëÆ[©À ¤¤¼Æ¦ì°T¸¹¡]ªø±o¹³¤èªiªº¨ººØ¡^ªº¼Ë¤l¡C¦Ñ¹ê»¡§Úı±o PC¥D¾÷ªO¤Wªº°T¸¹ÁÙ¤ñ¸û¹³¥¿©¶ªi¡C «ÂI¨Ó¤F¡I¼Æ¦ì¹q¸ôªº¤u§@¬O§âÃþ¤ñ°T¸¹§@¼Æ¦ìªº§P§O¡A ¤ñ¤è»¡¹qÀ£3V¥H¤W¬O1¡A¥H¤U¬O0¡C¡]¨ä¹ê¤j³¡¤À¯u¥¿ªº¹q¸ô ¤]¤£¬O¦p¦¹¡A¦Ó¬O3.xV¥H¤Wºâ1¡A1.xV¥H¤Uºâ0¡^ ©Ò¥H§Y«K¬O¼Æ¦ì°T¸¹¡A¤]¬O¦³°T¸¹ªº¦nÃaªº®t§O¡A²z·Q¤¤ªº ¼Æ¦ì°T¸¹¬O¦P¤èªi¤@¼Ëªº¤è¾ã¡]³o¤´µM¬O¤@Ó¬°¤F«K©ó²z¸Ñ ªº»¡ªk¡A¯u¹êªº±¡§Înµø©Ò±Ä¥Îªº§Þ³N¦Ó©w¡A¤£¹L¦bµÅT ¥Îªº S/PDIF ¤¤¡A¤£ºÞ¬O¹q®ð°T¸¹©Î¥ú°T¸¹¶Ç¿é¡A³o¼Ë»¡ À³¸Ó¨S¿ù¡^¡C ¤@ӼƦì°T¸¹¦pªG¤£¨Î¡A·|¹ï¹q¸ô¦³³\¦h¤è±ªº¼vÅT¡A ´NµÅT¨t²Î¦Ó¨¥¡A±`³Q°Q½×ªº´NÄݨâ¤è±¡G¸ê®Æ¿ù»~¡® jitter ·í°T¸¹¤£¨Î®É¡A¤×¨ä¬O¦³Âø°T®Éªº»~§P¬O«Ü®e©ö²z¸Ñªº¡C ¦ý jitter ´N»Ýn¤@¨Ç±M·~ªº¹q¾÷I´ºª¾ÃÑ¡A²³æ¨Ó»¡¡A¥H¤@Ó ¤èªi¨Ó»¡©ú¡A ¡È¡ý¡Æ¡Æ¡Æ¡ý¡È¡È¡È¡ý¡Æ¡Æ¡Æ¡ý¡È¡È¡È¡ý¡Æ¡Æ¡Æ¡ý¡È¡È¡È¡ý¡Æ¡Æ¡Æ¡ý¡È ·í°T¸¹¤£¨Îªº®ÉÔ¡A¥i¯àÅܦ¨ ¡È¡ý¡Æ¡Æ¡Æ¢¡È¡È¡È¢A¡Æ¡Æ¡Æ¢B¡È¡È¡È¡þ¡Æ¡Æ¡Æ¢¡È¡È¡È¡þ¡Æ¡Æ¡Æ¡ý¡È ¨º»ò¹q¸ô·|»{¬°³oÓ°T¸¹¬O ¡È¡ý¡Æ¡Æ¡ý¡È¡È¡È¡È¡ý¡Æ¡Æ¡Æ¡ý¡È¡È¡È¡È¡ý¡Æ¡ý¡È¡È¡È¡È¡È¡ý¡Æ¡Æ¡ý¡È ÁöµM¨S¦³¿ù»~ªº¦ì¤¸¡A¦ý¦³ jitter ¡]¦³¤H½¦¨®É°ò»~®t¡^¡A jitter ¥i¥H±j¯P¼vÅT¼Æ¦ìÃþ¤ñÂà´«¹q¸ôªº¤u§@¡A·|ª½±µ¼vÅT Ãþ¤ñ¿é¥XªºÀWÃСA·íµM´N¼vÅTµ¦â¡C ©Ò¥H¦^¹LÀY¨Ó¬Ý¡ACDÂà½Lªº¼Æ¦ì¿é¥X¡B¥ú¿é¥Xªºì¥ó¡B ¥úÅÖªº§÷½è»P«~½è¡B±µ¦¬ì¥óªºÀu¦H¡B±µ¦¬¹q¸ôªº®Ä¯à¡A ¬Æ¦Ü¥úÅÖ¦p¦ó¨Ï¥Î¡]¼vÅT°I´î¡^³£·|¼vÅTµ½è¡®µ¦â¡C ·íµM¡A¥úÅÖªº¼vÅTÓ¤H¤]»{¬°¤£¬O³Ì¤jªº¡A³Ì¤jªº¤´¬O CDÂà½Lªº¼Æ¦ì¿é¥X¡®±µ¦¬¹q¸ôªº®Ä¯à¡A¤Î¼Æ¦ìÃþ¤ñÂà´« ¹q¸ôªº³]p¡A¤×¨ä¬O§Ü jitter ¯à¤O¡C©Ò¥HCDÂà½L©MDAªº Àu¦H¤´µM¬O¦³®t§O¡C¬Û«H³o©M¤j³¡¤ÀµÅT°gªº¸gÅç¬Û²Å¡C ¤]³\¦³¤H·|°Ý¡A²z½×¤W¨â®a¤£¦P¤½¥qªºCD¡ÏDAÁnµ À³¸Ó¬O¤@¼Ëªº¡A¦ý¹ê»Ú¤W¨C®a¤½¥qªº¼Æ¦ì¡®¼ÆÃþÂà¤Æ³¡¤À ¥i¥H°µ¨ì¿é¥X¤@¼Ò¤@¼Ë¡]¦pªG¥Î¦P¼ËªºDA´¹¤ù¡^¡A¦ýÂà ½Lªº§Ü¾_µ²ºc¡BDAªºÃþ¤ñ³¡¤Àµ¥³\¦h¤è±¤´µM¥i¥H¦³«Ü¤j ®t¶Z¡C³o¨Ç³£·|¹ïµ¦â¦³«Ü¤j¼vÅT¡C ¦Ü©óªü¹F¥S¥Îªº toslink ¬O¤£¬O¶Qªº¤@©w¤ñ¸û¦n¡A¨º´N ¤£¤@©w ¤F¡C ¥t¥~´£¨ì¤@Ó¤]¬O´¿¤Þµoª§Ä³ªº¸ÜÃD¡A¤£¦PºØÃþªºCDR ¬O§_µ¦â¤£¦P¡AÓ¤Hªº¸gÅç¬O½T¹ê¤£¦P¡A³s§Ú¦Ñ±C³£¥i¥H »´©öÅ¥¥X¨Ó¡A§Ú»{¬°¥D¦]¬O¤Ï®g²v¹ï¥ú¾ÇŪ¨úªº¼vÅT¡C Ū¨ú¥Xªº¹q®ðªi§Î¦]§÷½è¤Ï®g²v¤£¦P¦Ó§ïÅÜ¡A³y¦¨«áÄò ³B²zªº¼vÅT¡C´N¹³¬O§Ü¾_³B²z¹ïµ¦âªº¼vÅT¬OÃþ¦üªº¹D²z¡C ¥t¥~ªº¤@ÓÓ¤H¸gÅç¬O¥úÅÖ¤£½×¶Q½â¡Aµ¦â®t¤£¤F«Ü¦h¡A ¦ý¦P¶b´N¥i¥H®t«D±`¦h¡A§Ú»{¬°¬O¥ú¶Ç¿é´X¥G¨S¦³ªý§Ü ¤Ç°t°ÝÃD¡A¤£¹³¹q®ð¶Ç¿éªý§Ü ¡® ªý§Ü¤Ç°t¼vÅT¬Æ¥¨¡C ¥H¤W¬°Ó¤Hªº¤@ÂI·Qªk¡A±æ¦U¦ì¦P¦n»P¥ý¶i«ü¥¿ |
2000-08-29, 08:16 PM
#3
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Power Member
¥[¤J¤é´Á: Apr 2000 ±zªº¦í§}: ·s¦Ë<-->®ç¶éin¥xÆW.
