Jitter is RUINING your audio? The TRUTH about jitter!
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- čas přidán 3. 08. 2024
- Jitter is still highly debated in the Hi-Fi world but is it really that problematic? In this video I explain what jitter is, how it can impact audio quality and why jitter is not a big deal anymore.
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00:00 Intro
00:44 Jitter explained
01:36 Jitter sound misconception
02:28 Where does jitter come from?
02:56 Synchronous and asynchronous connection
05:10 Audibility of jitter and sound samples
08:36 The truth about jitter
11:22 Verdict
** Patreon is a platform where you can choose to support the channel by purchasing a monthly subscription. - Jak na to + styl
I've always wondered what "Jitter" is. Julian should run a series called "Everything you wanted to know about digital audio, but were afraid to ask". 👍
Between you, Jim Lill and a few others you have pretty much destroyed any notion that recording music has to be expensive. And this is a good thing. It forces creators to focus on the art, not the tools. Thank you.
Thanks!! Agreed, Jim has some really cool videos.
Jim is amazing. It's fun how many forum myths of old fall apart when you start focusing on what actually makes a difference and the science behind it
I built my first DAW in 1999/2000. You had to pay quite a bit to get good convertors, and you had to pay more to get converters that were located in the breakout box (I drooled over the MOTU 1824 iirc), because converters close to the PCI bridge would pick up noise. And the budget converters weren’t guaranteed to be shielded. Anything available today in the recording space is orders of magnitude better than hardware 25 years ago. The playing field is more level than it has ever been, and it’s just going to get better.
Very well said!
Yeah, everything is so good nowadays. But... some are chasing some past times characters. And putting multiple so-so devices in chain might lead to audible problems sooner.
Julian, this video was Perfect just like most interfaces jitter performance. Thank you so much for the great information and demonstrations.
You're very much welcome!
I wouldn't worry about "The Jitter Bug" folks.
The primary thing that is ruining "your audio" is a lack of creativity.
WE are focusing on the wrong "things". Focus-right
Try and produce techno and see if groove killing jitter will let you draw the same conclusion.
Amen
Ironically focusrite interfaces are pretty bad in jitter and driver stability
@@vadimmartynyuk Julian showed Focusrite performance data. Present your claims.
@@vadimmartynyuk Maybe more than some other interfaces, but not enough to actually cause a problem for literally anyone making music. If you are deciding between interfaces based on amount of jitter, you're *looking* for a problem and picking based on random numbers on a random graph rather than using your ears.
Your videos are pure gold. Thanks for everything you do!
Another amazingly-informative video from Julian, that i didn't know i was missing in my life before this! 😅
I am not an audiophile. I am a vo artist , and Ihad to teach myself audio editing for my home studio. Many of your videos have helped my journey along the way. You have a way of explaining your process without being condescending or all knowing. you display facts and graphs an interesting narrative that allow even technoobies like myself understand what the topic is and what the issues are. thank you for taking the time and sharing your passion and knowledge
Amazing content as always! Thank you
Useful video! Congratulations on 100k+ subscribers!❤
Thank you! 😃
Wonderful - thanks for all your videos, keep them coming.
Thanks for sharing science-backed facts :) ! I can only agree with the content of this video, and I'm happy to see content like that that participates to sharing the truth.
A fellow home studio youtuber from France
Great video! Perhaps a future topic of clocking between multiple digital interfaces is in order? Many people get jitter/clocking issues confused and it's probably because the understanding of what jitter actually is isn't widely known (hopefully this video puts that to bed).
thanks for all you do, GREAT CONTENT !!!!!
I dont know how you made this video without the words ' *clock recovery* ' but i'm quite grateful that you demonstrated just how astonishingly good the clock recovery on my Audient Evo16 is even on SPDIF in a worst case scenario, makes me worry a lot less about how the optical jitter is these days (i didnt think it was an issue, but i feel lazy not using the word clock lol)
Thank you so much for making this video!
I have been arguing with people about this here on youtube, who spend lots of money in fear of the mighty jitter.
Looking at your jitter results, I would say those noise in the graphs most probably are a result of other problems than jitter.
Jitter was a problem 30 years ago, when they just started to make digital audio devices. I do not think anyone still have any devices which have any jitter problem anymore, as it is not a difficult problem to solve.
The only time you can have jitter problems, if your device is just faulty.
