tag:blogger.com,1999:blog-4781727111866727703.post4791042543229562720..comments2024-03-28T00:31:13.472-07:00Comments on <em>Archimago's Musings</em>: MEASUREMENTS: Raspberry Pi 3 & HiFiBerry DAC+ Pro (Audio Streaming)Archimagohttp://www.blogger.com/profile/08642574001287787545noreply@blogger.comBlogger44125tag:blogger.com,1999:blog-4781727111866727703.post-11936880629165922202017-11-29T08:13:22.566-08:002017-11-29T08:13:22.566-08:00In the end, is there any real audible difference b...In the end, is there any real audible difference between DAC+ standard and DAC+ Pro? Do those oscillators make an audible difference?cibibikeruhttps://www.blogger.com/profile/03290876475254707369noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-1072173812979580332017-11-24T13:36:22.909-08:002017-11-24T13:36:22.909-08:00Just bought two HiFiBerry DAC+ Pro, they sound ver...Just bought two HiFiBerry DAC+ Pro, they sound very good.<br />There is only one problem when the clocking is changed from 44.1khz to 48kHz, there is an audible glitch for at least half a second. I'm running LMS and PicorePlayer on the Rpi 3.<br />Blogue à parthttps://www.blogger.com/profile/17651305500712464065noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-533707759969809552017-10-29T18:48:07.705-07:002017-10-29T18:48:07.705-07:00Ok, found that you've already made USB issue v...Ok, found that you've already made USB issue verification :)<br />And HiFiBerry DAC+ Pro vs E-MU 0404 could also be somewhat compared with your older articles. All this is saying to me is if I chose Raspbery Pi or Odroid as streaming device and any of mentioned DACs, I'll be happy with the sound that I get. Thank you.<br /><br />If you every get your hands on HiFiBerry DAC+ Zero, please Jarekhttps://www.blogger.com/profile/16626549548416587389noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-8878755638075838502017-10-29T12:24:52.514-07:002017-10-29T12:24:52.514-07:00Unfortunately I can't edit my comment. Got an ...Unfortunately I can't edit my comment. Got an idea in the meantime. You still probably have Raspberry Pi 3 with HiFiBerry DAC+ Pro, Odroid C2 and E-MU 0404. Since lastly you can sometimes catch used 0404 for cheap, it would be interesting to compare HiFiBerry DAC+ Pro with 0404 connected to Raspberry Pi 3 (it would also be a test of USB Bus vs I2S). Eventually, if USB Bus is an issue, 0404 Anonymoushttps://www.blogger.com/profile/01601070111799891689noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-70192485388852688792017-10-29T08:30:21.023-07:002017-10-29T08:30:21.023-07:00If you ever get your hands on cheapo HiFiBerry DAC...If you ever get your hands on cheapo HiFiBerry DAC+ Zero, I'll be very curious about its sound quality and comparison to DAC+ Pro.<br /><br />Thanks for what you are doing :)Anonymoushttps://www.blogger.com/profile/01601070111799891689noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-17319738890038566862017-05-25T14:54:01.248-07:002017-05-25T14:54:01.248-07:00Hello Archimago,
many thanx for that article above...Hello Archimago,<br />many thanx for that article above! Really impressive about the HB DAC+ pro!<br />I know, this thread is quite old, but would like to add some note/question.<br />When I switch the digital filter of my HB DAC+ pro, using alsamixer (running on RuneAudio_rpi2_rp3_0.4-beta_20170229_2GB.img.gz) I have to reboot the RPI, before the change takes place (measured with M-AUDIO192 Anonymoushttps://www.blogger.com/profile/09231981274458384713noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-66537374759697202532017-03-28T14:24:36.881-07:002017-03-28T14:24:36.881-07:00Hi Archimago,
You mentioned The Hans Beekhuyzen C...Hi Archimago,<br /><br />You mentioned The Hans Beekhuyzen Channel and his testing equipment. I think he never use it or he don't know how. He mentioned in some video that soldering is hard for him and I don't wonder, he is just a journalist. He even deleted my comment when I did not agree with him about raspberry Pi3 usb audio. :D Maybe Hifiberry pays him? But I have to say that I stosoorokhttps://www.blogger.com/profile/07370522807679537701noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-53456958147463556892017-03-11T08:51:27.929-08:002017-03-11T08:51:27.929-08:00Watch this ladies & gents!
