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[satbox]

Hello,
I'm trying to upsample all to 8xDSD (DSD512) but I have dropouts (upsampling to 4xDSD is OK). My configuration is the following:

- DAC: T+A DAC 8 DSD (DSD512 compliant)
- JRiver MC 20 with:
     - Audio device set to PDP3000HV ASIO 1.03
     - Buffering: set to 500 milliseconds
     - Use large hardware buffers checked
- Computer: I7 6700 with 8GB RAM. When upsampling to 8xDSD, processor load is around 16%. Win 10 PRO with AO 2.0

Any idea? Thank you!!!

[JimH]

What is the full version of MC20?

For this type of advanced feature, you might want to try something more current.  MC21 or MC22.

Limited bandwidth?

Is the ASIO from the manufacturer of the DAC?

Audiophile Optimizer, perhaps?

What is T & A?

[satbox]

Thank you for your answer.

What is the full version of MC20?
The last one

For this type of advanced feature, you might want to try something more current.  MC21 or MC22.

Limited bandwidth?
I have the same problem with music files stored on the SSD installed in the computer

Is the ASIO from the manufacturer of the DAC?
Yes

Audiophile Optimizer, perhaps?
Maybe, have to try.

What is T & A?
http://ta-hifi.de/index.php?id=702

[JimH]

Please state the full version #.  It's under Help > About.

By bandwidth, I meant that the network itself could be limiting.  Or antivirus software checking the file.

[satbox]

Full version is 20.0.131

I don't use the network, music files are stored on the SSD of the player where JRiver is installed.

No antivirus installed on the computer, Windows Defender is desactivated.

[JimH]

Please run the benchmark tool in MC's Help menu and paste the results here.

[satbox]

=== Running Benchmarks (please do not interrupt) ===

Running 'Math' benchmark...
    Single-threaded integer math... 4,478 seconds
    Single-threaded floating point math... 3,092 seconds
    Multi-threaded integer math... 1,153 seconds
    Multi-threaded mixed math... 0,824 seconds
Score: 1990

Running 'Image' benchmark...
    Image creation / destruction... 0,378 seconds
    Flood filling... 0,395 seconds
    Direct copying... 0,606 seconds
    Small renders... 1,113 seconds
    Bilinear rendering... 0,916 seconds
    Bicubic rendering... 0,491 seconds
Score: 5642

Running 'Database' benchmark...
    Create database... 0,192 seconds
    Populate database... 1,008 seconds
    Save database... 0,203 seconds
    Reload database... 0,061 seconds
    Search database... 0,822 seconds
    Sort database... 0,932 seconds
    Group database... 0,667 seconds
Score: 5535

JRMark (version 20.0.131): 4389

[JimH]

A good machine.  It's possible that it's at its limit though.

You're working in an area where not many users go, but the fact that it works for 4x but not 8x suggests that something (possibly including the DAC) has found its limit.

Maybe someone else will have other ideas.

[satbox]

OK, thank you for your help.
I think it's more a buffer issue but 500ms is the max., so... Many users use this DAC to upsample to 8xDSD and it works fine.

[luisik]

I am having exactly the same problem.

My DAC is a ifi iDSD and I also have a quite powerful computer, where I get my files directly from.

I think it is a problem with JRiver software, because when I upsample to 8xDSD using this DAC with HQPlayer everything sounds smooth and cristal clear, problems free.