Some years ago I purchased a "JitterBug" from AudioQuest specifically BECAUSE I believed it was pure snake oil, and I felt my first deliberate "audiophile head-fi" setup would be incomplete without a dash of such. As far as audiophile snake oil goes, it seemed like a pretty cheap option for such pure stuff lol.
Love this channel. Love Krausian humor. Better therapy than "Therapy", and less risk of snake oil than that realm too.
Audio Science Review testing found that the Jitterbug actually INCREASED jitter. Not just snake oil, but actively counterproductive.
@@scorpioassmodeusgtx1811 *shrug* I'm relieved to hear that I didn't get a watered down dash of snake oil. Also, don't really care, per this video.
EDIT: Skimmed the ASR review. The conclusion appears to be that it does nothing audible, and barely anything even confidently measurable, as is the conclusion of several other reviews linked around the ASR forums. I didn't see any mention of increasing jitter in the conclusions. Leaving my prized snake oil in the signal chain.
@@attaboyBrad I believe the increase in jitter was only observed when combined with one DAC, namely the the Schiit Modi 2. But even then the differences were well below what could be considered audible. It's safe to say it has no practical positive or negative effect.
Excellent explanation, thank you 👍
Lowest I can go for my 48 year old ears is -72dB. So I think I'm in the clear, lol. Another reason why I also don't worry about whether my music is 16bit or 24bit.
Another excellent video ----- thank Julian ---- revealing the truth
Your reviews are fantastic. An unrelated subject suggestion: after watching many reviews for budget interfaces, it would be nice to give example scenarios of what type of user would take the most advantage of their particular features. That would make your revires from a 9.9 output to an 11 score output in the consumer scale. Thank you for your excellent work
Bloody amazing content, mate. Keep on the great work! In a tech language way, you are the Glenn Fricker of audio interfaces, mythbusting sort of. For example, when it comes to SM7B -> SM57 discussion, instead of telling the same thing again and again as I did during the last 20 years, I just send a link of your video about the matter. It perfectly aligns to my experience.
Ages ago when I worked for a broadcast company we tested AD/DA chips and used the same measures so although I'm not an engineer, your interface tests tell me everything about these new audio devices. Clear tech data and language, I really like that.
When it comes to clocking / sync, it would be interesting to hear your thoughts about how differences between un-synced devices occur and how to solve timing issues between, for example, an audio interface and different cameras.
We love your videos. And have something we would love you to cover:)
Great video! Obviously you understand, that jitter as a topic is a cash cow only. Actually, there are 2 versions of jitter: 1. Samples times are distributed in a slightly imperfect way near to perfect timings, but no integral time deviation occurs, like molecules thermally oscillating near their perfect place within crystal, hence no modulation, since overall timing structure is not affected. 2. time errors add up over many samples, then that error gradually reverses polarity and back and so on: This one causes intermodulation. This is the "bad" one, but even this one is definitely not audible anywhere in the picosecond range. Nobody needs single nanosecond precision. Or femtosecond, or attosecond or plancks time resolution accuracy or whatever they offer next.
Ur So Cool Very Cool Luv Ur Precis Explanations That I Can Understand Keep it Up Luv Your Channel!!
A lot of information yes, but wrong conclusions. Reclocking brings very obvious audible improvements, even in modern DACs, but according to your video it is negligible. In other words, DCS, Esoteric, Antipodes, to mention a few, are all wrong, but you are right. Yeah right. I believe my ears above and beyond any measurement.
Without people like you, all those brands would be bankrupt.
@@StephanBuchin I studied and work in digital A/V and telecom electronics and thought just like you. It justified my inability to acquire high-end equipment, let alone test and compare it (not implying this is your situation). After decades, I finally had the chance to A/B systems on my own house (used gear from a friend's trade-in hi-fi store). Differences can be huge and obvious. Sometimes they are not.
I appreciate your honesty, however you may want to personally test several high-end devices. My personal experience changed my mind significantly. Snake oil and overpriced gear exist, but not everything expensive is snake oil.
Good explanation JK!
I do believe these statements are true for probably 99% of user listening scenarios, but strongly disagree about it being inaudible. I have experienced it myself on high end systems. DDC especially, if you can't hear the difference you don't have system that is revealing enough.