BRYSTON Audio from ...Watch this ladies & gents!<br />BRYSTON Audio from Canada are selling our Hifiberry for approx 1300 canadian dollars! ;-)<br /><br />http://bryston.com/products/digital_audio/BDP-Pi.htmlSantanahttps://www.blogger.com/profile/09330634321861422290noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-62897920688335099512017-02-18T05:18:15.685-08:002017-02-18T05:18:15.685-08:00Hello! Can you make measurements of Raspberry Pi3 ...Hello! Can you make measurements of Raspberry Pi3 + IQaudIO Pi DAC Pro?Airstonehttps://www.blogger.com/profile/16570004257636877402noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-35081456934598954922017-01-15T05:00:18.995-08:002017-01-15T05:00:18.995-08:00I think that there is still a switching power supp...I think that there is still a switching power supply present in the system when you are measuring with battery power. There is most likely one Li Ion cell in that Duracell and a boost converter that transforms voltage to 5 volts (Measure if there is any ripple with a constant resistive load?). The point you make on efficiency of linear regulation is valid only when the difference of input and Anonymoushttps://www.blogger.com/profile/10866204049952279923noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-45991931909106343132017-01-03T12:31:11.524-08:002017-01-03T12:31:11.524-08:00Fantastic stuff Archimago! Thanks to your blog, I ...Fantastic stuff Archimago! Thanks to your blog, I am now enjoying the pi3 and hifiberry dac. Some day I will compare it to my Classe CP800 DAC that is boxed up in the basement right now, but from what I am hearing so far and the measurements you shared, the law of diminishing returns for DACs has started to kick in very early these days. I cannot believe people are still spending $20K plus on vijayhttps://www.blogger.com/profile/05245020471761067810noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-1307699450767735782016-12-30T15:47:21.358-08:002016-12-30T15:47:21.358-08:00I'll have a look and post on this Josh...I'll have a look and post on this Josh...<br />Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-80109073712956561042016-12-10T02:49:58.042-08:002016-12-10T02:49:58.042-08:00Archimago,
Have you measured the USB output from ...Archimago,<br /><br />Have you measured the USB output from the RPI3 to a USB DAC to see if it's "clean" like the ODROID?<br /><br />Thanks for your work!Anonymoushttps://www.blogger.com/profile/00520802800149319525noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-16130356046074884342016-11-29T07:21:56.807-08:002016-11-29T07:21:56.807-08:00Hi Archimago
Many thanks for the great investigat...Hi Archimago<br /><br />Many thanks for the great investigations and postings. May I ask: have you measured (or maybe just "tried anyway") the analogue audio out of the Pi 3 via the 3.5mm stereo audio socket?<br />I wonder how that compares with, say, a standard SlimDevices/Logitech Squeezebox Classic? <br /><br />Not needing the "DAC HAT", if it's any good it might make amoobliehttps://www.blogger.com/profile/02030737718477010766noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-46181037795061629792016-11-04T14:46:30.136-07:002016-11-04T14:46:30.136-07:00There is a problem with 24/96 and 24/192 measureme...There is a problem with 24/96 and 24/192 measurements of GO V2 - they are way different from the ones in http://archimago.blogspot.co.il/2016/07/measurements-focusrite-forte-usb-audio.htmlAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-26471459124215477422016-10-31T09:22:10.028-07:002016-10-31T09:22:10.028-07:00Hi Archimago, thanks for the great info.
