USB DAC limit output to 48khz?

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1

Hello,
I have HRT Music Streamer II connected to Rasplex (Raspberrypi3 - USB boot), however I can not force RasPlex to play 96kHz on HRT. Upsampling does not work above 48K, even if I set the Fixed output 96Khz limit.

There is no problem on macOS with HRT and 96kHz.

Here is my /storage/.config/modprobe.d/alsa-base.conf

options snd-usb-audio index=0
options snd_bcm2835 index=1
options snd-usb-audio nrpacks=1

/storage/.config/asound.conf (this does not work either)

pcm.!default {
        type hw
        card 0
}

ctl.!default {
        type hw
        card 0
}

PicoPlayer have some settings for HRT Music Streamer, but I do not know where I could use them in Rasplex’s ALSA (what is “80:2:24_3” ?).

Output settings: front:CARD=II,DEV=0 ALSA settings: 80:2:24_3:

my play - l:

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: II [Music Streamer II], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

HRT MUSIC STREAMER II:

cat /proc/asound/card0/stream0
www.hirestech.com 2013 REV 2.4 Music Streamer II at usb-3f980000.usb-1.3, full : USB Audio

Playback:
  Status: Stop
  Interface 1
    Altset 1
    Format: S24_3LE
    Channels: 2
    Endpoint: 1 OUT (ASYNC)
    Rates: 96000, 88200, 48000, 44100, 32000
  Interface 1
    Altset 2
    Format: S16_LE
    Channels: 2
    Endpoint: 1 OUT (ASYNC)
    Rates: 96000, 88200, 48000, 44100, 32000

Is there solution to this problem?

2

Here is the working solution from raspberrypi.org/forums/viewtopic.php?t=124016

put around.conf file in /storage/.config/

pcm.!default {
    type hw
    card 1
}
ctl.!default {
    type hw
    card 1
}

However I have had to turn off preferences>sound output>resample quality>GPU accelerated.
Low/Medium/High setting works.