no sweat even with convolution ?
tried ASDM7EC-fast modulator instead of ASDM7EC-fast 512 + fs modulator and it’s a bit worse.
Can’t do DSD64 to 44.1 x 512, can’t do 192 to 512 be it 44.1 or 48 based. 1 s interrupts every 20 seconds or so. 96 to 44.1 x 512 is the most I can do.
Don’t know what to investigate. In the attached screenshots is recorded a sequence of 44.1 to 44.1 x 512, 96 to 44.1 x 512, 96 to 48 x 512 streaming Qobuz with poly sinc gauss long filter, convolution, correction. Same issues if tapping from Library, tried once but not recently using 384 convolution filters instead of 352.8 and no luck.
Upsample to DSD256
ASDM7EC-super
1x Sinc-Ls or Poly-sinc-ext2
Nx Sinc Ls
For some reason my ears do not like apodizing or window filters like Gauss, despite their supposed technical merits. Two cents of course.
I have tried almost every combination. The above sounds most like the best Analog vinyl to me but with better channel separation, better bass definition, obviously no pops, crackle or hiss. For analog I use Benz Gullwing, Oracle Mark VII, Parasound HC3+
ext2 is apodizing though… Technically very good one indeed. Both ext2 and gauss-long have similar parameters, but have different properties. So you can think these as a filter pair.
@jussi_laako Interesting. Indeed I find Poly-sinc-ext2 and poly-sinc-gauss-long are my favourites for some material (obviously when recordings aren’t so good) but anything well recorded with natural ambiance or carefully curated ambiance has a soundstage that shines just that little bit more with Sinc-Ls. If anything Sinc-Ls borders on too much emphasis on prescience region (cymbals in particular) but sibilance seems about right for my taste.
Example U2 “Walk on” - quite a bit of apod warnings on that one.
I must try Opeth and Porcupine Tree (your test tracks) to see how Sinc-Ls holds up with those.
Of course all comments apply to my setup and tastes - so observations can’t be translated to others except in general terms.
Oh okay, thank you. Have you got any experience with M4 base on DSD1024?
I haven’t been able to run it yet since I started with HQP but maybe I was using the wrong combination. Is this new AHM7 more efficient?
Not much yet, mostly been running DSD256 or DSD512 on it. But certainly I would expect AHM7EC8B to run without any trouble there. I will do further optimizations of the the new AHM 8B which will further reduce it’s load. It is very efficient in making best out of DSD1024+.
Any idea what kind of filter is inside Wadax and if turning its buttons is equivalent to pick different filters based on slope shape, attenuation etc ?
Lots of reviews these times and either I’m deaf + dumb and did not dig something or you don’t advertise enough on the fact that HQP is not only about upsampling and library management but also extends one’s computer into an unbeatable CD player for next to nothing as well as a flawless server.
Since I’m not in the camp of those thinking that with a cheapo dac you get all that you can get from digital (IMO May gap over Spring 3 was as large as TEAC 501 to S3 and, even though I still don’t understand why, Holo Red is way way better than a UP NUC) I’m open to learn I miss something without a zillion dollars/euros server + cables if there’s an explanation (but IMO Qobuz vs local is case by case, mainly due to mastering or audiophile SACD over unsigned hires mastering and for the new stuff I’m all Qobuz now)
poly-sinc-gauss-ext2 or ext3 (haven’t played with everything yet)
…the Mac is barely breaking a sweat. <30% CPU. I also use it as my daily driver, so though I’m not sitting at it working right now, there are probably a dozen browser windows, an Excel file, several PPT files all open as well. This is not a “well-treated & optimized headless HQPlayer-only Mac”. This is just my regular every day computer, running HQP in the background.
And… it sounds wonderful. I haven’t done detailed comparisons to DSD512 or 256 with my favorite filters / shapers. But it is fabulous on its own.
Frequency/clock wobble with AHM7EC8B:
I tried the AHM7EC8B modulator with 48kx1024 and sinc-Lh with my Holo Audio May for the first time yesterday. I can see why so many people like it as, at first, it seemed to highlight a bit more of everything even though it gave up a bit of imaging to the ASDM7EC-Super 512 + fs I had been using. But after about an hour and a half of listening I noticed that the sound was starting to wobble, speeding up and slowing down and thus changing pitch ever so slightly. At first I though I was just imagining things, but over time it got worse to the point of being unlistenable.
Any idea what would cause this?
Strange, me too with AHM7EC8B and 48x1024 on a Spring 3 KTE, no problem.
I use 1x: poly-sinc-gauss-long and Nx: poly-sinc-gauss-hires-lp.
I haven’t tried sinc-Lh.
And changing filters does the same thing?
The Spring 3 KTE is still in the burn-in phase.
For the moment, the main differences between it and the Cyan 2 are:
better extinction of notes,
more naturalness overall,
and a slightly more “liberated” listening experience.