Would i...Hi Archimago, thanks for the great info. <br /><br />Would it make a difference if you connected a linear PSU directly to the DAC+ Pro as recommended by Hans Beekhuyzen and Scott Kramer, instead of connecting it to the RPI? <br /><br />Please see 7:07 on this Youtube video...<br />https://www.youtube.com/watch?v=ps-X4ipA_fY<br /><br />Thanks.Skoonvoethttps://www.blogger.com/profile/07769737257395616300noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-60339594225014900852016-10-31T09:19:31.471-07:002016-10-31T09:19:31.471-07:00This comment has been removed by the author.Skoonvoethttps://www.blogger.com/profile/07769737257395616300noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-3852563088154221632016-10-25T15:04:41.229-07:002016-10-25T15:04:41.229-07:00Because of the blog I bought the same case and HiF...Because of the blog I bought the same case and HiFiBerry DAC+ Pro. I was using a Audioquest Dragonfly Black USB DAC with my RPi3 and Moode. I think the Dragonfly is a little better sounding DAC, but am still undecided. Overall I am very happy with this setup.<br /><br />BTW, the system I am using is: The above into a PS Audio Sprout to Paradigm V.5 speakers. I pull files off a NAS. Also run a Lurchhttps://www.blogger.com/profile/13913446918873692518noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-33573429100437013532016-10-11T07:27:34.211-07:002016-10-11T07:27:34.211-07:00PS: And just a last addition to that. The very fir...PS: And just a last addition to that. The very first measurements about the jitter "content" (and not only the peak-peak time variation) that I have seen was with the Meitner LIM demodulator. Where you connect the probe to the master clock (of the I2S bus) and set to the right Master Clock to Word Clock Ratio and make an FFT (with the very first Audio Precisions) of the demodulated NF JR_Audiohttps://www.blogger.com/profile/00547557948411188806noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-54104652209353584802016-10-11T07:22:17.571-07:002016-10-11T07:22:17.571-07:00To show you one example of what I mean. Here is a ...To show you one example of what I mean. Here is a measurement of a BiPhase Jitter (measured in the time domain, and not at the analog out of an attached DA converter).<br /><br />This signal does have a Time Jitter of 1.246 nS (peak-peak). But what does this mean? Without the above mentioned analysis, not really any real facts.<br /> <br />And so here is the analysis of the demodulated carrier. <JR_Audiohttps://www.blogger.com/profile/00547557948411188806noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-26913395456469161072016-10-11T07:09:07.009-07:002016-10-11T07:09:07.009-07:00Broadband Time Jitter on I2S or BiPhase Signals
Th...Broadband Time Jitter on I2S or BiPhase Signals<br />Thank you for the links, showing some Jitter with High Bandwidth Scopes. Sure, it would be nice to have also low jitter values in those measurements, but this measurements doesn't show you, what frequency content creates those jitter. To judge those measurement, you have to FM and AM demodulate these carrier and make a FFT analysis of the JR_Audiohttps://www.blogger.com/profile/00547557948411188806noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-74807768007780777872016-10-11T00:53:33.248-07:002016-10-11T00:53:33.248-07:00Of course! It would be very interesting to see the...Of course! It would be very interesting to see the Dunn J-Test results for a DAC+ with and without this device.<br /> I2S bus from Pi-circuit board has a lot of jitter, here measuring "Comparing the I2S Capabilities of the RPi and Odroid C1+" (http://helios.himmelbauer-it.at/blogs/general/comparing-the-i2s-capabilities-of-the-rpi-and-odroid-c1/), in ODROID slightly better than of Pi, Anonymoushttps://www.blogger.com/profile/04467294147663735593noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-8540608431410640722016-10-10T21:49:40.453-07:002016-10-10T21:49:40.453-07:00Interesting. And I suppose this could help clean u...Interesting. And I suppose this could help clean up I2S jitter from the Pi to a DAC like the HiFiBerry DAC+ (non-Pro, if they fix the supposed driver incompatability). It would be interesting to see the Dunn J-Test results for a DAC+ with and without this device.<br /><br />Not sure if it make sense to use this with something like the DAC+ Pro though; especially since jitter based on what I see Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-85201736058332478662016-10-10T21:39:00.381-07:002016-10-10T21:39:00.381-07:00Hi Deepak,
A pleasure putting the information out ...Hi Deepak,<br />A pleasure putting the information out there! I must say that doing this for myself has cured my own "audiophile neurosis" about expensive tweaks and I am glad that it can help others as well :-).<br /><br />Now not having a Kangaroo, I of course cannot be sure... However, it does look like a nice machine. The Mobile Desktop with Atom X5-Z8500 processor, 2GB RAM should Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-6098977396380401612016-10-07T11:50:23.845-07:002016-10-07T11:50:23.845-07:00Very desired test sound equipment.
If you will be ...Very desired test sound equipment.<br />If you will be interested to note the new card for audio output from the RPi - "Allo Kali I2S Reclocker". First reviews are very encouraging - https://volumio.org/allo-kali-i2s-reclocker-a-true-gamechanger/Anonymoushttps://www.blogger.com/profile/04467294147663735593noreply@blogger.com