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  1. Losses in 1-bit DSD vs multi-bit PCM

    Modern PCM sigma-delta converters produce much lower error signals than1-bit sigma-delta DSD converters. The errors in the DSD system are due to the1-bit quantization that occurs in 1-bit sigma-delta DSD converters. Multi-bit PCMsigma-delta converters can be fully dithered and do not suffer from this un-dithered truncation. Plus, every added bit reduces the noise signal by 6 dB. A 4-bit sigma-delta converter is 24 dB quieter than a 1-bit sigma-delta DSD converter. Right from the start, 1-bit DSD ...

    Updated 05-22-2015 at 05:08 PM by John Siau (typo)

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  2. Official Roon User Impressions Thread

    [QUOTE=magicknow;426971][QUOTE=dannyroonlabs

    Danny will you be demoing Roon at the THE Show in Newport? If so what room?[/QUOTE]

    I second. Let the SQ folks do SQ and the UI/Library folks do that part.
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  3. USB and Other Digital Cables Round Up as of 5/15/2015

    USB and Other Digital Cables Round Up as of 5/15/2015

    * Indicates the cable is an update since the previous posting.

    When it’s time to buy USB or other digital cables, what’s the first thing to do? Well, you’re likely to turn to the audiophile mags and Internet sources for reviews and opinions. Info is out there but scattered about, so here is a round up that doesn’t pretend to be comprehensive to assist you.

    This round up is divided into a USB Cables ...
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  4. Audirvana new 2.0.11 version - quite major step up to the right direction!

    Quote Originally Posted by damien78 View Post
    Just released 2.0.11 that brings bug fixes & UI improvements:

    • Add warning about still running background tasks when application is quitting
    • Better detection of Bluetooth devices to automatically deactivate Direct Mode for them
    • Add iFi DSD DACs, and DidiT High-End DAC212 to native DSD DACs white list
    • Various User Interface improvements (pause release upon double click on track, Cmd F shortcut for Find/Search text, ...)
    • Bug fixes:
      • Fix manual playlist reordering
    ...
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  5. Lyn Stanley Poitions download - files will be recreated.

    Quote Originally Posted by mkrzych View Post
    Hello guys,
    First I'd like to thank you very much for Cookie and Lyn to care of me and additional work they did to resolve the issue and explain to me what happened. They service to customers is EXTRAORDINARY!

    Here is a part of Cookie's respond:

    "We are creating all new files after testing numerous converters. We have now chosen the one that most closely reflects the original mastered sound with regard to our ears and the meters. We have incorporated
    ...
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  6. The absolute sound idea is still relevant to audiophiles

    All,

    Where did this 'absolute sound' thing come from ?

    First off, I did not invent this stuff. My original understanding of the absolute sound comes from Harry Pearson and early issues of his magazine 'The Absolute Sound' As best as I can tell, he invented the concept, and the methodology of applying it to equipment and recording reviews.

    The Absolute Sound was, and is:
    the name of a magazine
    an audacious claim;
    the name of the reference
    ...
  7. Review of 30 years old CD player - - are the antique CD-players still best?

    Quote Originally Posted by mkrzych View Post
    Amazing article and conclusion for always running forward technology advances - but not always in the right directions I think :-/


    Philips CD 304 and 304 MkII - are the antique CD-players still best?
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  8. A bit of a break

    by , 03-04-2015 at 03:08 PM (The Ill-Tempered Audiophool)
    I think I am need of a bit of a break from here.

    I enjoy a good heated discussion as much as anyone, but being repeatedly stalked in "cyber-space," having my photograph ripped off my employer's website and posted here without my permission, and being accused (falsely) of making "racist" comments against Australians (with not one shred of evidence ever offered), makes me realize my non-anonymous presence here could potentially harm my job, my personal and professional ...
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  9. Mark Knopfler - Tracker - A Film By Henrik Hansen

    Quote Originally Posted by The Computer Audiophile View Post
    Can't wait for Mark's new album in March. According to this neat little video he used tape for the entire project rather than record digitally.


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  10. Network Resource Requirements/Testing & Observations of Streamed Music Files Located On A NAS Device

    Hello,

    This blog post will be a work in progress as time and motivation allow but in this first go round I wanted to start off by talking about the bandwidth requirements (As Observed) from a networking perspective while streaming several different flavors of music files found in your average Audiophiles music library.

    To date, I have not yet seen anyone post this sort of information on the web showing the actual "flow" patterns and behavior of the various ...
  11. 1 or 2 partitions?

    I have to try listening myself and hear what happens.
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  12. 1 or 2 partitions?

    I have to try listening myself and hear what happens.
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  13. Squarewaves from DACs

    Based on request here, I made some more square wave scope measurements using a high resolution scope for comparison with earlier measurements of DSC1.




    Here are 7 kHz square wave results for the DSC1.

    DSD128:
    square7k-dsd128.png

    DSD256:
    square7k-dsd256.png

    DSD512:
    square7k-dsd512.png




    Here are 7 kHz square wave results for the iFi iDSD Micro. ...
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  14. Apple TV as a poor-man's Sonos system

    by , 12-27-2014 at 05:35 PM (The Ill-Tempered Audiophool)
    There are (at least) three ways one can use an Apple TV to play music:

    (1) Airplay streaming from a computer, iPod, iPhone, etc. This works in pretty much the same way as airplay to an Airport Express, or some airplay-enabled speakers like the Zeppelin Air. The streaming is done close to real-time, with a player application (like iTunes, or the player software on an iPhone) controlling it. (Recent versions of OS X with the right hardware can do this from the operating system level, ...
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  15. An absolute beginner's guide to seting up computer audio on Apple OS X, Part II

    by , 12-21-2014 at 03:07 PM (The Ill-Tempered Audiophool)
    Quote Originally Posted by Ajax View Post
    Hi Bill,

    Well done on your blog, which I thought was concise and easy to follow. I've recently completed an iTunes instruction guide for friends and have included a couple of items below that you may or may not think are worth including in your blog. It would be nice if we could have all this in one place so please feel free to cut and paste as you see fit.


    USING AN EXTERNAL HARD DRIVE TO STORE YOUR MUSIC

    Many Laptops (and some older desktops)
    ...
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