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So soooooo very lushā¦ dripping evenā¦
SDM (DSD)
poly-sinc-long-ip
ASDM7EC-light 512+fs
24576000/1/2 (DSD512x48)
T+A DAC200 (no correction)
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Hi all,
In a surge of New Years zeal Iāve picked up some of the socks on our collective bedroom floor and put them into their own drawers. Let me know if Iāve left any orphans or shifted stuff into the wrong thread.
No one has done anything wrong, Iām just trying to enable people to follow separate discussions. If this kind of housekeeping feels bothersome, donāt worry, I wouldnāt expect it to last ā¦
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Although i have been a hqplayer user for many years , there is a question I have been like to ask for many years. Why people now in favour of non poly sinc filter such as Sinc-M, instead of poly-sinc? Whatās the actual benefit about it ?
halo
my answer
choice and chain preference
From technical perspective, none.
But two things play big role; source content (genre and technical aspect) and personal preference/sensitivities. Former combined with a choice of filter leads to a result, and from there personal aspects become decision factor.
Then there is of course also choice of modulator, which is more system and personal preference dependent and pretty independent of the source content. So it is best to decide on the modulator first.
Like @Eminent_One said, personal preference and synergy play a large part in this. There is no one size fits all approach especially when our ears and the rest of our audio chains are so vastly different
Iāve been upsampling to DSD for years, but lately Iāve actually switched to 1.536 PCM (Sinc-MGa). Technically DSD is better, but my Ampsandsound Agartha likes a hot signal (and Holo May only outputs 1.45V over RCA when using DSD). This is equivalent to running my amp off a DAP and I donāt have full dynamic range. If I output PCM I get 2.9V over RCA and my amp performs optimally. But this is a specific use case, and Iām not about to tell anyone that PCM sounds better than DSD, measurements wonāt back that up and the vast majority here prefer DSD
I added a booster box awhile back (basically a step up transformer, like a preamp without attenuation). It helped immensely with DSD as it brought the 1.45V output to line level, but even still my amp prefers the hotter signal PCM provides, and to be honest, with the recent DAC correction on Holo May, PCM 1.536 Sinc-MGa sounds incredible. So much so that I sold my gaming rig and Iām happy with my M1 Mini (for now)
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Another vote for PCM 1.536 Sinc-MGa may be the better combo I have found so far.
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sinc-L ASDM7EC-super 512+ with DC 88.2k
with 250ms buffer and 44.1k
with 100ms 88.2k and performance plan first ones was balanced accidentally
Hi,
Just thought Iād mention it here. Recently I switched my filter from poly-sinc-gauss-long to ploy-sinc-gauss-xla. I found it to sound just slightly more airy, less harsh.
I use Roon, run HQP on a Mac mini 2, use ASDM7EC-super with output to SDM 11.2MHz.
I suddenly noticed sometimes there are dropouts of a second or so. I thought it was my network. Rebooted all switches and routers. However, today I realized that it only happens with 48kHz streams, not 44.1kHz. Switching back to poly-sinc-gauss-long gives no drops.
Is this just a question of my Mac mini running out of steam with the xla version of the filter or something else?
Regards
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Yes, seems to be the case. 48k increases load by roughly 10% compared to 44.1k. And when the conversion is to another rate family like from 48k to 44.1k x256 output the load increase is even higher. This seems to be just enough to exceed your computing capacity.
You could try if for example switching to ASDM7EC-light modulator would solve this and be more favorable from end result point of view than switching to -long version of the filter.
Thanks, Jussi!
I tried your suggestions but it didnāt work.
I also tried to change the output bitrate to 48k 250x, thinking it might match rate family of 48kHz source, but that also didnāt work. Neither did using the ASDM5EC-super modulator.
Iāll stick to the long filter then.
hi @jussi_laako I am very happy using filter sinc-MGa 20bit LNS15 with AresII DAC correction.
is it redundant to use DAC correction with the apodizing filter? could I use another non-apodizing filter and still be covered as I use DAC correction?
lotās of the records I play normally I see the āApodā count go up, by instance:
Yes, these are two unrelated topics. DAC correction deals with errors produced by the DAC. While apodizing filter deals with errors produced by the ADC (/ production chain).
That is normal, for such high figures, you should certainly use one of the apodizing filters. Limit is somewhere around 10 incidents per track.
Especially RedBook content tends to have a lot of such errors. Counterintuitively especially newer one. For example the earliest Pink Floyd CD releases are cleaner than the newest ones.