Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 18 of 18
  1. #1

    Member Sales Rating: (0)

    Join Date
    Nov 2009
    Posts
    201

    Default Super hi res music from your existing CDs. Impossible? Maybe not...

    Anybody ever heard of "compressed sensing" technology. Apparently this new technology allows for sparse data to be filled in with extremely high accuracy. Like fuzzy pictures made super hi-res and accurate with no extra data. Magic! Sounds like this could be applied to existing data on compact discs. Your existing CDs could be read and transformed into super hi res audio streams by the next generation of players. WOW!



    http://www.wired.com/magazine/2010/02/ff_algorithm



    http://www.ratchetup.com/eyes/2010/0...d-sensing.html
    2 Channel
    NAD C545 -> Benchmark DAC1 -> Bryston BP6 -> Bryston 4B SST2 -> Dynaudio Contour S1.4

  2. #2

    Member Sales Rating: (0)

    Join Date
    Jul 2001
    Location
    No longer Castro Valley, California
    Posts
    5,099

    Default

    But the standard for CD remains 16/44.1

    On the other hand, if they can "clean up" the source material and properly remaster them onto CD, it can sound very good. An example would be DSD-remastered CDs....they're still regular CDs but the source material was remastered using DSD.

  3. #3

    Member Sales Rating: (12)

    Join Date
    Nov 2008
    Location
    http://audiomilitia.proboards.com
    Posts
    12,705

    Default

    Quote Originally Posted by jaxwired View Post
    Anybody ever heard of "compressed sensing" technology. Apparently this new technology allows for sparse data to be filled in with extremely high accuracy. Like fuzzy pictures made super hi-res and accurate with no extra data. Magic! Sounds like this could be applied to existing data on compact discs. Your existing CDs could be read and transformed into super hi res audio streams by the next generation of players. WOW!



    http://www.wired.com/magazine/2010/02/ff_algorithm



    http://www.ratchetup.com/eyes/2010/0...d-sensing.html

    Didn't Carver do this with the Digital Time Lens? I have this feature on my CD player and I find that it can sound almost as good as my vinyl, depending on the recording of course.:)
    HT Setup... Pioneer Elite SC-37, Polk Audio SDA-SRS 1.2TL's , Oppo BDP 93
    Two Channel... Carver Statement 450~1 Vacuum Tube Monoblocks, Dodd Mid-line Tube Linestage with Psvane 12Ax7 tubes, Pioneer Pdd 9Mk II SACD Player, Yamaha PX-3 Turntable with Sumiko BPS EvoIII, Polk Audio SDA-SRS 1.2TLs.


    "The problems we face today exist because the people who work for a living are outnumbered by those who vote for a living." Brad Shurett

  4. #4

    Member Sales Rating: (0)

    Join Date
    Nov 2009
    Posts
    201

    Default

    Quote Originally Posted by Danny Tse View Post
    But the standard for CD remains 16/44.1
    The whole point is that it does not matter what resolution of data is actually on the CD. They can turn 500mb of data into 10 gig of data and the new super hi res version created is actually extremely close to perfect. In other words, they make hi res accurate data out of low res data.

    So a CD player of the not so distant future would read whatever is on your old CDs, but would play like 10 or 50 times more data was there.
    2 Channel
    NAD C545 -> Benchmark DAC1 -> Bryston BP6 -> Bryston 4B SST2 -> Dynaudio Contour S1.4

  5. #5

    Member Sales Rating: (16)

    Join Date
    May 2005
    Location
    Six 'Burgh (Pittsburgh), PA
    Posts
    6,885

    Default

    You can't fashion a silk purse from a sow's ear!

    If the recording is mediocre, upsampling won't help it. It will help in some circumstances. Does it compare favorably to hi rez? My experience is that most of the hi rez material is better mastered (or remastered) to begin with.
    Carl

  6. #6

    Member Sales Rating: (1)

    Join Date
    Oct 2008
    Location
    Descending toward the moon in the CLEM (Chinese Lunar Excursion Module), looking for Chang'e
    Posts
    11,756

    Default

    Quote Originally Posted by nooshinjohn View Post
    Didn't Carver do this with the Digital Time Lens? I have this feature on my CD player and I find that it can sound almost as good as my vinyl, depending on the recording of course.:)
    Do you have a Carver CDP? If so which one?

    I didn't know Bob made those..but then again there are A LOT of things I don't know!

    cnh

  7. #7

    Member Sales Rating: (0)

    Join Date
    Nov 2009
    Posts
    201

    Default

    Quote Originally Posted by schwarcw View Post
    You can't fashion a silk purse from a sow's ear!

    If the recording is mediocre, upsampling won't help it. It will help in some circumstances. Does it compare favorably to hi rez? My experience is that most of the hi rez material is better mastered (or remastered) to begin with.
    This is something new that makes what was considered "impossible" by pretty much everyone, possible. It's not a marketing gimmick...

