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Great presentation of modern DACs
http://dcaudiodiy.com/phpBB3/viewtopic.php?f=5&t=2202		 Page 1 of 1
Author:  tomp [ January 12th, 2023, 2:39 pm ]
Post subject:  Great presentation of modern DACs
I just finished a video of a presentation given last year by an AES member on how modern DACS achieve 32 bit performance and if it is really necessary. If you are a member, it is worth watching as it goes into the internal methods used in the DACs to achieve high quality output and the pitfalls. I'm including the introduction and summary slides.

Tom

Attachments:
32 bit DAC lecture introduction.pdf [76.6 KiB]
Downloaded 123 times
32 bit DAC lecture summary.pdf [55.02 KiB]
Downloaded 123 times
Author:  HAL [ January 12th, 2023, 2:48 pm ]
Post subject:  Re: Great presentation of modern DACs
tomp,
Thanks for the presentations on 32bit DAC's. Will be interesting reads.
Author:  DaveR [ January 12th, 2023, 3:16 pm ]
Post subject:  Re: Great presentation of modern DACs
Unfortunately those two pdfs are just the introduction and summary, not the meat. I suspect a lot of folks here would disagree with the summary in general. I do agree with it.
Author:  Guy [ January 12th, 2023, 3:34 pm ]
Post subject:  Re: Great presentation of modern DACs
Thanks, Tomp,

Any chance on posting the details in the middle of the presentation?

Thanks! :)
Author:  brombo [ January 12th, 2023, 3:51 pm ]
Post subject:  Re: Great presentation of modern DACs
While on this topic does anyone know anything about the following kit -

https://www.diyinhk.com/shop/audio-kits ... o-dac.html

My interest in 8-channel dacs is for use in a stereo dsp crossover.
Author:  tomp [ January 12th, 2023, 5:20 pm ]
Post subject:  Re: Great presentation of modern DACs
Guy wrote:
Thanks, Tomp,

Any chance on posting the details in the middle of the presentation?

Thanks! :)

Way to long with not only lots of slides, but you need the commentary as well. Some things you need to go to the original to get the full info.

Tom
Author:  Roscoe Primrose [ January 12th, 2023, 5:29 pm ]
Post subject:  Re: Great presentation of modern DACs
DaveR wrote:
Unfortunately those two pdfs are just the introduction and summary, not the meat. I suspect a lot of folks here would disagree with the summary in general. I do agree with it.


Practical analog circuity can't support 24bits, never mind 32....

Roscoe
Author:  tomp [ January 12th, 2023, 6:56 pm ]
Post subject:  Re: Great presentation of modern DACs
Correct, but the rational is not to get greater dynamic range but to allow digital volume control without increase in noise. That is a worthwhile objective.
Author:  HAL [ January 13th, 2023, 9:48 am ]
Post subject:  Re: Great presentation of modern DACs
The AK4499 32bit DAC's digital attenuator with 0.5dB steps is very transparent compared to analog volume controls in my headphone amps.
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