I always thought of jitter as just another effect to be added when using effects that intentionally reduce samplerate and bitrate over a channel. I found a little added jitter to be pleasing in the cases were I use it. A little jitter makes bitcrunching sound more organic, and less like static
isn't that dither? a way to mask quantization noises. Try oversampling instead
@@miquelmarti6537 this is just in context of using an Ableton Live effect over a single channel to add some grit, say for a bass track. Sorry I wasn't being clear.
Oversampling wouldn't really add much in this case.
I mean, the idea is intentionally to reduce samplerate.
Thank you for this video.
Hey mister Julian Krause! Do you have your "audio interface tier list" -stream or the final chart somewhere? I would really appreciate it. Sorry for comment that is unrelated to the video.
My PC was next to the microphone arm and when I folded it it stayed close. Now I have moved the PC and I no longer have any problems. Thanks to your reviews I bought a Focusrite Clarett 2pre and I'm pleased with it. Nowadays there are a lot of people doing podcasts, It would be a great idea to review audio production solutions for podcasters like the Mackie DLZ Creator or RØDECaster Pro II. That would also be a fascinating video. Love your channel. 👍
Excellent job! Succinct. i appreciated the graphs demonstrating you thoroughly investigated jitter for us. Convinced me to subscribe.
Great vid.
hey Julian, love your thorough reviews. would you take a look at DJ controllers with integrated interface?
they come with 2 separate stereo outs and some with mic- and line- in, enough to test there.
the sound quality talk on the dj channels usually doesn't go beyond "symmetric outs = professional"
I think that could be an interesting expansion of equipment to test and audience to draw...
I have a DAC very similar to the $8 one shown on this video. I bought to convert digital coaxial into analog RCA and I haven't noticed any jitter or other kind of noise or artifact. Before this video, jitter was only mentioned and sometimes describe in ways I only had an idea about. Thank you!
Very well put argument and demonstrated evidence to debunk the snake oil sellers. Congratulations and thanks for all the clarity you bring to us on audio devices.
Hey julian, amazing review as always. Could you please do a review of the YAMAHA AG06 mixer/audio interface?
Thanks Julian for all the great work! Could you review the Neve 88m ? Thanks!
Nice KEF's. Perfect for reference if reverb and any spacial cues.
The best explanation ever!
This is my favorite CZcams channel
Awesome video. Anyway, I was wondering if you'll be taking a look at the new MOTU 828? It seems like an expanded version of the UltraLite mk5, and I hope it lives up to its quality!
Somehow your analysis is deep yet not long-winded. A perfect performance.
Well he is German!
He skipped over everything that mattered.
@@Pete.across.the.street What do you have in mind that was skipped? Honestly curious.
@@CharlesBurnsPrime he over simplified it. It's much more complex than he made it out to be. That - 120db gets amplified. If you do actual a/b listening test you can tell the differences. Not so much that b you hear the jitter, but you can tell when there's a lack of jitter.
@@Pete.across.the.street Interesting. I would ask that you suggest a test for Julian to consider. He seems to be the kind of person that can share corrections or exceptions to claims without ego problems. I would love to understand this topic better as it is often discussed with regards to digital audio.
I really like how the jitter sounds like, when it's not that high, could use as an grit effect.
But that pereodic jitter sounds like an sp-1200
you should try my plugin, NEL. It's a vibrato plugin, but on high octave settings its perlin noise modulator would essentially produce jitter
I was thinking the same, that metallic harmonic on the periodic jitter has a really ring mod bite to it.
@@mycosys yeah it's kinda pleasant to the ears to listen too aswell
already hunting for a max4live device to rip a jitter-controlled resampler from lol @@thebloodminister988
Yeah, there’s also a plug-in called decimort by D16 that has a jitter control
Fantastic explanation!
Great video
I am sort of reminded of the old analog days. I used a high-end open reel unit running 15 IPS; I used dbx noise reduction in many of those recordings. That meant, adding the 30 or so dB noise reduction to the already high signal to noise of my recorder (75dB or so at 15 IPS), I was running about 100 DB or a little more signal to noise ratio. Great specs; but if you listened carefully, you could hear the noise in between the notes on quiet passages. Thing is, if you’re just listening to the music, you never hear it. Your video makes me feel that way about jitter. Thanks!
That noise was really audible actually.