    I agree that bad recordings can't be made into good recordings. That's an entirely different issue.

    Lots of people think that hi res versions sound better than redbook CDs. Many people also think vinyl sounds better than CDs because they are not a digitally sampled vesion of the original analog sound. This technology could possibly address both of those issues.
    Last edited by jaxwired; 04-22-2010 at 05:53 PM.
    2 Channel
    NAD C545 -> Benchmark DAC1 -> Bryston BP6 -> Bryston 4B SST2 -> Dynaudio Contour S1.4

  8. #8
    Banned
    Member Sales Rating: (0)

    Join Date
    Apr 2009
    Location
    France and Costa Rica
    Posts
    987

    Default Digital Time Lens by CARVER

    Digital Time Lens by CARVER

    http://www.youtube.com/watch?v=eRNoUJcxQhY

  9. #9

    Member Sales Rating: (6)

    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    16,473

    Default

    Quote Originally Posted by cnh View Post
    Do you have a Carver CDP? If so which one?

    I didn't know Bob made those..but then again there are A LOT of things I don't know!

    cnh
    I had a Carver CDP with DTL technology, back in the mid 80's.

    Transport: Oppo BDP-103/USB HDD (flac)
    DAC/Preamp: Benchmark DAC/PRE
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Cables: Kimber Hero/8TC; DH Labs D-75

  10. #10

    Member Sales Rating: (6)

    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    16,473

    Default

    Interesting concepts.

    Transport: Oppo BDP-103/USB HDD (flac)
    DAC/Preamp: Benchmark DAC/PRE
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Cables: Kimber Hero/8TC; DH Labs D-75

  11. #11

    Member Sales Rating: (13)

    Join Date
    May 2004
    Location
    Washington
    Posts
    1,108

    Default

    I'd be curious to hear one of these cds... the technology certainly is incredibly promising for MRIs. If you could decrease the length of time needed to scan someone from 45 minutes to 1 minute or even 5 minutes, that would be HUGE.

    The efficiency of those machines relative to what we have now would be mind-boggling.
    2-Channel - So far...
    Pre: Dodd ELP
    DAC: W4S-Dac2
    Source(s): Computer and Denon 2910
    Amp: Parasound HCA-1200II
    Speakers: LSi9s - Vr3 Fortress Mod

  12. #12

    Member Sales Rating: (16)

    Join Date
    Apr 2008
    Location
    State college PA
    Posts
    1,422

    Default

    Quote Originally Posted by Bernal View Post
    Digital Time Lens by CARVER

    http://www.youtube.com/watch?v=eRNoUJcxQhY
    I want one.And a sonic hologram generator too.
    SDA-2BTL with custom IC
    Adcom 565 monoblocks--Monarchy Audio M-10 preamp
    Theta Data Basic Transport--Camelot Arthur DAC--Camelot Dragon Pro2 MK III
    Harman Kardon T-55c TT
    DH Labs Q-10 Signature Speaker Cables With Furez silver plated copper bananas
    Prophecy Cryo-Silver Reference AES/EBU
    Prophecy Cryo-Silver i2s digital cable
    4 Furutech FP-314Ag with FI-11cu Plugs/FI-11AG IECs--- Power Cords
    DH LABS REVELATIONS ICs-amps
    Revelation Audio Labs Paradise cryo-silver ICs-Source to pre

  13. #13

    Member Sales Rating: (0)

    Join Date
    Apr 2010
    Posts
    256

    Default

    honestly CDs dont sound that bad, 44.1khz will give you a 0hz-22khz response, theres no reason to increase sampling rate, now bit depth, of course. this was the original complaint of vinylphiles is the music was not as "smooth" the bit depth has alot to do with how much accuracy you have, its just like pixels, the more the better. in reality if you could look the sine wave of a recording and freeze it and view only 1/44100th of a second, you would see the wave is making sharp square transitions, where as vinyl makes perfect curved ones.

  14. #14

    Member Sales Rating: (0)

    Join Date
    Nov 2009
    Posts
    201

    Default

    Quote Originally Posted by yepimonfire View Post
    in reality if you could look the sine wave of a recording and freeze it and view only 1/44100th of a second, you would see the wave is making sharp square transitions, where as vinyl makes perfect curved ones.
    That has to be wrong. If your are right, I'm about to invent the greatest improvement in CD players ever. I call it "interpolation" or for marketing purposes "connect the dots"...
    2 Channel
    NAD C545 -> Benchmark DAC1 -> Bryston BP6 -> Bryston 4B SST2 -> Dynaudio Contour S1.4

  15. #15

    Member Sales Rating: (0)

