How do DDCs improve audio? (Denafrips Hermes, Pi2AES, Schiit Eitr, ifi Igalvanic)

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(All links are un-affiliated)
Ropieee: https://ropieee.org/
Denafrips Hermes: https://www.vinshineaudio.com/product-page/denafrips-hermes
Pi2AES: https://www.pi2design.com/pi2aes.html
ifi iGalvanic: https://ifi-audio.com/products/nano-igalvanic3-0/
Schiit Eitr: https://www.hifishark.com/search?q=schiit+eitr
SMS200 Ultra: https://www.sotm-audio.com/sotmwp/english/portfolio-item/sms-200ultra/

00:00 - Intro
00:55 - Devices included in video
01:48 - Data Integrity
02:30 - Electrical Noise
03:30 - Evidence of performance impact due to noise
05:30 - Jitter / Timing of data
07:28 - How can a DDC improve jitter performance?
08:28 - I2S
09:18 - Measurements of DDCs
11:42 - Measurements of I2S vs SPDIF
12:25 - Denafrips Hermes vs Pi2AES
16:38 - How audible is Jitter?
18:05 - Bad SPDIF inputs, and PLLs
19:53 - Patron thank yous

Further reading on jitter/DDCs:

https://www.aes.org/e-lib/browse.cfm?elib=8354

https://headfonics.com/what-is-jitter-in-audio/#:~:text=Jitter%20is%20the%20time%20distortions,of%20a%20digital%20audio%20signal.&text=Jitter%20is%20thus%20a%20deviation,deviation%20of%20the%20sampling%20rate).

https://ifi-audio.com/wp-content/uploads/2018/07/iFi-audio-iGalvanic3.0-Tech-Notes-1.pdf

https://www.stereophile.com/reference/193jitter/index.html#:~:text=%22Clock%20jitter%22%20refers%20to%20timing,musical%20quality%20of%20digital%20audio.&text=Stereophile%20has%20obtained%20a%20unique,CD%20players%20and%20digital%20processors.

https://www.stereophile.com/content/case-jitters

https://benchmarkmedia.com/blogs/application_notes/12142221-jitter-and-its-effects

Видео How do DDCs improve audio? (Denafrips Hermes, Pi2AES, Schiit Eitr, ifi Igalvanic) канала GoldenSound