Satellit
n00b
Joined: 23 Aug 2023
Posts: 1
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 Posted: Wed Aug 23, 2023 5:55 pm Post subject: Connect alsa with DAC of AV amp via USB |
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Hello,
I am new in this forum and I saw a lot of expertise about alsa, which is very impressive. My AV amp IOTAVX AVX17 has a USB plug to connect his DAC to external units. I have installed volumio on my Raspberry 4 and I connected it via USB with my AV amp. But I cannot get not a single beep out of it:
aplay $HOME/test-sound-raspberry-tips.wav
MY SETUP
AV amp not connect via USB:
| Code: | volumio@volumio:~$ aplay -l | awk -F \: '/,/{print $2}' | awk '{print $1}' | uniq
b1
Headphones
sndrpihifiberry
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| Code: |
volumio@volumio:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub |
With plugged AV amp via USB:
| Code: |
volumio@volumio:~$ aplay -l | awk -F \: '/,/{print $2}' | awk '{print $1}' | uniq
b1
Headphones
sndrpihifiberry
QCC3031
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| Code: |
volumio@volumio:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 0a12:4007 Cambridge Silicon Radio, Ltd
Bus 001 Device 005: ID 0a12:4010 Cambridge Silicon Radio, Ltd
Bus 001 Device 004: ID 10c4:1c02 Cygnal Integrated Products, Inc.
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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Therefore, alsa recognises the DAC as QCC3031 card at USB 2.0. alsamixer shows QCC3031 as card number 5.
Linux registers QCC3031:
| Code: |
volumio@volumio:~$ dmesg | grep -i QCC3031
[ 4.634944] usb 1-1.4.2.1: Product: QCC3031
[ 4.654590] input: QTIL QCC3031 as /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4/1-1.4.2/1-1.4.2.1/1-1.4.2.1:1.4/0003:0A12:4007.0002/input/input0
[ 4.716350] hid-generic 0003:0A12:4007.0002: input,hidraw1: USB HID v1.11 Device [QTIL QCC3031] on usb-0000:01:00.0-1.4.2.1/input4
[ 4.726994] input: QTIL QCC3031 as /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4/1-1.4.2/1-1.4.2.1/1-1.4.2.1:1.5/0003:0A12:4007.0003/input/input1
[ 4.796370] hid-generic 0003:0A12:4007.0003: input,hidraw2: USB HID v1.11 Keyboard [QTIL QCC3031] on usb-0000:01:00.0-1.4.2.1/input5
[ 4.804992] hid-generic 0003:0A12:4007.0004: hiddev97,hidraw3: USB HID v1.11 Device [QTIL QCC3031] on usb-0000:01:00.0-1.4.2.1/input6
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| Code: |
volumio@volumio:~$ cat /proc/asound/devices
0: [ 0] : control
1: : sequencer
16: [ 0- 0]: digital audio playback
32: [ 1] : control
33: : timer
48: [ 1- 0]: digital audio playback
64: [ 2] : control
80: [ 2- 0]: digital audio playback
160: [ 5] : control
176: [ 5- 0]: digital audio playback
184: [ 5- 0]: digital audio capture
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The asound.conf looks like this:
| Code: |
volumio@volumio:/etc$ cat asound.conf
pcm.!default {
type empty
slave.pcm "volumio"
}
pcm.volumio {
type empty
slave.pcm "volumioOutput"
}
# There is always a plug before the hardware to be safe
pcm.volumioOutput {
type plug
slave.pcm "volumioHw"
}
pcm.volumioHw {
type hw
card "sndrpihifiberry"
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the config.txt looks like this:
| Code: |
volumio@volumio:/boot$ cat config.txt
initramfs volumio.initrd
gpu_mem=32
max_usb_current=1
dtparam=audio=on
audio_pwm_mode=2
dtparam=i2c_arm=on
disable_splash=1
hdmi_force_hotplug=1
force_eeprom_read=0
include userconfig.txt
#### Volumio i2s setting below: do not alter ####
dtoverlay=hifiberry-dac
#### Volumio i2s setting below: do not alter ####
dtoverlay=hifiberry-dac
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I tried to set card 5 as default card via the /etc/asound.conf by inserting card 5 into the default statements:
| Code: |
pcm.!default {
type empty
slave.pcm "volumio"
card 5
}
...
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It doesn’t work. I am a little bit lost and I don’t know how to continue. Is there a way to success? |
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Multimedia
