HiBy R8 User Impressions
Sep 8, 2020 at 11:00 AM Post #767 of 3,161
Don’t discount the fact that these tracks can also be upscale by the usages of software algorithms as well :)

What I meant, in this case specific to Tidal and R8 w/MQA 16x, if you are using the same DAP and streaming the same track, you should be able to unfold to the same master track sampling rate. I'm not familiar with Tidal and if there is some bandwidth limiting setting, but in theory both DAPs should read the same unless there is a sw bug or some discrepancy in setting.
 
Sep 8, 2020 at 11:01 AM Post #768 of 3,161
What I meant, in this case specific to Tidal and R8 w/MQA 16x, if you are using the same DAP and streaming the same track, you should be able to unfold to the same master track sampling rate. I'm not familiar with Tidal and if there is some bandwidth limiting setting, but in theory both DAPs should read the same unless there is a sw bug or some discrepancy in setting.

There's something funny going on though. That track from Tidal does not have an original sample rate of 705.6kHz, but of 88.2kHz, so it must be the player just upsampling the audio to the highest possible sample rate.

1599577302613.png
 
Sep 8, 2020 at 11:04 AM Post #769 of 3,161
There's something funny going on though. That track from Tidal does not have an original sample rate of 705.6kHz, but of 88.2kHz, so it must be the player just upsampling the audio to the highest possible sample rate.

1599577302613.png

This is exactly what I am saying in my previous post. And I have not seen any option to disable the upsampling.
 
Sep 8, 2020 at 11:05 AM Post #770 of 3,161
This is exactly what I am saying in my previous post. And I have not seen any option to disable the upsampling.

Is this a good thing or a bad thing?
 
Sep 8, 2020 at 11:10 AM Post #771 of 3,161
Is this a good thing or a bad thing?

I don't think it is a bad thing that they do SW upsampling but (also mentioned this before) I don't see any use for it, as I am not a Tidal / MQA user. They might have done it to by-pass some internal filters of the DAC and maybe do a better SW implementation. But I would prefer to disable it to save a bit more battery.
 
Sep 8, 2020 at 11:13 AM Post #772 of 3,161
For example, T+A HA200 desktop DAC / amplifier does that:

https://audiophilestyle.com/forums/...headphone-amp/?do=findComment&comment=1035222

"In 'NOS' PCM mode digital input data is directly fed to the converter stages of the DACs. External oversampling (in the DSP in front of the DAC chips) and internal oversampling filters in the DACs are bypassed. In this way it is possible to directly feed the DACs with externally oversampled signals at 768 kSps and use an external oversampling of choice."
 
Sep 8, 2020 at 11:14 AM Post #773 of 3,161
I don't think it is a bad thing that they do SW upsampling but (also mentioned this before) I don't see any use for it, as I am not a Tidal / MQA user. They might have done it to by-pass some internal filters of the DAC and maybe do a better SW implementation. But I would prefer to disable it to save a bit more battery.

Sorry, I missed your post.

It sounds similar to what Sony does on their A100/ZX500 players. They have a setting, Hi-Res Streaming. When it's off, all audio coming from sources like Tidal or other apps is played at 16bit/48kHz. If you turn on the setting, then all audio is played at 32bit/192kHz.

LG were able to interact with the Tidal app and see when MQA is being played back, and then play the file accordingly, but it's probably not easy work to do, so this is why other manufacturers would choose to just upsample everything.
 
Sep 8, 2020 at 12:11 PM Post #774 of 3,161
What else do you think could be upgraded? The only possible "upgrade" would be the AK4499 change which would not even make any sense, at least would not be a reason for me to "upgrade". They might try to push the limits and make something like a cheaper SP2000 (more on-board storage like 512Gb, AK4499) but that would be at least +€1000 which would position it in another segment. I don't think they could change the board and overall design just for an upgrade, and AK4499 is not a drop in replacement for AK4497. So I frankly would not expect any product in less than two years time. Especially if you think the LTE conformance / acceptance must have costed them a fortune already. Doing that again in less than a year with a new product? I am not so sure about that.
Perhaps for me the best update should come with a novel implementation of the amplification, or perhaps it should surprise us with modules something similar as it happens with DX220 or N6ii, or perhaps replaceable batteries? I don't know but I'll leave this link here, clearly the R8 can significantly update with big differences, a matter of creativity...

https://es.aliexpress.com/item/1005001305228466.html?spm=a2g0s.8937460.0.0.7bf62e0epRGDq4
 
Sep 8, 2020 at 12:23 PM Post #775 of 3,161
Perhaps for me the best update should come with a novel implementation of the amplification, or perhaps it should surprise us with modules something similar as it happens with DX220 or N6ii, or perhaps replaceable batteries? I don't know but I'll leave this link here, clearly the R8 can significantly update with big differences, a matter of creativity...

https://es.aliexpress.com/item/1005001305228466.html?spm=a2g0s.8937460.0.0.7bf62e0epRGDq4

Haaah! Windows10 / 64 bit with intel atom X5 Z8350 quad-core.
 
Sep 8, 2020 at 5:33 PM Post #776 of 3,161
That’s great. Problem solved. Many thanks.
The sample rate on the R8 (like the R6 Pro) will always show max bitrate, not what the actual track is sampled at. The software is not upsampling to the max I believe it's a limitation or a quirk in HiBy's implementation of the display. Either way it's working like it should. Plug in headphones and enjoy.
 
Sep 8, 2020 at 8:02 PM Post #777 of 3,161
Perhaps for me the best update should come with a novel implementation of the amplification, or perhaps it should surprise us with modules something similar as it happens with DX220 or N6ii, or perhaps replaceable batteries? I don't know but I'll leave this link here, clearly the R8 can significantly update with big differences, a matter of creativity...

https://es.aliexpress.com/item/1005001305228466.html?spm=a2g0s.8937460.0.0.7bf62e0epRGDq4
Could only imagine how terrible windows on a dap would be. Also doesn't 1 ak44999 cosume more power than 2 ak44997 .Which is the reasoning behind the m15 heating issue .Doesnt seem worth it to me .
 
Sep 8, 2020 at 9:13 PM Post #778 of 3,161
The sample rate on the R8 (like the R6 Pro) will always show max bitrate, not what the actual track is sampled at. The software is not upsampling to the max I believe it's a limitation or a quirk in HiBy's implementation of the display. Either way it's working like it should. Plug in headphones and enjoy.
So are you saying it’s not really 768k that I’m hearing on a Tidal track, for example?
 
Sep 9, 2020 at 12:17 AM Post #780 of 3,161
I appreciate Hiby has included a puzzle with the DAP! Currently trying to decipher the meaning. I absolutely agree with Hiby, the IRS has extremely sensitive hands.

FB2000EB-13AC-4580-B0F8-C330FE51F5A2.jpegD076A686-4B4D-4444-B6BD-4F59774C03BE.jpeg3D83434B-0466-4462-9985-C3CA94B5E053.jpegEA506200-FFE9-4685-9FAA-864B4FEC4261.jpegE19C8E0B-4DA6-4FE9-9FE1-5991A22F1FCA.jpeg461FE3B0-9453-45E4-8B90-9C274ABA2998.jpeg8BC011B1-1E64-42B1-944D-A0E4E9D79BF1.jpeg

Wow, didn't realize there is a camera app to translate :) I have to try it! Saw the letter, and just put it aside.
 

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