Progress bar ticks slower than real while playing with down-sample from 192kHz to 96kHz, output to HQPlayer

[Steven_Yamada]

Core Machine (Operating system/System info/Roon build number)
Macbook Pro/macOS High Sierra version 10.13.8
Roon Version 1.6 (build 416) stable (64bit)

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)
Core + HQPlayer Desktop4 <---CAT6---Velop_mesh(LINKSYS)---CAT6---> Sonore MicroRendu

Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)
Sonore MicroRendu <---USB--> ISO/SPDIF ----coax---> dCS delius DAC

Description Of Issue
At playing back flac file of 192kHz, down-sample to 96kHz with “Sample Rate Conversion” DSP, progress bar ticks slower (about half of the real one) than it should be. (please find it screen shot below).

at 10/01 18:06:18, HQPlayer shows begin_sec="38" while Roon ticks is 0:18 instead of 0.38.

[dylan (Dylan Caudill)]

Hi @Steven_Yamada,

Just to verify, if you were to remove HQPlayer from the chain, does the same behavior occur?

[Steven_Yamada]

Do you mean that testing if the issue is reproduced with RAAT (Roon client on MicroRendu)
? The result is negative, i.e., it ticks as expected.

[Steven_Yamada]

Just for your information, here is the Sample Rate Conversion setting for HQPlayer output.

[noris]

Hi @Steven_Yamada,

What kind of time output do you have set on HQPlayer? HQPlayer has multiple options of displaying the play time - “time”, “remain” and “total remain”. You will want to select the first option of “time” in HQPlayer for the playback bar to properly progress in Roon.

[Steven_Yamada]

Hi @noris , HQPlayer setting for play time option is set to “time”. (as written in https://kb.roonlabs.com/HQPlayer_Setup)
For additional information, playback bar proceeds to the half point (at the middle of whole length) at the end of track playing, and continues proceeding more – even though the next track is playing. It seems like that Roon counts frames of original sampling rate (192kHz) not down-sampled one (96kHz).
Steven

[noris]

Hi @Steven_Yamada,

Thanks for confirming that aspect. I have filed a ticket regarding this issue for review with the technical team and have requested they schedule some time to attempt to reproduce your findings. I will be sure to let you know once I have more information to share. Thanks again for the report!