¤å³¹: 529
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µo«H¤H: "Franz Wu" <[email protected]>, ¬ÝªO: Audiophile
¼Ð ÃD: Re: Ãö©ó¥úÅֶǿé½u...(¥ú¶Ç¿é²z½×»¡©ú) µo«H¯¸: DCI HiNet (Thu Oct 28 23:43:41 1999) Âà«H¯¸: Palmarama!news.ntu!spring!netnews.hinet.net!news Origin: h186.ever.com.tw §Ú·Q³o¼Ëªºª§½×¬O«Ü¦³½ìªº~~~ ªiÅQ¤Ò´µ°ò¥S»PAirdon ¥Sªº«ÂI¬O»{¬°¸ê®Æ¨S¿ù»~´N¥i¥H¤F §Ú«D±`¦P·N¥H¤@¯ëªºµÅTÀô¹Ò¤£·|¦³°÷¤jªº¥¢¯u¡]<1e-10¡^ §Ú¤£¬O®³ jitter ¨Ó°ä¤H¡A¦Ó¬O¦pªG¨â¦ì¦³¾÷·|«·s¦^·Q PCMªº modulation & de-modulation ªº²z½×°ò¦»P¹ê§@ ·|¬Ý¥X¦b de-modulation ®É master clock accuracy ªº«n©Ê For example, 쥻¬O³o¼Ëªºªi§Î ¡È ¡@¡ý¡È¡È ¡@¡@¡@¡@¡ý¡È¡È ¡@¡@¡@¡@¡@¡@¡@¡ý¡È¡È ¡È¡È¡È¡È¡È¡È¡È¡È¡È¡È¡È¡È ¦]¬° jitter Åܦ¨ ¡È ¡@¡ý¡È ¡@¡@¡@¡ý¡È¡È¡È ¡@¡@¡@¡@¡@¡@¡@¡ý¡È¡È ¡È¡È¡È¡È¡È¡È¡È¡È¡È¡È¡È¡È ¹ïÀWÃЦ³«Ü¤jªº¼vÅT §Ú¬Û«H¤´µM·|¦³¨Ç¤H»{¬° jitter ¨S³o»ò¤jªº¼vÅT ¨º°ß¤@ªº¤èªk´N¬O¹êÅç¨ÓÃÒ©ú¡C ½Ð¦³§ÓÅçÃҪ̨Ӹէ@DACªº½u¸ô¡A§Ú°µ¹L¨â¦¸DAC¡A ³£¬O¦Û¤vK datasheet¡A¤£¶R®M¥ó¡A¦Û¤v layout PCB¡A ¨Ï¥Îªº³£¬O BurrBrown PCM63PK¡C ½Ð±Ð¹L¤@¨Ç«e½ú¡A¦¬¶°¤@¨Ç¦W¼t½u¸ô¡A ¦b½T»{½u¸ô«e¡A³£¥Î¬}¬}ªO°µ¹L¹êÅç¡A ¥ÎPCªºµ®Ä¥dªº S/PDIF ¿é¥X²£¥Í´ú¸Õªi§Î¡A ¦pªGª½±µ·Ó datasheet §â receiver ©M over-sampling °Â°_¨Ó ´NÄé¤JDA chips¡A¨Ï¥ÎÀWÃФÀªR»ö¡®¥Üªi¾¹Æ[¹î¿é¥X ¦A¥Î buffer ¨Ó³B²z jitter¡]¹ï¡I´N¬O buffer¡A buffer ¬O ³B²z jitter ªº¦UºØ§Þ¥©¤¤¥²nªºÀô¸`¡A·íµMÁÙ¦³³\¦h¨ä ¥L³¡¤Àªº½u¸ô»P§Þ¥©¡^¡A§â³B²z¹Lªº°T¸¹°e¤JDA¡A ¨Ï¥ÎÀWÃФÀªR»ö¡®¥Üªi¾¹Æ[¹î¿é¥X¡AÀ³¸Ó´N·|ÁA¸Ñ jitter ¨ì©³¬O¤°»ò¤Î¨ä¹ïDAªº¼vÅT¡C ¨ä¹ê§Ú·Q±j½Õªº¬O¡Ajitter ¼vÅTªº¬ODA chip ªº¤u§@¡A ¨Ã¤£¬O¸ê®Æ¥¿¤£¥¿½T¡Ajitter ¹ïDAC¤¤ªº¼Æ¦ì¹q¸ô³¡¤À ½T¹ê¨S¦³¼vÅT¡]°£«D jitter «D±`¤j¡^¡A¦ý¹ï¼Æ¦ìÃþ¤ñ Âà´«¬O¦³ÃöÁä©Êªº§@¥Î¡C ¤´µM¥i¯à¦³¤Hı±oCD Âà½Lªº digital output¡A¤£¸m©ó ¤Ó®t§a¡A¤W¦¸¬Ý¹L¤@¥x2¸U¦hªºÂà½L¡Ajitter ÁÙ¬O«Ü¤j¡C ¹ï©ó³o¨Ç¦P¦n¡A§Ú©Ò¯à«Øijªº¡AÁÙ¬O½Ð¥Ļ@¹êÅç¡C ¦b¡§Ãþ¤ñ¦¡¡¨¥Üªi¾¹¤U¡]50MHz¥H¤W)¡A¬O¥i¥H¥Î²´·ú ª½±µ¬Ý¨ì jitter ªº§Îª¬¡C ¹ê¦b«Ü¤[¨SÅ¥¨ìDIYZoneªº§d¥SªºÁnµ¥X²{¦bª©¤W¤F¡A ¤£ª¾§d¥S¹ï³o¨Ç§Þ³Nªº·Qªk¦p¦ó¡H«Ü´Á«ÝÅ¥¨ì§d¥S ¹ï¤p§Ì³o¨Ç§Þ³NÆ[©Àªº«ü¥¿¡C |
2000-08-29, 08:21 PM
#4
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Power Member
¥[¤J¤é´Á: Apr 2000 ±zªº¦í§}: ·s¦Ë<-->®ç¶éin¥xÆW.
¤å³¹: 529
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µo«H¤H: [email protected] (ªiÅQ¤Ò´µ°ò), ¬ÝªO: Audiophile
¼Ð ÃD: Re: Ãö©ó¥úÅֶǿé½u...(¥ú¶Ç¿é²z½×»¡©ú) µo«H¯¸: DCI HiNet (Sat Oct 30 00:38:32 1999) Âà«H¯¸: Palmarama!news.ntu!spring!netnews.hinet.net!C!not_for_mail Origin: 210.65.150.1 ²{¦b¬O¦b°Q½×¡uÂI¹ïÂI¡vªº¥úÅ֩ΦP¶b¶Ç¿é½u¡A½Ð°Ý¤@¤U¡A ³o¸ò Jitter ¦³¦óÃö«Y¡H §A¨â¦¸·h¥X Jitter ¡A§Ú¥u¾á¤ß¡uÆ[²³¡v·|³Q§A»~¾É¥H¬° ¡u¥úÅ֩ΦP¶b¶Ç¿é½u»P jitter¦³Ãö¡A¦Ó¥B·|¼vÅTµ½è¡v¡C ©Ò¥H§Ú¥²¶·«¥Ó§Úªº¬Ýªk¡G ¹ït³d±N0101110¼Æ¾Ú¸g¥Ñ(A)ÂI¶Ç¨ì(B)ÂIªº¥úÅ֩ΦP¶b¶Ç¿é½u¦Ó¨¥ ¡A¥un¥úÅÖ¨S¦³§é¨ì¡B¦P¶b½u¨S¦³¥ÍùסBÂ_µõ¡A¥¦´N¥i¥H¡u§¹§¹¥þ ¥þ¡v¡B¡u¤@Óbit ¤]¤£·|¿ù¡v¦a§¹¦¨¶Ç°e¥ô°È¡C 0101110(A)--------------------------------(B)0101110 ¦b³o¬q¶ZÂ÷¤º¡A¬JµM¡u¤@Ó bit ¤]¨S¦³¿ù¡v¡Aþ¨Ó¡u¼vÅTµ½è¡v¡H ¥H¦P¶b½u¨Ó»¡¡A¤£ºÞ§A¥Î¡u¸ôÃä¾ß¨Óªº»É½u¡v¡B¡u¤@¦Ì10¤¸¥x¹ôªº ¦L«×¬v¹qÆl¡v¡B¡uKª÷½u¡v¡B¡u¯Âª÷½u¡v¡B¡u»È½u¡v¡B¡u¶q¹L³¯¶i ¿³¤ß¹q¹ÏªºÂåÀø¥Î½u¡v...