CD-ROM controller Source code and Circuit diagram here....... - Page 3

analog_sa · 4th September 2002, 05:49 PM

Indeed it is a different issue. While recording a cdr you may introduce jitter at both the extraction and recording phases and i've heard many claims that cdrs can sound better than original cds because of reclocking the data to a better clock, but this admittedly has not been my experience. Jitter due to the spdif interface simply means incorrect separation (in time) of clock and data from the multiplexed stream. Don't forget that error correction on music cds is certainly not as good as on data - there is simply less error correction code in order to leave more room for music.

cheers
peter

oxoxbyx · 27th September 2008, 06:41 AM

i look scematic use IC 555AP6,555IR22,and 555ID10..................

what substitution that part because i am very diffcult get that component............

sory my english...........

regards

rio

ditter · 30th September 2008, 07:10 PM

74LS245AN (OCTAL BUS TRANSCEIVER NOINV)= ÊÐ555ÀÏ6

74LS373 (OCTAL TRANSPARANT LATCH) = 555IR22

74LS145 (BCD-DECIMAL DECODER DRIVER)= 555ID10
good luck

oxoxbyx · 3rd October 2008, 01:16 PM

very thanks mr.ditter

u information very help me......

oxoxbyx · 19th November 2008, 11:21 AM

heloooo mr.diter

i look u cd rom controller have facilities cd text but u give Hex file not have function cd text....

and i see u give source code in yours web site and i see at modul/function read cd text but is empty......

can u give source code read cd text function..............

sory my english....

regards

rio

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4th September 2002, 05:49 PM	#21
analog_sa diyAudio Member Join Date: Aug 2002 Location: Sofia	Indeed it is a different issue. While recording a cdr you may introduce jitter at both the extraction and recording phases and i've heard many claims that cdrs can sound better than original cds because of reclocking the data to a better clock, but this admittedly has not been my experience. Jitter due to the spdif interface simply means incorrect separation (in time) of clock and data from the multiplexed stream. Don't forget that error correction on music cds is certainly not as good as on data - there is simply less error correction code in order to leave more room for music. cheers peter

27th September 2008, 06:41 AM	#22
oxoxbyx diyAudio Member Join Date: Jun 2008	i look scematic use IC 555AP6,555IR22,and 555ID10.................. what substitution that part because i am very diffcult get that component............ sory my english........... regards rio

30th September 2008, 07:10 PM	#23
ditter diyAudio Member Join Date: Aug 2002 Location: RUSSIA	74LS245AN (OCTAL BUS TRANSCEIVER NOINV)= ÊÐ555ÀÏ6 74LS373 (OCTAL TRANSPARANT LATCH) = 555IR22 74LS145 (BCD-DECIMAL DECODER DRIVER)= 555ID10 good luck

3rd October 2008, 01:16 PM	#24
oxoxbyx diyAudio Member Join Date: Jun 2008	very thanks mr.ditter u information very help me......

19th November 2008, 11:21 AM	#25
oxoxbyx diyAudio Member Join Date: Jun 2008	heloooo mr.diter i look u cd rom controller have facilities cd text but u give Hex file not have function cd text.... and i see u give source code in yours web site and i see at modul/function read cd text but is empty...... can u give source code read cd text function.............. sory my english.... regards rio

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