Support playback DSD 48x

Support
1

Core Machine (Operating system/System info/Roon build number)

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)

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Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)

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Description Of Issue

I use HQPlayer embedded 4 on my NUC (see profile) with ubuntu server 18.04.2 and Roon Core (build 416). I can normal playback pcm content 44.1 khz with upsampling to DSD 44.1x256 but I can’t do it with pcm content 48/96/192 khz with upsampling to DSD 48x256 (playback does not start) although I can do it from native HQP interface. Why?

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6CC7B3AF-EF75-489C-A724-42AC5F8B40D1.jpeg2048×1484 1.05 MB

2

Hi Katun

In HQPe config do you have “48k DSD” enabled?

Do you know for sure your DAC supports 1bit 12.288 MHz sample rate?

3

Sure !
Here are the screenshots from desktop (playback to the same NAA - my ethernet DAC on dual mono AK4493):

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5BF3EB04-5242-444B-9972-C56FF98E71ED.jpeg811×520 116 KB
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48E0E4E2-2430-423B-AE73-42372FCB8D9F.jpeg372×668 87.5 KB

5

Hi Sean! How does it work for you?

8

I do not understand anything! Roon on my NUC play 24x96 through WinHQP installed on the desktop with Win7 (HQPlayer Desktop), but does not play 24x96 through HQPlayer 4 embedded installed on that NUC. Endpoint with NAA is the same in both cases. HQPlayer settings are also the same. :frowning:
Is there really a problem with HQPlayer 4 embedded ( Version 4.10.2)?

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7478BC5D-B02D-4588-BA8A-961164BC2F9B.jpeg2048×1502 974 KB
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C636481B-88BE-48C9-9B46-BE75DFC52F73.jpeg2048×1496 842 KB

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8D4FEF38-C6B8-4A7D-830E-1AA0FC361F4E.jpeg1536×1976 635 KB

9

You are missing check in the “48k DSD” box under “Network Audio backend”. This means that the backend filters out 48k-base DSD rates (because most DACs don’t support it). While you demand such output with “Auto rate family” combined with 48k-base PCM input.

This same setting is also in HQPlayer 4 Desktop. But doesn’t exist in Desktop v3.

Desktop v3 and Embedded v4 are somewhat different. But Desktop and Embedded v4 use same engine.

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