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   Home » Didital Things » The Museatex Bidat pages. (58 posts, 3 pages)
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  »  New  BiDat: One more output..  Output Quandry...  Didital Things  Forum     5  57891  06-01-2005
  »  New  A littlie D-War: Bidat vs. Lavry Gold..  TL0 3.0 Like Less Sharp DACs...  Didital Things  Forum     14  202473  12-18-2005
  »  New  Any good sounding AES/EBU interfaces out there?..  Better keep with AN cables...  Didital Things  Forum     53  429141  09-17-2007
  »  New  Recording options: Pacific Microsonics vs. Lavry Gold...  Pacific Microsonics vs. Lavry Gold in D/A mode....  Didital Things  Forum     24  274753  09-27-2007
  »  New  Digi Redux; Drive 1 transport and iDAT-44+ DAC..  Moray James SPDIF!...  Didital Things  Forum     27  230627  09-28-2007
  »  New  DA architecture: True Multibit vs. anything else...  If it might…....  Didital Things  Forum     17  178277  12-09-2007
  »  New  The Lavry Gold DA924 ++..  A new Lavry Gold?...  Didital Things  Forum     25  289548  03-28-2008
11-07-2013 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 617
Joined on 01-07-2006

Post #: 51
Post ID: 20245
Reply to: 20243
Balanced DAC's
fiogf49gjkf0d
I did not have time to read the articles carefully, but:

"The IDAT’s D/A conversion stage is also unique."

"In the IDAT, two DACs per channel are used for each half of the balanced data signal instead of one."

...the very idea of balancing DAC's is not so unique--enough to search e.g. diyaudio.com to see that
the subject has been well discussed (albeit only technically, of course, not much sound-wise).
I have my own plans to assembly such a DAC one day (but witout resolution doubling like Meitner).

Cheers,
N-set



Cheers,
Jarek
STACORE
11-07-2013 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,657
Joined on 10-12-2006

Post #: 52
Post ID: 20246
Reply to: 20243
Well...
fiogf49gjkf0d
Thanks, Romy.

Nice that the PF reviewer is so happy with his battery powered iDAT 44+. While I agree that it is a good DAC option, I have to add that we are still talking "digital".  With all problems of LPs and LP playback, IMO this is still the way to go, at least in terms of the "elements that make up Music", and the "resultant whole".  I would put HS, reel-to-reel "ahead" of LPs, but the entire tape thing is so fraught with problems - including extremely limited high-quality program - that it's become practically untenable.  As for streaming digital, what I have heard to date is not worthy of discussion in this context, despite the satisfaction derived from it by a given user.


Paul S
11-07-2013 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,156
Joined on 05-28-2004

Post #: 53
Post ID: 20247
Reply to: 20245
Read and think more.
fiogf49gjkf0d
N-set,

In think you need keep reading as the balancing DAC is not something that make Bidat unique. I pretty sure 24 year back it was but not now. The whole idea of IDAT is (among many other things) that it dynamically applies type of digital algorithm (I think it is filtration type) based upon the length of signal. Pretend that that your short and laud notes are rendered by one DAC but your legatos are by another. I know it does not sound too good but whatever it is it does works. Please do not send to diyaudio.com. They can discuss whatever they want and frankly I am not so inelegant to understand their digital discussion. There are however some subjects that I do know and what I see the same diyaudio people do their “discussions” in there then I can testify they are morons.

I do not make any claim about IDAT, neither need I to. I just presented information.


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
11-07-2013 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 617
Joined on 01-07-2006

Post #: 54
Post ID: 20248
Reply to: 20247
1993!
fiogf49gjkf0d
Ok, I have not fully seen the temporal context, it was 1993!! Chapeau!

I did read about the algorithm, I just reacted to the claimes about the balanced DAC being "also unique",
which I quoted in the first line.
Now I understand, it was in its time. Diyaudio? Well, when it comes to technical things, I see
a lot of good knowledge and experience there. Probably they should not have the word "audio"
in the name of the community, as they do not deal with audio per se, though.



Cheers,
Jarek
STACORE
09-30-2015 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,156
Joined on 05-28-2004

Post #: 55
Post ID: 22020
Reply to: 6604
An interesting article....
fiogf49gjkf0d
http://www.soundbsessive.com/room/the-meitner-idat-da-interpolation-algorithm


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-28-2021 Post does not mapped to Knowledge Tree
tomand
Posts 1
Joined on 03-28-2021

Post #: 56
Post ID: 26086
Reply to: 22020
Bidat schematic
Hi does anybody have a BiDat schematic? I need it badly, I would be grateful for your help.
03-28-2021 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,657
Joined on 10-12-2006

Post #: 57
Post ID: 26087
Reply to: 26086
Guarded Turf
Hi, Tomand
Anything BiDAT would likely be known by, also the express purview of, John Wright, in Canada. He is friendly and accommodating, but this is his livelihood, after all. Why do you need the schematic so badly?


Best regards,
Paul S
04-06-2021 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,156
Joined on 05-28-2004

Post #: 58
Post ID: 26095
Reply to: 26086
Good lack...
Tomand, John is probably the last person who supports Bidat. I think you can get Bidat from Meitner himself; I do not see he would be keeping it as a secret.  Typically, it is not practicable to ask pro people to share schematic but Bidat is a cult unit, and it might work out for you. Jim Aud from Purist Audio Design has a son-in-law who is digital engineer, and he was working on his own version of Bidat and he should know Bidat’s schematic very well. I do not know what your objective is to find schematic but be careful and do not sink into cult believe. We all presume that John is the one who know Bidat well and he told me more then once that the reasons why Bidat sound so good has nothing to do with what people know about Bidat. So, make sure that what you are looking has properly aligned reasoning.


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
Page 3 of 3 (58 items) Select Pages:  « 1 2 3
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  BiDat: One more output..  Output Quandry...  Didital Things  Forum     5  57891  06-01-2005
  »  New  A littlie D-War: Bidat vs. Lavry Gold..  TL0 3.0 Like Less Sharp DACs...  Didital Things  Forum     14  202473  12-18-2005
  »  New  Any good sounding AES/EBU interfaces out there?..  Better keep with AN cables...  Didital Things  Forum     53  429141  09-17-2007
  »  New  Recording options: Pacific Microsonics vs. Lavry Gold...  Pacific Microsonics vs. Lavry Gold in D/A mode....  Didital Things  Forum     24  274753  09-27-2007
  »  New  Digi Redux; Drive 1 transport and iDAT-44+ DAC..  Moray James SPDIF!...  Didital Things  Forum     27  230627  09-28-2007
  »  New  DA architecture: True Multibit vs. anything else...  If it might…....  Didital Things  Forum     17  178277  12-09-2007
  »  New  The Lavry Gold DA924 ++..  A new Lavry Gold?...  Didital Things  Forum     25  289548  03-28-2008
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