Hi there.
The other day I ran once more into a strange behavior of the Piano21.
That DAC is a little tricky!
Especially the Dual-Mono related controls get mixed up once on a while.
Getting back to normal is not that easy.
Unfortunately pCP doesn't cover a proper DAC initialization if things
get
messed up.
That's why I wrote myself a Piano21 init script:
Code:
--------------------
#!/bin/sh
#
# script to initialize alsamixer settings for
# Allo Piano 2.1 in Dual-Mono config
#
# written by soundcheck for
# pCP >4.1
# Rev 1 - Mar-01-2019
#
###################################################################
[ $(whoami) != root ] && { echo "*** Please, run as root!"; exit 1; };
pgrep squeezlite >/dev/null && pkill squeezelite
rm -f /var/lib/alsa/asound.state
CARDNR="$(cat /proc/asound/cards | grep "\[PianoDACPlus" | awk -F " "
'{print $1}')"
alsactl init $CARDNR >/dev/null 2>&1
amixer -q -c $CARDNR set 'Dual Mode' 'Dual-Mono'
amixer -q -c $CARDNR set 'Subwoofer mode' 'None'
amixer -q -c $CARDNR set 'DSP Program' 'Ringing-less low latency FIR'
amixer -q -c $CARDNR sset 'Digital' unmute
amixer -q -c $CARDNR sset 'Digital' frontright,mute
amixer -q -c $CARDNR set 'Digital' '100%'
amixer -q -c $CARDNR sset 'Subwoofer' unmute
amixer -q -c $CARDNR sset 'Subwoofer' frontleft,mute
amixer -q -c $CARDNR set 'Subwoofer' '100%'
amixer -q -c $CARDNR set 'Master' '100%'
amixer -q -c $CARDNR set 'Analogue Playback Boost' '0%'
amixer -q -c $CARDNR set 'Analogue' '100%'
amixer -q -c $CARDNR set 'Deemphasis' 'off'
amixer -q -c $CARDNR set 'Volume Ramp Down Rate' '1 sample/update'
amixer -q -c $CARDNR set 'Volume Ramp Up Rate' '1 sample/update'
amixer -q -c $CARDNR set 'Volume Ramp Down Step' '1dB/step'
amixer -q -c $CARDNR set 'Volume Ramp Up Step' '1dB/step'
alsactl store $CARDNR
chmod 666 /var/lib/alsa/asound.state
filetool.sh -b >/dev/null
echo "*** Please, reboot the system now!"
exit 0
--------------------
ssh as tc, "su root", copy/paste above into the shell, and then run
"reboot".
Let me know if it works.
Enjoy.
:::' my audioblog - latest series: RaspBerry PI - \"The Audio Engine\"
' (http://soundcheck-audio.blogspot.com):::
------------------------------------------------------------------------
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