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Thread: DIGITAL

  1. #1
    Senior Member richluvsound's Avatar
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    DIGITAL

    This probably asking a lot ,but I would like to see its possible to have a thread dedicated to digital equipment . There are a few guys and gals here that have a lot of knowledge on the theory and application of a digital signal.

    Considering most of us use CD, DVD,iTunes,Tact and Deqx ( digital ) I feel it would very useful to have all digital info in one place for quick reference and general reading.

    please feel free to toss in your cents worth !

    Rich

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    Senior Member BMWCCA's Avatar
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    RIP 2013 Rolf's Avatar
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    Quote Originally Posted by richluvsound View Post
    This probably asking a lot ,but I would like to see its possible to have a thread dedicated to digital equipment . There are a few guys and gals here that have a lot of knowledge on the theory and application of a digital signal.

    Considering most of us use CD, DVD,iTunes,Tact and Deqx ( digital ) I feel it would very useful to have all digital info in one place for quick reference and general reading.

    please feel free to toss in your cents worth !

    Rich
    Just wondering, what exactly do you have in mind? Experience with digital equipment, including digital cables, and stop with analog power amps, or do you also mean digital power amps as well.

  4. #4
    Senior Member richluvsound's Avatar
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    Everything !

    Hi Rolf,

    there is a ton of information here already . Readswift,Ian and many others seem to have some very useful information. Maybe just simple things ie, how does a dac work, why is a digital amp great for LF and not the rest of the bandwidth ? Really interesting articles ,like the one posted by Jblog about modern mastering techniques and the subsequent impact on sound quality. These are the kind of subjects that could be found in a DIGITAL thread.

    Perhaps its not a very good idea ,but its an idea I'm putting out there for feed-back.

    Rich

  5. #5
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    Who ever said digital was good for LP........? Its one of the worst effected areas by Jitter issues ..apparently.

    I tend to think its a whole sphere of knowledge in itself. In consumer scenarios its fairly cut and dried. You plug it in and it goes and you can mess with a lot of money to make it a bit better.

    In Pro scenarious like recording and processing that is where you need a thinking cap. I dont think the latter is relevent to these forums.

  6. #6
    RIP 2013 Rolf's Avatar
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    Quote Originally Posted by richluvsound View Post
    Hi Rolf,

    there is a ton of information here already . Readswift,Ian and many others seem to have some very useful information. Maybe just simple things ie, how does a dac work, why is a digital amp great for LF and not the rest of the bandwidth ? Really interesting articles ,like the one posted by Jblog about modern mastering techniques and the subsequent impact on sound quality. These are the kind of subjects that could be found in a DIGITAL thread.

    Perhaps its not a very good idea ,but its an idea I'm putting out there for feed-back.

    Rich
    So ... you are not interested in personal experience? I don't look around for articles, and I do not know how a DAC works.

    I know a lot about sound quality, what sound better and what sounds not so good. Analog or digital. From the source to the amp. But that is what I can. No detailed technical know-how of how it works, and I don't really care how, as long as it works. I leave that to the tech people.

    Sound quality is what counts for me.

  7. #7
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    Quote Originally Posted by richluvsound View Post
    Hi Rolf,

    there is a ton of information here already . Readswift,Ian and many others seem to have some very useful information. Maybe just simple things ie, how does a dac work, why is a digital amp great for LF and not the rest of the bandwidth ? Really interesting articles ,like the one posted by Jblog about modern mastering techniques and the subsequent impact on sound quality. These are the kind of subjects that could be found in a DIGITAL thread.

    Perhaps its not a very good idea ,but its an idea I'm putting out there for feed-back.

    Rich
    I will try and find some good reference on "How it Works" for you when time permits.

    Here is a good place to start on the basics:

    http://www.lavryengineering.com/index_html.html

    http://www.lavryengineering.com/docu...ing_Theory.pdf

    http://www.lavryengineering.com/foru...ital_Audio.pdf

    http://www.lavryengineering.com/white_papers/dither.pdf

    http://www.lavryengineering.com/white_papers/dnf.pdf

    http://www.lavryengineering.com/white_papers/fir.pdf

    http://www.lavryengineering.com/white_papers/sample.pdf

    http://www.lavryengineering.com/white_papers/jitter.pdf

    http://sound.westhost.com/articles/dsp.htm


    Any subjective information about digital sound quality or just sound quality is just an opinion and not necessarily one you will personally agree with.