    Join Date
    Apr 2010
    Posts
    256

    Default

    Quote Originally Posted by jaxwired View Post
    That has to be wrong. If your are right, I'm about to invent the greatest improvement in CD players ever. I call it "interpolation" or for marketing purposes "connect the dots"...
    apparently you dont understand my post or how digital music works because it already is a "connect the dots"

  16. #16

    Member Sales Rating: (1)

    Join Date
    Jul 2009
    Location
    Iowa
    Posts
    502

    Default

    Quote Originally Posted by yepimonfire View Post
    in reality if you could look the sine wave of a recording and freeze it and view only 1/44100th of a second, you would see the wave is making sharp square transitions, where as vinyl makes perfect curved ones.
    This isn't how digital playback works. A digital recording is a set of samples that get converted into an analog signal with the use of a DAC (this required for digital playback) and the output is a continuous wave. There are no stair steps or connect-the-dots going on. The original sound wave is reproduced exactly the way it looked when it was recorded. (Well, that's the goal anyway)

    If your explanation was correct, (it's not) then you are implying that your speaker cones do not move in a continuous fashion. They would jump from point to point. This simply is not possible for a variety of reasons.

    Sorry if I was a bit harsh, but I'm becoming impatient with common misunderstandings about the digital domain that so many people seem to have. Vinyl (analog) may sound better to you for various reasons but I assure you it is not more analog that digital when either is being played back. The sound wave your speakers create, whether the source be analog or digital, is purely analog.

    Edit: I know 90% of people here hate this website - but they do a good job of explaining why digital audio isn't discontinuous, stair-stepped, or connect-the-dots: http://www.audioholics.com/education...reality-part-1
    Last edited by Cpyder; 04-26-2010 at 01:33 AM.

  17. #17

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    31,215

    Default

    Quote Originally Posted by yepimonfire View Post
    honestly CDs dont sound that bad, 44.1khz will give you a 0hz-22khz response, theres no reason to increase sampling rate, now bit depth, of course. this was the original complaint of vinylphiles is the music was not as "smooth" the bit depth has alot to do with how much accuracy you have, its just like pixels, the more the better. in reality if you could look the sine wave of a recording and freeze it and view only 1/44100th of a second, you would see the wave is making sharp square transitions, where as vinyl makes perfect curved ones.
    SACD/DSD is 1 bit with a sampling rate of 2.82 MHz. It's the sampling rate that makes it sound better.
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  18. #18

    Member Sales Rating: (0)

    Join Date
    Apr 2010
    Posts
    256

    Default

    Quote Originally Posted by Cpyder View Post
    This isn't how digital playback works. A digital recording is a set of samples that get converted into an analog signal with the use of a DAC (this required for digital playback) and the output is a continuous wave. There are no stair steps or connect-the-dots going on. The original sound wave is reproduced exactly the way it looked when it was recorded. (Well, that's the goal anyway)

    If your explanation was correct, (it's not) then you are implying that your speaker cones do not move in a continuous fashion. They would jump from point to point. This simply is not possible for a variety of reasons.

    Sorry if I was a bit harsh, but I'm becoming impatient with common misunderstandings about the digital domain that so many people seem to have. Vinyl (analog) may sound better to you for various reasons but I assure you it is not more analog that digital when either is being played back. The sound wave your speakers create, whether the source be analog or digital, is purely analog.

    Edit: I know 90% of people here hate this website - but they do a good job of explaining why digital audio isn't discontinuous, stair-stepped, or connect-the-dots: http://www.audioholics.com/education...reality-part-1
    i understand that, i was stating why vinylphiles say it sounds better. the real reason why most people hear a difference is not because of the medium, but because sound engineers have brutally murdered and raped dynamic range.

    and audioholics is full of a bunch of wanna-be know it alls, first i buy sony speakers, they destroy my rep and name call me and label me as a "certified bose consumer" then i buy a polk sub, same thing. as far as know-it-alls go, some moron tryed to convince me that the polk sub was a mid-bass woofer because it did not extend down to 20hz, when i corrected him and told him mid-bass was roughly 100-200hz, i was threatened with a ban.
    Last edited by yepimonfire; 04-26-2010 at 02:16 AM.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Impossible to find used Pio. Elite SC-05?
    By polkapolka in forum Electronics
    Replies: 22
    Last Post: 04-13-2009, 05:36 PM
  2. More music super cheap
    By phipiper10 in forum Music & Movies
    Replies: 0
    Last Post: 10-26-2007, 08:49 PM
  3. Mission Impossible 3
    By MacLeod in forum Music & Movies
    Replies: 0
    Last Post: 01-11-2007, 06:49 PM
  4. Mission: Impossible 3 to shoot partly in Shanghai
    By Danny Tse in forum Music & Movies
    Replies: 1
    Last Post: 07-07-2005, 10:15 AM
  5. Doing the impossible....
    By Zero in forum Subwoofer Hookup & Bass Management
    Replies: 7
    Last Post: 12-14-2002, 11:44 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts