Headphone Reviews & News Blog from hifiheadphones.co.uk
  • Home
  • News
  • Full Reviews
  • How-To’s
  • Best Of
  • Videos
  • About Us
  • Shop
No Result
View All Result
Headphone Reviews & News Blog from hifiheadphones.co.uk
  • Home
  • News
  • Full Reviews
  • How-To’s
  • Best Of
  • Videos
  • About Us
  • Shop
No Result
View All Result
Headphone Reviews & News Blog from hifiheadphones.co.uk
No Result
View All Result

JDS Labs Optical input drop-outs with LG/Samsung TV’s

by Oscar
December 14, 2021
in How-To's
Home How-To's

This will be an issue that will effect a few users of JDS Labs DACs, so JDS Labs have issued a statement along with a fix

** We first shared our findings with engineers at LG in August 2021. LG has acknowledged the behavior, but no official resolution has been shared by LG as of December 2021. Please see below for a high level explanation, or skip to Solution. **

Symptom: While using the optical output from an LG C8/C9 or Samsung TV in conjunction with a high-performance DAC, you may experience audio dropouts several times per minute.

Cause: In short, the optical output of symptomatic TVs show pronounced jitter and low level n*100Hz transients throughout the audible frequency range. The default jitter rejection values used by ESS based DACs recognize the extreme noise as signal errors, so the DAC automatically disconnects and reconnects in attempt to achieve a more stable lock of the incoming S/PDIF signal.

This behavior is the result of the ESS’s otherwise excellent jitter recovery logic. The patented jitter eliminator must periodically unlock and re-sync because the digital stream is so poor. AKM and Wolfson S/PDIF receivers are not asynchronous, so they pass along any significant jitter from an optical source, thus, eliminating any chance of a momentary pause for an S/PDIF re-locking event. Re-locks are ordinarily quite rare–you should never encounter this behavior with default jitter rejection values. And under typical circumstances, ESS’s asynchronous jitter elimination results in dramatically higher jitter performance than older DACs without this technology.

Analysis: Audio Precision’s APx555 has the ability to interpolate a digital stream into time and frequency domains to analyze how it would render if perfectly converted from digital back to analog (i.e., without a DAC in the test setup). We used the ASIO4ALL driver to observe SINAD of a 1kHz test tone reconstructed directly from the digital S/PDIF output: 

  • LG 50UN7300PUF Optical S/PDIF Output: 81 dB
  • AsRock Motherboard Optical S/PDIF Output: 141 dB

Solution: DACs featuring asynchronous jitter recovery require relaxed jitter rejection to support noisy optical signals.

For Atom DAC+, please install one of the custom firmware builds below to eliminate dropouts from poor optical signals:

  • AtomDAC-Reg12-BA-DPLL-11 (slightly forgiving, adequate for most TVs)
  • AtomDAC-Reg12-FA-DPLL-15 (most forgiving)

https://jdslabs.com/support/troubleshooting/#category-1-question-3

Previous Post

Audeze CRBN Electrostatic Headphone Review

Next Post

Campfire Audio Saber Review

Related Posts

headphone hygiene cleaning tips
How-To's

Headphone Hygiene – Keeping your headphones clean

by John
April 20, 2022
Passive Isolation or ANC?
How-To's

Passive Isolation or ANC?

by Oscar
May 10, 2022
Eartips! The guide by HiFiHeadphones
How-To's

Eartips! The guide by HiFiHeadphones

by Oscar
May 11, 2022
Next Post
Campfire Audio Saber Review

Campfire Audio Saber Review

64 Audio's U6t Gets 2022 Underway With Honours

Final ZE3000 True Wireless Earphone Review

Final ZE3000 True Wireless Earphone Review

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

I agree to the Terms & Conditions and Privacy Policy.

Featured Article

Our Recommendations

Recent Posts

  • Trusted Reviews take on the Lypertek Z5
  • Latest Final UX3000 Reviews are in!
  • New Audeze MM-500 Planar Headphones
  • New Noble IEMs
  • Cleer Audio Release Arc True Wireless Earbuds

Latest YouTube Videos

We often show off high end equipment, but here are our top 5 sub £100 bargains!

Blog Article: https://blog.hifiheadphones.co.uk/top-5-portable-audio-devices-for-under-100/

Periodic Audio Rhodium - https://www.hifiheadphones.co.uk/collections/amps-dacs/products/periodic-audio-rhodium-portable-hi-res-usb-c-dac-headphone-amplifier

Final E500 - https://www.hifiheadphones.co.uk/products/final-e500-in-ear-isolating-earphones

SoundMAGIC E11c - https://www.hifiheadphones.co.uk/products/final-e500-in-ear-isolating-earphones

Lypertek SoundFree S20 - https://www.hifiheadphones.co.uk/products/lypertek-soundfree-s20-true-wireless-in-ear-isolating-earphones-black

SoundMAGIC P23BT - https://www.hifiheadphones.co.uk/products/soundmagic-p23bt-portable-wireless-headphones-black

0:00 - Intro
0:19 - Periodic Audio Rhodium
0:48 - Final E500
1:15 - SoundMAGIC E11c
1:41 - Lypertek SoundFree S20
2:08 - SoundMAGIC P23BT
2:33 - Conclusion

------------------------------------------------------------------------------------------

Website:
http://www.hifiheadphones.co.uk/

Latest Reviews:
https://www.hifiheadphones.co.uk/blog...

Facebook:
https://www.facebook.com/hifiheadphones

Instagram: 
https://www.instagram.com/hifiheadpho...

------------------------------------------------------------------------------------------

OUR GEAR:

- Panasonic Lumix S1
- Panasonic Lumix S Pro 24-70mm
- Panasonic Lumix S Pro f/1.4 50mm

- Panasonic Lumix S5
- Panasonic Lumix S 20-60mm f/3.5-5.6

- Atomos Ninja V
- Rotolight NEO
- Godox SL60W
- RODE Wireless Go 2
- Tascam DR-70D Audio Recorder
Top 5 Budget Headphone Audio Deals
YouTube Video VVVFVzZGdExTdDlIOW54RWtZamJ5MGVBLklFSEUtUEh3aGFV
This little DAC/Amp is such an easy product to recommend, you get a crisp and clean sound for under £50 - what's not to love? 

Watch the video to find out why we love the Rhodium so much.

Buy Now: https://www.hifiheadphones.co.uk/products/periodic-audio-rhodium-portable-hi-res-usb-c-dac-headphone-amplifier

0:00 - Intro
0:32 - Design and Features
1:52 - Technical features
2:08 - Sound Quality
3:06 - Conclusion

------------------------------------------------------------------------------------------

Website:
http://www.hifiheadphones.co.uk/

Latest Reviews:
https://www.hifiheadphones.co.uk/blog...

Facebook:
https://www.facebook.com/hifiheadphones

Instagram: 
https://www.instagram.com/hifiheadpho...

------------------------------------------------------------------------------------------

OUR GEAR:

- Panasonic Lumix S1
- Panasonic Lumix S Pro 24-70mm
- Panasonic Lumix S Pro f/1.4 50mm

- Panasonic Lumix S5
- Panasonic Lumix S 20-60mm f/3.5-5.6

- Atomos Ninja V
- Rotolight NEO
- Godox SL60W
- RODE Wireless Go 2
- Tascam DR-70D Audio Recorder
Periodic Audio Rhodium USB-C Dongle DAC/Amp Review
YouTube Video VVVFVzZGdExTdDlIOW54RWtZamJ5MGVBLlhJWHJhMmlzZW5Z
JDS Labs decided to skip the Element II+ and designed the Element III from the ground up - around a different DAC Chip. They have added a digital volume attenuator along with optical input, and decided to implement changes that make an audible difference instead of chasing specs.

Buy here: https://www.hifiheadphones.co.uk/products/jds-labs-element-iii-headphone-amplifier-usb-dac-copper-ring-uk-plug

Full blog review: https://blog.hifiheadphones.co.uk/jds-labs-element-iii-review/

JDS Labs Blog: https://blog.jdslabs.com/2022/01/jds-labs-element-iii-official-release-benchmarks/

0:00 - Intro
0:20 - development of Element III
0:51 - Design / Features
3:19 - Sound
5:06 - Conclusion

------------------------------------------------------------------------------------------

Website:
http://www.hifiheadphones.co.uk/

Latest Reviews:
https://www.hifiheadphones.co.uk/blog...

Facebook:
https://www.facebook.com/hifiheadphones

Instagram: 
https://www.instagram.com/hifiheadpho...

------------------------------------------------------------------------------------------

OUR GEAR:

- Panasonic Lumix S1
- Panasonic Lumix S Pro 24-70mm
- Panasonic Lumix S Pro f/1.4 50mm

- Panasonic Lumix S5
- Panasonic Lumix S 20-60mm f/3.5-5.6

- Atomos Ninja V
- Rotolight NEO
- Godox SL60W
- RODE Wireless Go 2
- Tascam DR-70D Audio Recorder
JDS Labs Element III DAC/Amp Review
YouTube Video VVVFVzZGdExTdDlIOW54RWtZamJ5MGVBLjlXSVBfNUZiQkEw

Interested in a product?

If you have questions about a product please contact us directly through our contact form

Contact our Experts

FOLLOW US ON INSTAGRAM

  • The JDS Labs Element III is an excellent sounding DAC/Amp in a beautifully crafted chassis - perfect for headphones and earphones alike.
  • The Lypertek PurePlay Z5 is still picking up awards - great battery life, excellent sound quality and effective ANC - all for only £119!

#lypertek #lypertekpureplayZ5 #pureplayZ5 #lypertekZ5
  • Audeze have annouced the MM-500 -  designed with studio engineering in mind along with a sleek and comfortable fit, these look amazing!

#Audeze #AudezeMM500 #PlanarHeadphones
  • The Final UX3000 is scooping up awards everywhere, and for good reason, for £119 you get an excellent sounding bluetooth headphone with long battery life and ANC.

#final #finalaudio #finalUX3000
  • Cleer have introduced the Arc - these sit on your ear, perfect for those who cannot get on with normal in-ears or those who want to maintain some spatial awareness.

#cleeraudio #cleer #cleerarc
  • 64 Audio are renowned for their excellent custom in-ears - can you name any artists that use them?

#64audio #64fam
  • A simple change of eartip can greatly affect the sound and comfort of earphones - Spinfit tips feature a patented 3D axis to provide the perfect fit in your ears - so check out the range on HiFiHeadphones.

#spinfit #eartips #earphones
  • Check out our blog to see the latest news and reviews - Noble Audio have just announced a plethora of new models, including this beauty the D XII - a single driver IEM that packs some punch!

#nobleaudio #noble #earphones #iem #news
  • Often overlooked, Oriveti make some of the best value-for-money earphones on the market - the OV800 is no exception. Stunning looks meet excellent sound, with a smooth, balanced sound signature and DIP switches to add more bass or treble should you wish. 

#oriveti #earphones #highendaudio
  • Need to power some high end headphones? 

Why not check out our range of Burson Audio DACs, amps and DAC/Amp combos:

https://www.hifiheadphones.co.uk/collections/burson-audio

#bursonaudio #burson
Instagram Youtube Facebook
hifi headphones

Join Our Newsletter


Categories

  • Home
  • News
  • Full Reviews
  • How-To’s
  • Best Of
  • Videos
  • About Us
  • Shop

About Hifiheadphones

  • About Us
  • Product Reviews
  • Demo Facility
  • Buying Guides
  • Login

© 2020 Hifiheadphones. All rights reserved. Hifieadphones is a trading name of K&S Technology Limited, a company registered in England and Wales.
Company number: 5631601 A4 Dolphin Way, Shoreham-By-Sea, BN43 6NZ, United Kingdom

No Result
View All Result
  • Home
  • News
  • Full Reviews
  • How-To’s
  • Best Of
  • Videos
  • About Us
  • Shop

© 2020 Hifiheadphones. All rights reserved. Hifieadphones is a trading name of K&S Technology Limited, a company registered in England and Wales.
Company number: 5631601 A4 Dolphin Way, Shoreham-By-Sea, BN43 6NZ, United Kingdom

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.