¡A¥un¬O¨S¥ÍùסB¨SÂ_µõ¡A©Ò±o¨ìªºµ²ªG ¡u³£¤@¼Ë¡v¡A¦A»¡¤@¦¸¡G¡u³£¤@¼Ë¡v¡C ¦Ü©ó¨º¨Ç¸¹ºÙÅ¥ªº¥X¨Óªº¤H¡A§A̦󤣦b®a¸Ì¥t¥~½ÐÓ¤HÀ°¦£¬°§A ¶i¦æ¡uª¼¥Ø´ú¸Õ¡v©O¡H ------------------------------------------------------ ³o¨Ç¤å³¹³£¬O¦b°Q½×¥H¼Æ¦ì¦P¶b»P¥úÅÖ¤§¶¡¨ì©³¦³¤°»ò®t??«Ü¦³½ìªº~~¬Û«H¥@¬É¦U¦a¤]¦³¤£¤Ö¤H¦b°Q½×§a?? |
2000-08-29, 08:25 PM
#5
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Power Member
¥[¤J¤é´Á: Apr 2000 ±zªº¦í§}: ·s¦Ë<-->®ç¶éin¥xÆW.
¤å³¹: 529
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µo«H¤H: "Franz Wu" <[email protected]>, ¬ÝªO: Audiophile
¼Ð ÃD: Re: Ãö©ó¥úÅֶǿé½u...(¥ú¶Ç¿é²z½×»¡©ú) µo«H¯¸: DCI HiNet (Fri Oct 29 08:50:57 1999) Âà«H¯¸: Palmarama!news.ntu!spring!netnews.hinet.net!news Origin: h186.ever.com.tw > ¡u¸ôÃä¾ß¨Óªº»É½u¡v¡B¡u¤@¦Ì10¤¸¥x¹ôªº¦L«×¬v¹qÆl¡v¡B > ¡uKª÷½u¡v¡B¡u¯Âª÷½u¡v¡B¡u»È½u¡v¡B¡u¶q¹L³¯¶i¿³¤ß¹q¹Ï > ªºÂåÀø¥Î½u¡v...¡A¥un¬O¨S¥ÍùסB¨SÂ_µõ¡A©Ò±o¨ìªºµ²ªG > ¡u³£¤@¼Ë¡v¡A¦A»¡¤@¦¸¡G¡u³£¤@¼Ë¡v¡C ¡¯¡¯ ¦]¬°¯uªº¤£¤@¼Ë ¡¯¡¯ ¦pªG§A¥h¹q¤l¬ì¨tªº¹êÅç«Ç§â»ö¾¹ªº±´´Î®³¨«¡A¦V¦Ñ®v ©Î§U±Ð»¡¤W±ªº¨º¬q¸Ü¡A§A¥i¯à·|±o¨ì big surprise¡I §Ú©Àªº¬Oª«²z¡®¹q¾÷¡A·Ó²z»¡¬O¬Û«H¼Æ¾Ú¤j©ó¦Õ¦·ªº¨º¤@±Ú¡A ´N¹³¬OªÅ®ðªºÀã«×·|¤£·|¼vÅTµ½èªº°ÝÃD¡A´N§Ú©Ò°á¹Lªº Acoustics ¨Ó¬Ý¡A¼vÅT¥¼¥²¨S¦³¡A¥u¬O¤H¦ÕÀ³¸Ó§¹¥þÅ¥¤£¥X¨Ó¡C ´N¹³¬O°T¸¹½u¡B³â¥z½u¡A¦³«Ü¦h¹q¤l¾Ç¤Wªº°Ñ¼Æ¡A¥i¥H¸ÑÄÀ «Ü¦hªF¦è¡A¥u¬O¦b¹ê°È¤W¯u¹êªº¥@¬Éªº½ÆÂø«×¤Ó¤j¡A¦³³\¦h ªº factors ©¼¦¹¶¡¤¬¬Û©Ô¿÷¡A«ÜÃø§â²z½×À³¥Î¤W¡A¨Ã«D²z½×¬O ¿ùªº©Î²z½×µL¥Î¡A¦Ó¬O§Ṳ́HÃþªº´¼¼z»P¥Ø«e¯à´x´¤ªº¤u¨ã ¨S¿ìªk³B²z«Ü¤j½ÆÂø«×ªº°ÝÃD¡C ©Ò¥H¦³¨Ç¤H´N¤ñ½u¡A¦]¬°¸gÅçªk«h¬O¦³°Ñ¦Ò»ùȪº¡C´N¹³¥x ¿n¹q¸Ì§Úªº¦P¾ÇÌ¡A«Ü¦hªF¦èÁÙ¬On¾a¸gÅçªk«h¡®¹Á¸Õ¿ù»~¡C ¦]¬°¶q¤l¤O¾Ç»P©TºAª«²z¤¤¦³«Ü¦hªF¦èÁö¦³²z½×¡A¦ý¥Ø«eÁÙ ¬O¨S¦³¿ìªk¥Î¹q¸£§¹¥þ¼ÒÀÀ¡A¦]¬°¤Ó½ÆÂø¤F¡C ¦Ó¥BªiÅQ¤Ò´µ°ò¥S¯uªºÄ±±o¥xÆW¤H¤¤³£¨S¦³¤H¦³«i®ð§@ª¼¥Ø ´ú¸Õ¶Ü¡H§Ú¯uªº«ÜÃhºÃ¦pªG§Ú»¡§Ú¹ï¦Û¤v°µ¹L¡AÁÙ®³§Ú¦Ñ±C ¨Ó°µ¹L¡A±z¬O§_·|¬Û«H¡HÁÙ¬O±z¦A¬Ý¤F§Úªº post ¤§«á¡A´N ¤w¸g§â§Ú©w¦ì¦¨¬Û«H°g«H¡B±R«ôª÷¦Õ¦·ªº±ÚÃþ©O¡H > µw¬On»¡¡G¡uÅ¥±o¥X¨Ó¡v¡A¤£¦ý¬O¦bÄF¦Û¤v¡A¤]¬O¦bÄF§O¤H¡C > ¥xÆWªºµÅT°é¡A¦´N¸Ó¸õÂ÷³oÓ¼h¯Å¤F¡C ¦pªG§Ú§â¤W±ªº©RÃD§ï¦¨ µw¬On»¡¡G¡uÅ¥¤£¥X¨Ó¡v¡A¤£¦ý¬O¦bÄF¦Û¤v¡A¤]¬O¦bÄF§O¤H¡C ¥xÆWªºµÅT°é¡A¦´N¸Ó¸õÂ÷³oÓ¼h¯Å¤F¡C ±z¦³¦ó·P·Q¡H ±z¦³µL·Q¹L¡A¤]³\§Ú¬O¹ïªº¡A¨º»ò»{¬°§Ú»~¾É§O¤Hªº±z¥¿¦b »~¾É§O¤H¡C¦ó¥H±z¦³§â´¤±z¤@©w¬O¹ïªº©O¡H±z¬O§_·Q¹L¡A ¦]¬°±z¨S¨£¹Lª÷¦Õ¦·¡A´N¥i¥H½T©w¥@¤W¨S¦³ª÷¦Õ¦·ªº¦s¦b¡H §Ú¬O¼Ð·Çªº¼ç¤ô¸¥¡A§Úªá«Üªøªº®É¶¡¼g³o¨Çpost¡A¥u¬O¤ß ¦å¨Ó¼é¡A§Ú¨ÃµL·N»¡ªA§O¤H§Ú¬O¹ïªº¡A¦]¬°§Ú¤]¥i¯à¬O¿ùªº¡C ¦ý¬O§Ú¼Ö¨£¦b³oÓ²{¦b¤j·§¥u³Ñ****ªºª©¦³¤HÄ@·N½Í½Í§Þ³N¡A §Ú¯à§@ªº¬O¤À¨É§Ú©Ò¨ü¹Lªº«Ü²Ï¹êªºª«²z»P¹q¾÷°V½m¤¤©Ò¾Ç¡A ¦ý§Æ±æ°Q½×ªº¤º®en¦³¦X²zªº½×ÃÒ¡A§Y«K¬O¾Ç³N°Q½×¤]·|¦³ ·N¨£§¹¥þ¬Û¥ªªº¾Ç¬£¤§ª§¡A¦ý§Æ±æªº¬O¯u²z¯à¶VÅG¶V©ú¡C¦Ó ¤£¬O¬y©ó·N®ð¡C ¦Ü©ó¦³¤H°Ý¨ì¹ï jitter ¹ï