Big problem upsampling to DSD 8X
Mar 2, 2022 at 6:24 AM Thread Starter Post #1 of 23

music_man

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I am using Jriver to cause the Gustard X26 Pro with the clock to force to 8X DSD from Amazon music. It is skipping like crazy. After I stop play sometimes there is a bunch of noise. I have tried DOP or not. Often the DAC does not even switch to DSD 512 mode. It switches to 128 or 256. What could I be doing wrong?
 
Mar 2, 2022 at 2:07 PM Post #3 of 23
I am using Jriver to cause the Gustard X26 Pro with the clock to force to 8X DSD from Amazon music. It is skipping like crazy. After I stop play sometimes there is a bunch of noise. I have tried DOP or not. Often the DAC does not even switch to DSD 512 mode. It switches to 128 or 256. What could I be doing wrong?
@sajunky pointed out to me in another thread that you need native DSD to play at 512. I don't remember from my JRiver trial whether it supports that. If not, it would explain why the DAC falls back to a lower rate which can work even DoP.
 
Mar 2, 2022 at 3:24 PM Post #4 of 23
gimmeheadroom, Jriver does run native DSD and the feature is enabled. The 5GHZ I9 is using 2% at 2GHZ. I have no clue what is wrong. Should I try Foobar? Really upsetting because 8X DSD sounds incredible IMO.
 
Mar 2, 2022 at 3:29 PM Post #5 of 23
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Mar 2, 2022 at 4:36 PM Post #6 of 23
I am using Jriver to cause the Gustard X26 Pro with the clock to force to 8X DSD from Amazon music. It is skipping like crazy. After I stop play sometimes there is a bunch of noise. I have tried DOP or not. Often the DAC does not even switch to DSD 512 mode. It switches to 128 or 256. What could I be doing wrong?
Increase the buffer size in JRiver settings.
 
Mar 2, 2022 at 6:23 PM Post #7 of 23
I have all the buffers all the way out. I am completely open to using other software to induce upsampling. What would you guys suggest? It cannot even switch it past 128 anymore and it is set on 8X. All of the settings are the same. It was unreliable at best to begin with.
 
Mar 2, 2022 at 7:06 PM Post #8 of 23
I am using Jriver to cause the Gustard X26 Pro with the clock to force to 8X DSD from Amazon music. It is skipping like crazy. After I stop play sometimes there is a bunch of noise. I have tried DOP or not. Often the DAC does not even switch to DSD 512 mode. It switches to 128 or 256. What could I be doing wrong?
Just get Emm Labs. The dac automatically upsamples to 16x DSD and changes the filter settings in real time, according to changes (transients) in the audio waveform.

I am using their least expensive dac2x and that upsamples to 8x DSD - yes I agree 8x sounds incredible. I think playback designs also upsamples to 8x DSD - another great sounding dac.
 
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Mar 2, 2022 at 7:17 PM Post #10 of 23
DSD512 is Oversampling 16X, which, if done right, many equipments would be struggling to compute so on the fly. The DSD256 is the 8X one
Are you sure? I think 16x is DSD1024
  • DSD 64 (aka DSD) is a 2.8 MHz .dsf file, which is 64 times 44.1 kHz
  • DSD 128 (aka Double (2x) DSD) is a 5.6 MHz .dsf file, 128 times 44.1 kHz
  • DSD 256 (aka Quad (4x) DSD) is a 11.2 MHz .dsf file, 256 times 44.1 kHz
  • DSD 512 (aka Octa (8x) DSD) is a 22.4 MHz .dsf file, 512 times 44.1 kHz
  • DSD 1024 (16x DSD) is a 44.8 MHz .dsf files, or 1024 times 44.1 kHz
 
Mar 2, 2022 at 7:25 PM Post #11 of 23
DSD64 is 2x
DSD128 is 4x
DSD256 is 8x
DSD512 is 16x

The number 64 derived from 32 bit depths. This 32 bit Standard is NyQuist standard which is when sampling twice the 16/44.1 to meet NyQuist theory. The bandwidth that human can no longer tell the differences would be also Twice the human capability of upto 20Khz. Gives some headroom, and we have 44.1Khz

So NOS or None Over Sampling is actually 2X sampling from Redbook standards of 16/44.1Khz. Then we can have further Oversampling by the factor of 2 on top of this, so that is DSD64 (which is 2X Oversampling)
 
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Mar 2, 2022 at 7:31 PM Post #12 of 23
Mar 2, 2022 at 7:41 PM Post #13 of 23
DSD is an Oversampled from NyQuist or NOS theory (which stands for Non Over Sampling). This Non Over Sampling is actually Sampling Twice the standard of 16/44.1 by NyQuist theory. So, Oversampling starting out from NyQuist which puts the bit at 16X2 = DSD64

So, DSD64 is the very first Rate of DSD format.

Double rate is again Twice of that

The rate of the DSD is not the Oversampling rate. So yes Octuple-rate DSD IS (DSD512), but that is not the Rate that the Sigma Delta is Oversampling at. The rate of it Oversampling is 16x
 
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Mar 2, 2022 at 8:08 PM Post #14 of 23
Also DSD is not called Upsampling. It is “Conversions”. Upsampling is when you increase the quantizations of bit depths and or original frequencies , for example upsampled from 44.1Khz into 88.2Khz. The sampling rate will have been changed. Or you can upsampled 16/44.1 into 24/44.1

Oversampling is a modulations of Sigma Delta into the Sampling Rate that is at the least Twice as much of NyQuist theory. So, DSD64 is an Oversampled conversion over NyQuist theory

Conversions is when multi bit binary info is being modulated by sigma delta to become Square Waves before it becomes Analog waves. Digital to Analog conversion

All PCM will have to be converted into Square Wave before it can become Music. So all Digital music will have to become DSD in order to become music.

Therefore, DSD is not only a format, but it is an Uncompressed digital music, where as PCM is Compressed digital music, which requires modulations to be uncompressed (DSD) before it become music

https://www.mojo-audio.com/blog/dsd-vs-pcm-myth-vs-truth/

This is a quote from it

“When they are decoding PCM, a Delta-Sigma DAC chip has to first convert it into DSD, the chip's native format”
 
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Mar 2, 2022 at 8:11 PM Post #15 of 23
To enable Native DSD on Jriver (asuming you're using the ASIO driver of your DAC):
Tools>Options>Audio Device>Device Settings>disable/untick DSD bistream in DoP format

As others say its CPU intensive. To OP what is your CPU?
 
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