Extract HDCD, How I Can extract HDCD by software? |
Extract HDCD, How I Can extract HDCD by software? |
 Jan 27 2005, 08:34
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#1
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Group: Members Posts: 5 Joined: 26-January 05 From: Vladivostok(RU) Member No.: 19324  |
How I Can extract HDCD by software(EAC, WMP9...)?
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Aug 27 2007, 15:20
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#2
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Group: Members Posts: 14 Joined: 2-June 07 Member No.: 43967 |
I've started to run all my known HDCD encoded CDs through the HDCD decoder and I'm then compressing using WavPack 4.42 (-hhx6). I'll post more results once I get them.
WavPack compression results. Buffalo Springfield, Last Time Around. Original 16bit - 197mb - 806kbps HDCD Decoded 24bit - 248mb - 1013kbps Joni Mitchell, Clouds. Original 16bit - 202mb - 749kbps HDCD Decoded 24bit - 222mb - 827kbps Joni Mitchell, Blue. Original 16bit - 187mb - 724kbps HDCD Decoded 24bit - 210mb - 811kbps Joni Mitchell, Ladies of the Canyon. Original 16bit - 259mb - 806kbps HDCD Decoded 24bit - 282mb - 878kbps Joni Mitchell, Song to a Seagull. Original 16bit - 210mb - 771kbps HDCD Decoded 24bit - 229mb - 841kbps Van Halen, 1984. Original 16bit - 246mb - 1031kbps HDCD Decoded 24bit - 244mb - 1022kbps Interesting result this, the 24bit HDCD decoded version compresses to a size even smaller than the original 16bit. Van Halen, Van Halen I. Original 16bit - 260mb - 1025kbps HDCD Decoded 24bit - 258mb - 1018kbps Same again here for Van Halen. Neil Young, American Stars 'n Bars. Original 16bit - 240mb - 879kbps HDCD Decoded 24bit - 295mb - 1082kbps Neil Young, On The Beach. Original 16bit - 216mb - 763kbps HDCD Decoded 24bit - 265mb - 936kbps King Crimson, Islands. Original 16bit - 208mb - 640kbps HDCD Decoded 24bit - 214mb - 680kbps King Crimson, In The Wake Of Poseidon. Original 16bit - 222mb - 757kbps HDCD Decoded 24bit - 233mb - 796kbps King Crimson, Larks' Tongues In Aspic. Original 16bit - 241mb - 724kbps HDCD Decoded 24bit - 251mb - 754kbps King Crimson, Starless and Bible Black. Original 16bit - 246mb - 739kbps HDCD Decoded 24bit - 255mb - 764kbps This post has been edited by Walrusbonzo: Aug 27 2007, 21:09 |
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Aug 31 2007, 05:36
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#3
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 WavPack Developer Group: Developer (Donating) Posts: 1219 Joined: 3-January 02 From: San Francisco CA Member No.: 900 |
QUOTE (Walrusbonzo @ Aug 27 2007, 07:20)  I've started to run all my known HDCD encoded CDs through the HDCD decoder and I'm then compressing using WavPack 4.42 (-hhx6). I'll post more results once I get them. Thanks for posting your compression results, however I was very surprised that some albums would actually get smaller after the HDCD decoding. I can only imagine two reasons this could happen. One is if the original data was not compressed with the same settings (say, -hhx instead of -hhx6), and the other was if in some cases the HDCD program is actually throwing away a bit (but that wouldn't make any sense). I also tried this with 3 of my HDCDs, and found that for tracks encoded using "peak extension" you can gain considerable compression improvement by using very small block sizes. I found that --blocksize=4410 worked nicely, and on some tracks --blocksize=2205 was even better. And I'm talking like 5-10% better compression! Christopher, this is a very cool program! I actually was working on this many years ago (before WMP had this) and also found the data "key" that enables the HDCD functioning. However, I was never able to find any other information to control parameters (the signal was just either there or not, 10 times per second IIRC). Anyway, my next step was to start measuring the effect using an external HDCD decoder and a scope, but I never got that far. Anyway, congratulations!  BTW, I'm sure you have thought of this, but a very interesting complementary project would be an HDCD encoder. Then any band could release their own HDCD CDs, although Microsoft might have something to say about that!