@@StephanBuchin It can be. When dbx first came out, people were being told to way under-record, so that there would be less distortion. The dbx would take care of the hiss that way. dbx put in their instructions that you should record with peaks at or near 0 dB; that way, the noise control would be the best. Recording that way, you could still hear a little noise, especially on classical music. But things like jazz groups, rock, electronic Pop, the music covered the hiss pretty well.
Well explained. Thanks for clearing this myth.
Just goes to show that sometimes we focus too much on the phantom details, stuff that really doesn't matter. Let's all be more creative and focus on the art instead.
Awesome and informative :)
This wrong idea of worrying about jitter these days comes from the peddlers who want to sell you their products... There is so much wasted money by poor audiophiles that believe those unscrupulous snake oil sellers...
Great job
Thanks Julian, these videos of yours have been very informative in clarifying concepts that I thought I knew something about previously, but didn't really understand. As far as jitter, this is a hazy memory, likely from a decade or more previously, that Toslink, could suffer from jitter due to long optical cable runs, poor endpoint connections or cheap optical fiber, due to to signal reflections in the optical fiber itself. Would such actually be jitter or more a form of signal degradation in general at the receiving end?
Nah you get to worry about bit errors way way way before you have to worry about jitter.
Awesome Bro
Very interesting. What about jitter introduced by streaming services, ei: less than ideal Internet speeds, caché and buffering. I suspect that's Why physical media or local files seem to sound better than streaming, IMO. Thanks for the great video!
Streaming services uses packets of data. As demonstrated in the video, packetized data is totally impervious to jitter. The difference in quality is compression.
Streaming audio is put into a local buffer. The audio is played directly from the audio buffer which is local memory and, therefore, no more susceptible to jitter than a local file (which, incidentally, is also streamed, just from a local media rather than a remote one).
"Buffering" occurs when the data stream isn't fast enough to keep the local buffers full. In that case you will get obvious dropouts or pauses in the stream. If the stream is fast enough (which, for streaming audio, that's normally the case) then you won't get buffering.
Either way, you won't get jitter.
streaming services use lossy compression
spotify for example uses the vorbis codec
@@djentledjosh which has nothing to do with jitter.
@@KeithMilner correct
i was responding to the top comment which said that network jitter could cause quality issues with streaming services which is not the case
I have a old keyboard soldered an external Clock input to. So i can add Jitter as an effekt and or pitch it up and down and give it a lowFi sound
Great video! I'm interested in using multichannel DACs for active loudspeaker use as a hobby. Fear of jitter drives me towards a USB DAC but it would be more convenient for many, I think, if one could just use an HDMI input to a receiver - DAC, volume control, and amps (OK weedy ones) all in one box. Could you comment on HDMI jitter with 4. 6 or 8 channels of PCM at various sample rates?
Thank you Julian for the great explanation on this topic! In a forum on Gearspace I saw a discussion about operating systems on computers re-sampling audio and therefore leading to audible quality differences during playback. Does it have to do with Jitter as well or is there another reason for the audible loss in quality? Do you have a video on this topic or would that be something you'd do a video about? There are apps like Audirvana that promise to get around the re-sampling issue and to increase the playback quality.
We, the committee of Guinness World Records hereby announce: Julian Krause officially is the person, who said the word "jitter" more often than anybody else - ever! 🏆Congrats, Julian! 🤭 Thx for your excellent vids & cheers from Hamburg! LG cosmic
Geiler Typ, geiler Content!
Geiler Kommentar! Danke 😃
Yay! new vids
Thank you for touching on this snake oil topic. Very good presentation as ever.
Hi ! Thanks for the education ! I'd like to know which tool you used to create, shape and control jitter for your demos. It would seem a fun creative tool.
my Walkman mistreated ears only became slightly annoyed only with high settings if at all.
Thank you! Was Just wondering about that from audiophile bull snake oil! Cheers 😊
Amazing video mate. Is the grittyness of some 80`s early digital recordings the jitter? Take for example Show Must Go On by Queen, or the whole album a Kind of Magic, it sounds to me far more grittier than its analog predecessors.
Not too sure, distortion in audio components was also quite a bit higher back then. While jitter might add a hint og grunge, I think the most distortion is simply due to the older audio equipment that was used.
The quality of ADCs in general was variable in the early 80s. I've heard some very unpleasantly edgy, 'sharp' digital recordings made through early converters (different from 'clinical' or 'cold' recordings) - fortunately the tech improved fairly quickly.
