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 2,658 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 10,160 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 10,160 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 2,658 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 10,160 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