HifiBerry DAC8x

[wkl3968]

Just started testing the HifiBerry DAC8x as shown in the photo. it works for Channel 1 and 2 Stereo out of the box with the right config.txt. dtoverlay=hifiberry-dac8x. I also tried to duplicate the 1-2 channels to channel 3 to 8 using qpwgraph as shown in the photo but the setting is not sustained after reboot. still need to figure out how to approach this. the main reason I want to use a hifiberry DAC8x because of the hires audio support, can setup different sound stage (4.1, 5.1, 7.1 and etc) and most importantly, I want the phone call or phone navigation only output from certain channels (not all). Im looking for guidance on how to do this.

Screenshot 2026-04-07 222521.png (230.13 KiB) Viewed 339 times

[wkl3968]

Here is the hardware setup. It is sleek and high quality. I need to spend time to setup correctly and have the ability to customize the audio piping. Any guidance will be appreciated.

1775572795490621881412620844318.jpg (2.33 MiB) Viewed 337 times

[hudiy]

After configuring the routing using qpwgraph, you can save it to a file and restore it (e.g., in hudiy_startup.sh) using the following command:

Code: Select all

qpwgraph --minimized --activated --exclusive saved_routing.qpwgraph

viewtopic.php?p=1184#p1184

[wkl3968]

Is it possible to pipe the Bluetooth or phone call or navigation from phone to a certain channels and have independent volume control?

[wkl3968]

so the hudiy_startup.sh should look like this? with so many customization I plan to do with hudiy, is there a way I can use github to allow me to reconfigure the a freshly installed hudiy seamlessly? I'm a mechanical side, learning software .
#!/bin/bash

EC_SINK="echo_cancel_sink"
EC_SOURCE="echo_cancel_source"
EQ_SINK="hudiy_equalizer_sink"

sink_exists() { pactl list short sinks 2>/dev/null | awk '{print $2}' | grep -Fxq "$1"; }
until pactl info >/dev/null 2>&1; do sleep 0.1; done

# Gives PipeWire and WirePlumber additional time to detect all audio devices
sleep 1

sink_exists "$EQ_SINK" || pactl load-module module-ladspa-sink sink_name="$EQ_SINK" master="$EC_SINK" plugin=hudiy_equalizer label=hudiy_equalizer control=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
sink_exists "$EC_SINK" || pactl load-module module-echo-cancel aec_method=webrtc aec_args=\"voice_detection=false\" source_name="$EC_SOURCE" sink_name="$EC_SINK"

pactl set-default-sink "$EQ_SINK"
pactl set-default-source "$EC_SOURCE"
qpwgraph --minimized --activated --exclusive saved_routing.qpwgraph
$HOME/.hudiy/share/hudiy &

[wkl3968]

Hudiy team, please help my questions above?

[hudiy]

Hudiy team, please help my questions above?

It depends on which version of the Raspberry Pi you are using. If it's a Pi 4 or Pi 5, such script will work on those versions as well as on x86_64. The Raspberry Pi Zero 2, Pi 3B, and Pi 3B+ additionally set different environment variables.

The easiest way is to copy the configuration ($HOME/.hudiy/share/config) and the scripts ($HOME/.hudiy/share/hudiy_startup.sh, $HOME/.hudiy/share/hudiy_run.sh), and then restore them after installing Hudiy.

Code: Select all

#!/bin/bash

EC_SINK="echo_cancel_sink"
EC_SOURCE="echo_cancel_source"
EQ_SINK="hudiy_equalizer_sink"

sink_exists() { pactl list short sinks 2>/dev/null | awk '{print $2}' | grep -Fxq "$1"; }
until pactl info >/dev/null 2>&1; do sleep 0.1; done

# Gives PipeWire and WirePlumber additional time to detect all audio devices
sleep 1

sink_exists "$EQ_SINK" || pactl load-module module-ladspa-sink sink_name="$EQ_SINK" master="$EC_SINK" plugin=hudiy_equalizer label=hudiy_equalizer control=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
sink_exists "$EC_SINK" || pactl load-module module-echo-cancel aec_method=webrtc aec_args=\"voice_detection=false\" source_name="$EC_SOURCE" sink_name="$EC_SINK"

pactl set-default-sink "$EQ_SINK"
pactl set-default-source "$EC_SOURCE"

qpwgraph --minimized --activated --exclusive saved_routing.qpwgraph

$HOME/.hudiy/share/hudiy &

[wkl3968]

somehow when I use the "qpwgraph --minimized --activated --exclusive /home/raspberrypi/AA_DAC8x.qpwgraph" as instructed above, hudiy fail to boot and it keeps looping the splash only.

[hudiy]

qpwgraph may be blocking the current terminal session. Try running qpwgraph --minimized --activated --exclusive /home/raspberrypi/AA_DAC8x.qpwgraph in the background by adding & at the end of the command.

Also, in background mode, some sleep might be a good idea to give qpwgraph some time to restore the routing.

Code: Select all

qpwgraph --minimized --activated --exclusive /home/raspberrypi/AA_DAC8x.qpwgraph &
sleep 2

If that does not help, please execute the $HOME/.hudiy/share/hudiy_run.sh command in the terminal and post the output.

[wkl3968]

now it can boot like normal with "&" at the back but somehow it cannot sustain the connection between Hudiy FL/FR to the 8 channels as shown in my first post. it always default to just two channels output.

Screenshot 2026-04-15 231342.png (202.21 KiB) Viewed 263 times