I didn't knew this existed in my music, but I promises I forget what you said okay. 😊👍🏻
Hey, I love your videos. Can you tell me why my Audient id14 could be inferior to my buddy’s UA Apollo. I’m interested in a comparison recording audio raw without Apollo DSP plugins. Just direct into the audio interface.
That is true ! Hey Julian why did you not do a review of the new AVID Mbox Studio ?
With the intentional aperiodic and periodic jitter audio examples, could that be described as phase modulation/distortion? Or is it something else? Thank you for your thorough explanation and well done!
The periodic jitter is a type of phase distortion, but aperiodic ends up more as random noise (effectively its sort of random sub-phase distortion but random is random).
If Julian was born way earlier he could have been a member of Kraftwerk.
RADIOAKTIVITÄT!!!
Have you done any videos on summing mixers Julian ?
I find, that it is still easy to hear jitter on modern equipment. Maybe the brain can detect more, than measuring instruments can measure?
You should purchase a good ddc or have someone lend you one to see if you hear a difference, and if you do hear a difference you could try to explain what it's doing to the audio signal.
damn that topping looked ridiculously good
Hey Julian, could you review the Neumann MT48? Really curious about the headphone outs!
What a gem
Thank you, Julian! Very informative. Can you please test the New MOTU 828?
The behringer UM2 is their cheapest (very cheap) and only does 16 bits even so its understandable that it doesnt perform as good as many others while still acceptable in this test. I would never recommend a 16 bit interface to anyone either, 24 bits is the go to if you want to make any kind of serious recording really.
I would love if you could make those audio samples downloadable to get around youtube compression and duplexing. They would be great to test out and demonstrate on our gear as a normal/high res file or even burn to cd.
Does jitter have any impact on other components at all-since it's an artifact of conversion or transmission (SPDIF), does it compromise or degrade/affect the performance of other components at all downstream in any way like transistors or other amplification components, feed back circuits, tubes, (even theoretically) etc?
The side effects of jitter - even if allowed to persist until the DAC and not cancelled - end at the DAC reconstruction filter and at that point it's just sound, distorted sound but without any suspiciously bad characteristics, unlike say clipping.
@@SianaGearz thanks for the intel. I assumed there would be some effective filtering at some point, but wondered if all the extra 'hash' of jitter compromised components along the way.
I did not think my system suffered from jitter but others make it sound so inevitable that you think 'maybe I have never heard what streaming sounds like with no jitter'
I have just discovered your channel (subscribed) .I had a look at your channel hoping to see a video about hifi network switches.
As they are another product I do not understand, they have to plug into a Reuter so haw can they improve on one?
Have you done one if not could you?
thanks. PS my next upgrade will be to replace my wiim pro, do you have any advice on quality streamers to consider?
One device no real worries about jitter. What about if you expand on that as your studio grows? For example my set up is Interface, two 8 channel octopres via ADAT into interface, one two channel preamp via SPIDF. Maybe a video looking into jitter once you have expanded from just your interface? Thanks I enjoyed the video!
There are 4 types of USB data transfer. Audio data transfer is done using Isochronous mode. This is a one way data transfer from source to destination like streams of data. There no way to detect error at the transmission level if the there is a timing variation while sampling by the receiver. The only way the receiver can detect error is by detecting PCM data encoding format by detecting the changes in voltage. It will reclock in needed. However there is no way to send request to sender to resent the correct data. Hence the receiver uses interpolation to set the data. This interpolation will depend of the DAC designer. This is one of the reason different DAC sounds different even when all other parameters remain same.
Clock disparity between USB host and device does not result in erroneous (misclocked) data transmission because USB uses NRZI encoding to interleave clock and data. Bit errors do occur, isochronous transfer just like any includes a CRC checksum, which allows one bit error correction per 1ms window. Sometimes, devices do not implement CRC checking for incoming data, but with modern USB processors, you expect that all of these current devices do. At higher error rates, the error leaks into the output. There is indeed no retransmission possibility with iso, because the transmission and processing time window is already spent, but if you had errors at mere fullspeed (12Mbaud) that were uncorrectible more frequent than once every few days, you'd be THIS close to the device regularly falling off the bus, so you don't have to worry about it.
And interpolation... you're just throwing words around at this point.
