HQPlayer Impressions and Settings Rolling Thread
Apr 10, 2024 at 8:13 AM Post #1,021 of 1,291
I don’t think you’ve set your bits to 20 on the pcm tab. I think the HQplayer guide mentions optimal bit depth (and maybe other settings) for specific DACs.
Thanks. Changed to 20 bits, but no change. Still static.
 
Apr 10, 2024 at 8:22 AM Post #1,022 of 1,291
Thanks. Changed to 20 bits, but no change. Still static.
I believe you may have a firmware issue. Is your May a few years old? I had to update mine using a windows pc to use a particular version so that I get no static.
 
Apr 10, 2024 at 8:36 AM Post #1,023 of 1,291
I believe you may have a firmware issue. Is your May a few years old? I had to update mine using a windows pc to use a particular version so that I get no static.
Yeah, it's a few years old. Just bought from someone on Classifieds. Don't have access to any Windows gear. Oh well. NOS sounds amazing anyway :)
 
Apr 10, 2024 at 8:39 AM Post #1,024 of 1,291
Hopefully there isn't a huge difference between sample rate of 768k and those above. Guess I'll never know!
 
Apr 10, 2024 at 11:35 AM Post #1,026 of 1,291
I'm using HQPlayer with Mac M1, 16GB memory > Roon > Holo Audio May L2 > Feliks Envy

Playback is great until I try a sample rate of anything north of 768k. Then I get unlistenable static. A sample rate of 768k sounds fine and clear. Anything above that spells trouble.

Those rates exceed USB standard specification and macOS doesn't allow that, so part of the data goes lost. You can either reduce "DAC Bits" to 16 which allows you to output those rates from macOS. Alternatively you can use a NAA, such as RPi4 / Holo Red running my NAA OS image, which allows you to reach full resolution (in which case you should set "DAC Bits" to 20 for Holo DACs).
 
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Apr 10, 2024 at 11:51 AM Post #1,028 of 1,291
There is some, but you are very good already at 705.6/768k. Or even better at DSD256!
Thanks a lot for the replies, Jussi! Will try these out.
 
Apr 10, 2024 at 12:25 PM Post #1,029 of 1,291
There is some, but you are very good already at 705.6/768k. Or even better at DSD256!
Changing DAC bits to 16 worked btw! Sounds awesome. Holo May showing output of 1.536m.
So am I getting some lesser version by going down to 16 bits?
 
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Apr 10, 2024 at 12:55 PM Post #1,031 of 1,291
1.024M is non standard rate and most probably is not playable in majority of PCM DACs.
Generally playable are integer multiples of 44.1k and 48k.
1.024M is integer multiple of 32k. Jussi added these because some devices do support them but for most people these rates may cause confusion.

According to specs of May L2 max. PCM input rate is 1.536M. So set either this one or 768k as your max. PCM rate.

EDIT: I see lowering DAC bits helped.
 
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Apr 10, 2024 at 12:56 PM Post #1,032 of 1,291
Apr 10, 2024 at 2:03 PM Post #1,033 of 1,291
Changing DAC bits to 16 worked btw! Sounds awesome. Holo May showing output of 1.536m.
So am I getting some lesser version by going down to 16 bits?
AFAIK at 16 bits with LNS15 1.536m the digital noise floor will still be below the analog noise floor of the dac.
The 20 bits are more like, you have them, why not use them. Plus some people might enjoy different noise shapers or lower output rates and then the 20 bits will also be needed.
 
Apr 10, 2024 at 11:00 PM Post #1,034 of 1,291
I have been using HQplayer with my M1 Mac Mini for a month now. While I am able to perform DSD256 conversions, I have been unable to achieve DSD512. As a result, I am contemplating the purchase of a powerful PC solely for the purpose of carrying out DSD512 conversions. However, I am faced with the predicament of not having an extra room to accommodate a noisy and high-powered PC. Additionally, placing a PC with a monitor in the living room would disrupt the harmony of my home setup.

Given these limitations, I am curious if there are any laptops available that possess enough power to handle DSD512 conversions. It would be ideal if I could place the laptop in the living room and enjoy my music in my room without any disruptions.
 
Apr 10, 2024 at 11:02 PM Post #1,035 of 1,291
Set the 20 kHz filter and use what ever you like. It doesn't matter, since you already have a full track length of constant ringing. Plus truncated transients everywhere else except exactly center sample of the entire track. (PGGB uses filter that has length equal to length of the track, so it rings for the track's length)
I wanted to come back to this statement. Does this mean that your sinc-L and similar very long filters will also output music with constant ringing?
 

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