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SCIF Extract HDCD Jan 27 2005, 08:34
Garf HDCD just uses the standard 16 bit CD Audio encodi... Jan 27 2005, 10:28
PoisonDan QUOTE (Garf @ Jan 27 2005, 11:28 AM)For playb... Jan 27 2005, 10:50 SCIF QUOTE (PoisonDan @ Jan 27 2005, 07:50 PM)But ... Jan 28 2005, 03:31 Garf Perhaps it could work when you mount the ripped wa... Jan 27 2005, 11:44 precisionist QUOTE (SCIF @ Jan 28 2005, 03:31 AM)QUOTE (Po... Jan 28 2005, 11:17 SebastianG QUOTE (precisionist @ Jan 28 2005, 02:17 AM)M... Jan 28 2005, 17:02 adlai I was always under the impression that HDCD was si... Jan 28 2005, 18:00 SebastianG QUOTE (adlai @ Jan 28 2005, 09:00 AM)I was al... Jan 28 2005, 18:59 krabapple QUOTE (SebastianG @ Jan 28 2005, 13:59) Q... Jun 27 2007, 20:44 ProtectYaNeck36 QUOTE (SebastianG @ Jan 28 2005, 11:59) Q... Oct 20 2007, 17:41 user QUOTE (SCIF @ Jan 27 2005, 08:34 AM)How I Can... Feb 1 2005, 11:31 Night Rain QUOTE (user @ Feb 1 2005, 02:31) QUOTE (S... Mar 21 2007, 12:38 ShowsOn I just noticed this thread, and given that I fina... Feb 1 2005, 13:10 user as written above, normally 24 bit playback of audi... Feb 1 2005, 13:45 precisionist QUOTE (ShowsOn @ Feb 1 2005, 01:10 PM)I resta... Feb 2 2005, 13:26 user QUOTE (precisionist @ Feb 2 2005, 01:26 PM)My... Feb 3 2005, 12:02 Pio2001 QUOTE (user @ Feb 3 2005, 01:02 PM)QUOTE (pre... Feb 3 2005, 21:25 precisionist QUOTE (Pio2001 @ Feb 3 2005, 09:25 PM)QUOTE (... Feb 4 2005, 14:23 SebastianG QUOTE (precisionist @ Feb 4 2005, 05:23 AM)Th... Feb 4 2005, 16:34 Pio2001 No software, exept maybe the combination of Window... Feb 4 2005, 23:29 krabapple QUOTE (Pio2001 @ Feb 4 2005, 17:29) No so... Feb 8 2007, 19:15 precisionist QUOTE (SebastianG @ Feb 4 2005, 04:34 PM)Does... Feb 7 2005, 17:01 Eric Carroll There has been a long running thread on the Slim D... Feb 26 2007, 06:56 markanini Wow, I wish I knew about this plugin before.
Final... Feb 27 2007, 01:40 Eric Carroll QUOTE (markanini @ Feb 26 2007, 19:40) Wo... Feb 27 2007, 04:42 markanini QUOTE (Eric Carroll @ Feb 27 2007, 05:42)... Feb 27 2007, 05:26 markanini Since I got too excited about this, here are the w... Feb 27 2007, 06:31 Eric Carroll Thanks for looking into this.
QUOTE (markanini ... Feb 27 2007, 06:57 markanini For the sake of visual comparison I adjusted the w... Feb 27 2007, 07:08 Eric Carroll Well your results sure look like what I expected t... Feb 27 2007, 07:14 markanini I used WMP 10. Feb 27 2007, 07:17 SebastianG I recall someone mentioning on the audioasylum for... Feb 27 2007, 09:49 user I have an alternative idea to capture the 2 stream... Mar 21 2007, 11:41 SebastianG I reviewed the papers about HDCD you can find on t... Jun 28 2007, 11:21 Christopher Key I've had a go at understanding hdcd; see,
htt... Aug 22 2007, 10:57 M QUOTE (Christopher Key @ Aug 22 2007, 04... Aug 22 2007, 15:33 Christopher Key QUOTE (M @ Aug 22 2007, 15:33) QUOTE (Chr... Aug 22 2007, 17:54 gabeg QUOTE (Christopher Key @ Aug 22 2007, 03... Aug 24 2007, 01:15 Christopher Key QUOTE (gabeg @ Aug 24 2007, 01:15) QUOTE ... Aug 24 2007, 11:03 MRC01 QUOTE (Christopher Key @ Aug 22 2007, 01... Oct 18 2007, 06:14 SebastianG Nice work! ... The infos about the LFSR are av... Aug 22 2007, 13:50 Christopher Key QUOTE (SebastianG @ Aug 22 2007, 13:50) N... Aug 22 2007, 14:04 eevan You can find this link at Wikipedia.
Take a look... Aug 22 2007, 15:29 Christopher Key QUOTE (eevan @ Aug 22 2007, 15:29) You ca... Aug 22 2007, 16:28 eevan I've just tried your command-line decoder on o... Aug 22 2007, 17:12 eevan Thanks!
Cheers Aug 22 2007, 17:58 SebastianG I didn't try but I'd guess the answer is: ... Aug 24 2007, 09:15 dmckean It works for me. I think the real solution needs t... Aug 25 2007, 01:24 Christopher Key QUOTE (dmckean @ Aug 25 2007, 01:24) It w... Aug 25 2007, 16:42 SebastianG QUOTE (Christopher Key @ Aug 24 2007, 12... Aug 27 2007, 08:21 Christopher Key QUOTE (SebastianG @ Aug 27 2007, 08:21) Q... Aug 27 2007, 23:17 Christopher Key QUOTE (Christopher Key @ Aug 27 2007, 23... Aug 29 2007, 19:12 krabapple QUOTE (Christopher Key @ Aug 29 2007, 14... Aug 30 2007, 20:20 Walrusbonzo Interesting stuff, I have 20~ HDCDs around here.