Julian, it would be wonderful if you could test the optical toslink output of any LG OLED TV made within the last 5 years. There’s been a lot of discussion about allegedly high level of jitter that these TVs output via toslink that causes problems with some DACs. My DAC works fine but I’m wondering if this type of jitter could cause some audible issues. JDS labs has even attempted to measure the SINAD of one of these devices and it only achieved 80dB, however it is possible that they did not take into account the fact that the TV may have been down converting the test signal from 24 bit to 16 bit.
How about a video on the difference of using ADAT with and without using word clock
6:46 I was going to say that this will be the next effect pedal musicians want to get their hands on, but a quick search showed it already exists... 😆
That does not surprise me 😃
30 years ago, Julian Dunn (Mr Jitter) designed a jitter modulator JM-1 as a tool to help diagnose jitter problems. Some studios bought them to use creatively as an effect. resources.prismsound.com/tm/jm1op.pdf
Jitter in the south west of the UK , jitter is a slur describing a long haired heavy metal/rock fan (like myself)
6:20 how do you introduce jitter to these signals? How are these measured? Can you generate a tone in software to audio interface, and then record it also with the same interface to make this measurement?
I am using , from Mac Mini through USB, a Matrix SPDIF2 (reclocker) connected through IIS to Matrix Element X2 (dac/amp), with settings on synchronous mode. For me, it is an improvement of the sound . I don’t know if it is because jitter or ground , but it is doing a nice job . In this way, the sound is clearer , any sibilance is gone and bass is stronger and more defined in synchronous mode , than in asynchronous mode directly from usb. I really don’t think is a placebo, but who knows ?😊 I am using headphones.
Thanks to RME Steady-clock technology Jitter is no longer a problem since many years.
LOL you mean billions in clock recovery technology RME have nothing to do with. It is a technology fundamental to you getting broadband. Doing it at audio rates is comparatively childsplay
Jitter was a problem on audio frequencies 40 years ago. Nowadays it's a problem when working in RF frequencies. Frequencies that are nearly million times higher than human hearing.
definitely will use this video and link everyone who just moan about jitter, thanks Julian
Hi Julian have you got plans to review the new Zoom H6essential and other essential lines from Zoom ?
There are various form of jitter, you should still be careful about. like
Dr. Jitter
From jitter with love
You only jitter twice
Jitters are forever
The jitter who loved me
For your jitter only
License to jitter
Tomorrow never jitter
Jitter another day
... And many more.
Very interesting. I thought jitter would be a big problem unless you were using absolute high-end equipment. But I couldn't imagine what jitter would sound like.
But another question for another video: How would a multitrack recording (or an entire audio project) sound if you drove an audio interface very low? Let's say an average 24-bit interface with -20 dB level?
Hey Julian, I’ve seen your Video about the Elgato Wave XLR interface. Now that Elgato have added the function to add vst plugins I wondered what you think of it now. If you could respond to this comment or do a video about it I would be very happy thank you.
I have LOL'd as soon I have seen Behringer in the test.
Julian, I hope you get the resources and inclination to test the supposedly highest classes of soundcards. Personally I'd like to see the RME hdspe pcie cards in combination with an RME M-32 DA Pro II AVB 32-channel D/A Converter.
I ask because my studio runs Linux and that seems like an ideal combination that will work. Especially since I'm fond of outboard gear and don't want my "soundcard" to do anything except convert A/D.
The HDSPe are fine cards, they could be a little problematic with certain OS and DAW combinations but are more widely compatible nowadays. They're widely used in pro audio and broadcast environments (where I encounter them) where uncoloured sound, good noise floor, support for house clocking, AES I/O and 24/7 operation stability are needed.
It’s „almost“ pointless to test RME stuff since their own technical documentation is pretty much complete and they’re open (and honest!) about performance specs.
Great video… however, I would argue that a sample of distorted guitar probably isn’t the best choice when trying to specifically discern extra distortion!
One could use jitter as an interesting sound effect. Maybe ins some metal or punk?
If I understand correctly jitter is mostly a concern if you have to use a synchronous conection for applications where latency problems can stack up like live audio. Band recording into their own dps, into the sound system dps into digital amps. Or did I get it wrong?
Last time I heard about jitter (as an issue or problem) was in 2001. After 2005 never seen a word about it.
I remember using a behringer DEQ2496 that was complete trash when converting spdif/aes3 input to analog output.
Absolutely Spot On!!!