how to change the default card permanently - help needed

[RPlanto]

hi,
I have been using LMS on a raspberry pi zero w and 2w for over one year to stream the signal from my turntable with the wavin plugin ("wavin:default" as a favourite) and a sound card with very good results.

However now i want to do the same with a pi 4b and i have a problem: the USB card is not always set as default card and when this happens, there is no sound...

Searching the internet i have learned how to set the USB soundcard as default modifying /etc/asound.conf

I use:

sudo vi /etc/asound.conf

to access the file, modify it accordingly, save the changes, and voila, i have my sound again. all good here.

The problem is that when i reboot the pi, the file returns to its original status and i need to modify it again.....

Is there a way to save these changes permanently?

If not, is there any other way to set up the USB soundcard as default permanently?

thank you for your help.

[bpa]

Probably no need to do anything with asound.conf

The default part of the "wavin::default" is ALSA device name.
"default" is mapped onto a ALSA named card.

The ALSA name of the card often remains the same so you should be useing somehting like "wavin:ALSANAME"

use the command "arecord -l" (without quotes and option is lower case letter L not digit one) to shpw what Alsa capture devices are available and pick your card.

[RPlanto]

Probably no need to do anything with asound.conf

The default part of the "wavin::default" is ALSA device name.
"default" is mapped onto a ALSA named card.

The ALSA name of the card often remains the same so you should be useing somehting like "wavin:ALSANAME"

use the command "arecord -l" (without quotes and option is lower case letter L not digit one) to shpw what Alsa capture devices are available and pick your card.

Thanks bpa.
Forgot to mention:
I tried as many combinations with the name ("HD") and number ("1") of the card as I could think of:

wavin:HD
wavin:HD,0
wavin:1
wavin:1,0

None of those work, only wavin:default works...

[bpa]

Thanks bpa.
Forgot to mention:
I tried as many combinations with the name ("HD") and number ("1") of the card as I could think of:

wavin:HD
wavin:HD,0
wavin:1
wavin:1,0

None of those work, only wavin:default works...

What is the output of "arecord -l " ?

[RPlanto]

tc@pCP:~$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: HD [USB Sound Blaster HD], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: HD [USB Sound Blaster HD], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0

[RPlanto]

isn't there a way to make the changes to asound.conf permanent? because this solution works perfectly...

[Greg Erskine]

See "My changes disappeared".

Although having to modify asound.conf seems a little drastic.

Most RPi have a headphones jack that usually is the ALSA default.

Most software *should* be able selection ALSA output by card name, rather than card number or the default which may change.

[bpa]

Try the following URLs

wavinlughw:CARD=HD,DEV=0
wavinlughw:CARD=HD,DEV=1

edit:
spaces added to avoid emoji

wavin: plughw:CARD=HD,DEV=0
wavin: plughw:CARD=HD,DEV=1

[bpa]

See "My changes disappeared".

Although having to modify asound.conf seems a little drastic.

Most RPi have a headphones jack that usually is the ALSA default.

Most software *should* be able selection ALSA output by card name, rather than card number or the default which may change.

waveinput needs an ALSA capture device so headphone is not relevant.

[Greg Erskine]

Thanks