... Aug 27 2007, 09:45 adamjk QUOTE (Walrusbonzo @ Aug 27 2007, 10:45) ... Aug 27 2007, 11:36 Raiden hdcd.exe < 16bit.wav > 24bit.wav Aug 27 2007, 12:02 Walrusbonzo Thanks guys.... Got it working. Aug 27 2007, 13:44 SebastianG QUOTE (bryant @ Aug 31 2007, 06:36) I als... Aug 31 2007, 08:27 bryant QUOTE (SebastianG @ Aug 31 2007, 00:27) Q... Sep 1 2007, 05:49 Christopher Key QUOTE (bryant @ Aug 31 2007, 05:36) Chris... Aug 31 2007, 11:55 bryant QUOTE (Christopher Key @ Aug 31 2007, 03... Sep 1 2007, 06:14 Christopher Key QUOTE (bryant @ Sep 1 2007, 06:14) I had ... Sep 13 2007, 13:19 skamp FLAC seems to support 20 bit audio. I don't su... Aug 27 2007, 16:38 Walrusbonzo QUOTE (skamp @ Aug 27 2007, 16:38) FLAC s... Aug 27 2007, 17:43 SebastianG One could modify the decoder to output 24 bit samp... Aug 27 2007, 18:10 Walrusbonzo QUOTE (SebastianG @ Aug 27 2007, 18:10) S... Aug 27 2007, 18:30 skamp QUOTE (SebastianG @ Aug 27 2007, 19:10) S... Aug 27 2007, 18:42 lucas1985 I'm with SebastianG. This decoder should be re... Aug 27 2007, 20:09 SiriusB QUOTE (SebastianG @ Aug 27 2007, 11:10) O... Aug 30 2007, 03:38 eevan QUOTE (SiriusB @ Aug 30 2007, 04:38) Rega... Aug 30 2007, 11:39 skelly831 QUOTE (eevan @ Aug 30 2007, 03:39) When I... Aug 30 2007, 15:33 Christopher Key QUOTE (SiriusB @ Aug 30 2007, 03:38) Hi g... Aug 30 2007, 16:33 krabapple QUOTE (Christopher Key @ Aug 30 2007, 11... Aug 30 2007, 19:56 Christopher Key [quote name='krabapple' date='Aug 30 2... Aug 31 2007, 11:37 SiriusB QUOTE (Christopher Key @ Aug 31 2007, 04... Aug 31 2007, 12:14 Christopher Key QUOTE (SiriusB @ Aug 31 2007, 12:14) Rega... Aug 31 2007, 12:50 Christopher Key QUOTE (Christopher Key @ Aug 31 2007, 11... Aug 31 2007, 17:35 Christopher Key QUOTE (Christopher Key @ Aug 31 2007, 17... Aug 31 2007, 21:52 SebastianG QUOTE (Christopher Key @ Aug 31 2007, 22... Sep 3 2007, 12:27 gabeg QUOTE (SebastianG @ Sep 3 2007, 05:27) Pe... Sep 4 2007, 17:31 SebastianG QUOTE (gabeg @ Sep 4 2007, 18:31) So does... Sep 5 2007, 08:29 Christopher Key QUOTE (SebastianG @ Sep 5 2007, 08:29) QU... Sep 13 2007, 14:13 SiriusB QUOTE If anyone has access to a hardware decoder w... Sep 1 2007, 00:36 Christopher Key QUOTE (SiriusB @ Sep 1 2007, 00:36) QUOTE... Sep 1 2007, 16:09 skamp QUOTE (Christopher Key @ Sep 1 2007, 17:0... Sep 1 2007, 18:50 Christopher Key QUOTE (skamp @ Sep 1 2007, 18:50) QUOTE (... Sep 13 2007, 14:02 edwardar Can I just say I'm very excited about this too... Aug 27 2007, 23:05 Dynamic The older foobar v0.8 series do allow Playback/Bit... Aug 28 2007, 10:06 SiriusB Yes, piping makes more sense than the way I did it... Aug 31 2007, 13:20 Egor FLAC --best compression results, 1.2.0 ICL compile... Aug 31 2007, 14:38 Christopher Key QUOTE (Egor @ Aug 31 2007, 14:38) FLAC --... Aug 31 2007, 22:40 Fool_on_the_hill I did ABX on track Wag The Dog from Mark Knopfler... Aug 31 2007, 21:19 Dynamic QUOTE (Fool_on_the_hill @ Aug 31 2007, 21... Sep 1 2007, 01:13 Triza Excellent work. Christopher. Well done.
Any chan... Sep 1 2007, 00:34 Fool_on_the_hill QUOTE Dynamic Posted Yesterday, 18:13
QUOTE(... Sep 1 2007, 20:32 Dynamic Thanks for the info, FotH. I hadn't noticed th... Sep 2 2007, 18:37 Cavaille for heavens sake!!! itīs finally happe... Sep 6 2007, 18:55 |
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