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It needs to have a very bizzare noise floor spectrum to make 30dB difference between A-weighted and unweighted measurements. Remember it has a multistage ADC design and the specs say 142dB DNR is achieved by gain = 10 dB, fader = 0 dB. Likely because these values put the standard -60dBFS DNR...

...and me. https://www.audiosciencereview.com/forum/index.php?threads/smsl-su-9-balanced-dac-review.16150/post-536177 https://www.audiosciencereview.com/forum/index.php?threads/dacmagicplus-filter-mirror-images-short-study.20318/post-682380...

OK, I apologize if some of my expressions made you unhappy, probably a language barrier. However, instead of reading a single post from Gearspace, I decided to read more into the main thread to understand the flow of messages from other Gearspace members, not only you, so it is nothing personal...

Yes I already read these posts before, in fact, I even posted in another thread: https://www.audiosciencereview.com/forum/index.php?threads/help-explain-intersample-overs-please.11651/post-338342...

That's why I am saying the post from Paul Frindle you linked to is not particularly interesting. The thread started from Ian, Alexey and others about the confusion between ISP and codec clipping. Codec clipping cannot be solved on the DAC's side, and when codec clipping can be solved, ISP on...

OK, I see why you posted here, but this Gearspace post is not particularly interesting. Could you go back and tell Alexey that a 2-pass AAC/MP3 enocoding from lossless source is not necessary, because there are something like MP3Gain/AACGain...

Thanks. My test signal is asymmetrical, if the device allows changing the filter's phase it may show a different result. Anyway, the Samsung dongle result is the strangest one.

Yes, I always do this on the playback software (foobar), especially, because I also play lossy files and MIDI files via some synth plugins which involve floating point processing and the rendered peaks can go beyond 0dBFS (not dBTP), therefore headroom in DAC is not going to help. If at some...

Thanks for trying this, likely the effect of CAudioLimiter and therefore MPC is undistorted. But anyway, I should post full instructions so that others can use this test signal safely: https://forum.cockos.com/showthread.php?t=201868

Could you test your devices with the file below as well? https://stash.reaper.fm/32679/intersample.flac

You can scroll up to read the previous posts, it is a track released on a CD. As for the synthesis, these kinds of sound are generally called Chiptune. I recorded the analog output of my Game Boy in the post below (hardware.flac in the attachment)...

https://www.audiosciencereview.com/forum/index.php?threads/correlation-between-sample-rate-and-audible-frequency.9411/post-304560 Like this?

Even if there is conversion, if the conversion quality is decent there should be no obvious distortion, so I am a bit disappointed.

Similar results applies to Oppo UDP205 and Topping D90SE too that Archimago tested too, and... Regardless of how the volume control actually works, the results show that using the ESS volume control on DSD input caused distortion when compared to a test signal generated at for example -20 or...

Your DSD128 plot with -60dB ESS volume control looks close enough to Archimago's DSD128 DNR plot which did not use the ESS volume control, but Archimago's DSD256 plots in all tests (THD/IMD/DNR) are pretty pathetic. Anyway, according to your tests, using the ESS volume control makes DSD measure...

What if the signal is generated at -10dB with an additional -20dB volume applied using the ESS volume control?

Interesting, this one indeed has highest distortion, same as the PCM hump position in Khadas measurements.

Yes, I asked him about this. Why, because the Topping D90SE was all the hype at that time but I suspected there could be issues with DSD, so I interrupted him before he was about to give a final verdict. https://archimago.blogspot.com/2021/10/measurements-look-at-dsd-and-using-sox.html Turns...

RMAA uses -3dB for THD, IMD and IMD sweep tests. IMD and IMD sweep tests have different test conditions, one is 60Hz/7kHz pair, another one is two sweeping tones separated by a distance of 1kHz. Now, if a 0dB, -3dB sine, -60dB sine, -3dB IMD, a -3dB IMD sweep and a 32-tone test, all of them...

Older chips like CS4398 in EMU1212m are also simpler too which makes DSD more relevant. I guess, even a CS43198/43131 dongle these days can have more consistent PCM vs DSD performance regardless of having "direct" path or not. EMU interfaces are good of course, so good that Creative...