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On 2/22/2020 at 8:16 AM, Miska said:

 

If you have some basic ADC you can check with 1 kHz tone for example if it is reproduced at correct frequency. Doesn't need to be a fancy sound card for that, probably motherboard audio on a regular PC or Mac is enough for the purpose.

 

 

 

So with the D90, how would this work. I want to ask Topping to do the test and send the results, but I want to be very clear with what I ask them to do. 

 

How does playing a 1 kHz tone show a difference between 11.2 MHz and 12.2 MHz support?

 

@Yviena did you ever do this test?

 

 

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I've been really happy with the various changes to HQ player in the past months.

I have been using the ASDM7EC Modulator for DSD 128, on an iMac.

I got a Fav Gerry Mulligan DSD 5.6 Download of "What is There to Say?",

and to my surprise, I wasn't liking it, too aggressive treble, not the warm wrap-around textured sound that I was used to from the Re-issue LP I've had for years.

At Miska's suggestion, I tried the ASDM5EC Modulator just now, and Viola!

I don't have any CPU issues with the #7EC Modulator, 

but now I'm thinking the #5EC is possibly better suited to up to DSD 128.

I'm just using the Poly-Sinc-ext2 and Mytek ( also Lampi Euforia).

It sounds just the way I thought it was going to yesterday.

So I'm sticking with it.

Am I crazy?

Well...

 

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7 hours ago, Miska said:

I have to say I don't know what it is doing inside...

 

Yes that's why I was surprised !

 

I think maybe 1 or 2 people on earth know what's going inside. But it does sound glorious. 

 

Plus I imagine you're throwing all kinds of test inputs to work out what it's doing on the DSP side 😃

 

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On 2/22/2020 at 8:16 AM, Miska said:

 

If you have some basic ADC you can check with 1 kHz tone for example if it is reproduced at correct frequency. Doesn't need to be a fancy sound card for that, probably motherboard audio on a regular PC or Mac is enough for the purpose.

 

 

 

Does this provide the answer? 1kHz tone?

 

image.thumb.png.be9f2ff0c91559cef5a82dc7b27361a5.png

 

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3 hours ago, asdf1000 said:

 

Does this provide the answer? 1kHz tone?

 

image.thumb.png.be9f2ff0c91559cef5a82dc7b27361a5.png

 

 

No, ASR's measurements are useless. They use 44.1k sampling rate and PCM input. To measure this you need to use 48k-base DSD input... If it is played with 44.1k clock the peak appears at 918 Hz instead of 1 kHz.

 

Signalyst - Developer of HQPlayer

Pulse & Fidelity - Software Defined Amplifiers

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33 minutes ago, Miska said:

 

No, ASR's measurements are useless. They use 44.1k sampling rate and PCM input. To measure this you need to use 48k-base DSD input... If it is played with 44.1k clock the peak appears at 918 Hz instead of 1 kHz.

 

 

Can you link me to such a test file ?

 

And I can send to Topping.

 

The easier we can make it for them to test, the quicker we can find out.

 

They don’t have HQPlayer or do upsampling.

 

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7 minutes ago, asdf1000 said:

Can you link me to such a test file ?

 

They can use HQPlayer to test it, you don't need a file for that.

 

7 minutes ago, asdf1000 said:

They don’t have HQPlayer or do upsampling.

 

Maybe they should test their products with a player their customers use... ;)

 

Signalyst - Developer of HQPlayer

Pulse & Fidelity - Software Defined Amplifiers

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13 minutes ago, Miska said:

They can use HQPlayer to test it, you don't need a file for that.

 

It’s much easier to send them a test file than get them to work out HQP.

 

There may be more new HQP users if this is identified to be HQP friendly... DSD Direct and both family rates supported.

 

More affordable options than RME.

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6 hours ago, asdf1000 said:

And in ASR's measurement I see spike at just under 900Hz , so is that what you're looking for?

 

The fundamental would be at ~918 but this data shows the main peak right at 1 kHz.  Was that 1 kHz signal generated at DSD x 48?  The other side spurs are just distortion products.

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3 minutes ago, Solstice380 said:

Was that 1 kHz signal generated at DSD x 48?

 

No. I'm hoping to get a DSD x48 test file from @Miska that I can send to Topping to test.

 

This would be the quickest way to get the info from them.

 

I don't have time to teach them HQPlayer and they don't know what it is and we don't know if there really are many Topping users that use HQPlayer, so they probably have no motivation to learn.

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I created the DSD256x48 test files using the above 1kHz tone. I set HQP Pro volume to -6dB. I used ASDM7EC and ext2.

 

Any other test files I should send to Topping, since they are happy to measure @Miska ?

 

I am happy to convert to HQP Pro if you can point me direct to the PCM test files.

 

Happy to share Topping's results here.

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Hello everyone, anyone with a Pro-ject S2 DAC and Roon and HQPe having strange issues?

 

Like playing with specific HQPe settings like these

image.thumb.png.c164633a3e373196aec54ae2c9ffcd97.png

 

And Roon not using it properly and sounding slowish and weird with reverberation (see below) like no upsampling being made

 

image.thumb.png.e500a34aa714cbbd56ab0e705d182f7b.png

 

 

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