digital audio ªº¼vÅTªº½×Â_¨Ó¦Û¦ó³B¡A ½Ð°Ñ¦Ò1980¦~¥N¥½´Á¨ì1990ªì´Á¡AIEEE Transactions on Signal Processing ©M¥t¥~¤@¥»´Á¥Z¡]§Ú§Ñ¤F¦W¦r¡A¤]¬O IEEE Transactions on Acoustic xxxx¡A¤w¸g¨Ö¤J IEEE Transactions on Signal Processing¡^¡A³o¨Ç¬O¦Ñ¥~ªº¾Ç³N¬ã¨s¡AÀ³¸Ó¤£¬O¥xÆW¤H ªº°g«H»P°g«ä¤F§a¡H ÁöµM§Ú¹ï jitter ªº¤F¸Ñ¤£´±»¡²`¤J©Î¥¿½T¡A°_½X²z¤u¤H¹ï ¯u¹êªº°l¨D©MÃhºÃªº¼Ð·Ç¡A¤p§Ì¦Û«HÁÙ¤£P©ó¤Óª¼¥Ø¡C Ãö©ó¶Ç¿é¤l¨t²Î¦p¦ó³y¦¨ jitter¡A¹ï©óµÅTDAC¬°¦ó¦³¼vÅT¡A ÁÙ¬O½Ð¦³¤ß¤H§â¤p§Ìªº¤å³¹¥J²Óªº¦A¬Ý¤@¹M§a¡IÄY®æ¨Ó»¡¡A jitter ¹ï¼Æ¦ì¹q¸ô¤]¬O¦³¼vÅT¡A¥u¬O°£«D jitter «ÜÄY«¡A¹q¸ô ¤jP¤W¤W¯à¥¿±`¤u§@¡A¦ý¤]¦³«Ü¦h¨Ò¤l¡A¦b¯Âºé¼Æ¦ìªº ¥@¬É¸Ì¡Ajitter ¤]¬O¤j°ÝÃD¡A´N¹³¹q«Hªº³\¦h¶Ç¿é§Þ³N¡A ¤ñ¤è»¡T1½u¸ô¡B½Ã¬P½u¸ô¡A¤×¨ä¶V°ªÀWªº¨t²Î¡Ajitter ¥i ¬O·|³y¦¨¤j°ÝÃD¡A¨º¤£¬Oµ½è¡A¦Ó¬O·|ª½±µ³y¦¨¸ê®Æ¿ù»~ ©Î¬y¥¢¡C |
2000-08-29, 08:31 PM
#6
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Advance Member
¥[¤J¤é´Á: Aug 2000 ±zªº¦í§}: ¥x¥_¿¤
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2000-08-30, 08:16 AM
#7
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Basic Member
¥[¤J¤é´Á: Jun 2000 ±zªº¦í§}: Taiwan
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2000-08-30, 04:27 PM
#8
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Power Member
¥[¤J¤é´Á: Apr 2000 ±zªº¦í§}: ·s¦Ë<-->®ç¶éin¥xÆW.
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2000-08-30, 06:43 PM
#9
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