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    Senior Member CONVERGENCE's Avatar
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    This has to do with recordings. Commercial CD are all 16 bit 44KHZ.
    If you want a copy of a master tape at 24 bit 96KHZ you will need a special CD player to play it back.

    Most master recordings now are recorded at 24 bit 96KHZ The resolution and dynamic range is incredible. It's like comparing CD DA to MP3.

    Any way . One you cannot get masters on the market. These are reserved for films and commercials or other special presentations.

    The prices for a single top 40 hit from the 70's can run you up in the 15K $.And you need to sign a contract.

    Some people think that DVD sound has a resolution of 24/ 96 wrong
    the format also carries the image.

    ............................
    .

  9. #9
    JBL 4645
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    Quote Originally Posted by CONVERGENCE View Post
    This has to do with recordings. Commercial CD are all 16 bit 44KHZ.
    If you want a copy of a master tape at 24 bit 96KHZ you will need a special CD player to play it back.

    Most master recordings now are recorded at 24 bit 96KHZ The resolution and dynamic range is incredible. It's like comparing CD DA to MP3.

    Any way . One you cannot get masters on the market. These are reserved for films and commercials or other special presentations.

    The prices for a single top 40 hit from the 70's can run you up in the 15K $.And you need to sign a contract.

    Some people think that DVD sound has a resolution of 24/ 96 wrong
    the format also carries the image.

    ............................
    .
    CONVERGENCE

    Hence something needs to be sacrificed, am I wrong there?

    I have 20 bit CD dts Titanic and a few Jean Michael Jarre at 24 bit.

    So what it is the bit rate on laserdisc for dts, is it 20 bit?

    Is the bit rate for sound different for Superbit DVD?

  10. #10
    Senior Member richluvsound's Avatar
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    many thanks

    Ian,

    that stuff from Lavry is just the ticket. Clear and free off opinion. It makes for some interesting breakfast reading. Helps explain Jitter and areas that had
    me looking vague when being bombarded with TEK TALK by some parasitic high-end hifi dealer.

    Rich

  11. #11
    Senior Member CONVERGENCE's Avatar
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    Quote Originally Posted by JBL 4645 View Post
    CONVERGENCE

    Hence something needs to be sacrificed, am I wrong there?

    I have 20 bit CD dts Titanic and a few Jean Michael Jarre at 24 bit.

    So what it is the bit rate on laserdisc for dts, is it 20 bit?

    Is the bit rate for sound different for Superbit DVD?
    Will they release at 16 or 24 that is the queation?


    True HD supports 24 bit, 96 kHz audio channels.

    PCM: 48 kHz or 96 kHz sampling rate, 16 bit or 24 bit
    AC-3: 48 kHz sampling rate, 1 to 5.1 (6) channels
    DTS: 48 kHz or 96 kHz sampling rate, 2 to 6.1 channels
    MP2: 48 kHz sampling rate, 1 to 7.1 channels

    ...........................

    You can buy DVDA That's a DVD with audio only . The selection is limited but the bit rate is 24 with a sampling of up to 192 KHZ.

    ,,,,,,,,,,,,,,,,,,,,,,,,,,

  12. #12
    Senior Member macaroonie's Avatar
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    Salient

    Thats near the Isle of Wight innit

  13. #13
    Senior Member richluvsound's Avatar
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    I give in


  14. #14
    JBL 4645
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    Quote Originally Posted by CONVERGENCE View Post
    Will they release at 16 or 24 that is the queation?


    True HD supports 24 bit, 96 kHz audio channels.

    PCM: 48 kHz or 96 kHz sampling rate, 16 bit or 24 bit
    AC-3: 48 kHz sampling rate, 1 to 5.1 (6) channels
    DTS: 48 kHz or 96 kHz sampling rate, 2 to 6.1 channels
    MP2: 48 kHz sampling rate, 1 to 7.1 channels

    ...........................

    You can buy DVDA That's a DVD with audio only . The selection is limited but the bit rate is 24 with a sampling of up to 192 KHZ.

    ,,,,,,,,,,,,,,,,,,,,,,,,,,
    Thanks. So if I want 24 bit on DVD, I’m forced to buy HD-DVD or Bluray, hmm let me think about that for a few years.

  15. #15
    JBL 4645
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    Quote Originally Posted by richluvsound View Post
    Rich

    Just use the force mate.



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