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I would like to configure a Phoniebox (play music using RFID reader). I configured pretty much everything, the interface works and indicates that I'm reading the music file, but the rPi doesn't play any sound on the USB speakers. My hypothesis is that the problem is either:

  • with my audio interface configuration
  • with the USb-to-jack adapter
  • somewhere else?

I did go through and implemented this topic: How can I use an external USB sound-card and set it as default? The problem is that when I try to verify the codec, the examples are disabled and I have no idea what to try more than that:

pi@raspberrypi:/ $ vcgencmd codec_enabled MPG2 MPG2=disabled pi@raspberrypi:/ $ vcgencmd codec_enabled WVC1 WVC1=disabled

On one hand I think the card seems to exist:

pi@raspberrypi:/ $ cat /proc/asound/cards 1 [Audio ]: USB-Audio - USB Audio Generic USB Audio at usb-20980000.usb-1.2, full speed

On the other hand the aplay command doesn't give anything, and I don't know how to read the lsusb output:

pi@raspberrypi:/ $ lsusb Bus 001 Device 004: ID ffff:0035 Bus 001 Device 003: ID 001f:0b21 Bus 001 Device 002: ID 214b:7250 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub pi@raspberrypi:/ $ aplay -l **** List of PLAYBACK Hardware Devices **** pi@raspberrypi:/ $ amixer -c 1 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 255 Mono: Playback 63 [25%] [on]

FYI I also took a look at the amixer command, but I don't know what to do with the results:

 pi@raspberrypi:/ $ amixer scontrols Simple mixer control 'PCM',0 pi@raspberrypi:/ $ amixer controls numid=3,iface=CARD,name='Keep Interface' numid=1,iface=MIXER,name='PCM Playback Switch' numid=2,iface=MIXER,name='PCM Playback Volume'

I searched the interface, but did not find anything. Even here https://learn.adafruit.com/usb-audio-cards-with-a-raspberry-pi/figure-out-your-chipset all the commands for the different dmesg don't yield anything. Should I change the configuration somehow? Should I buy another adapter (I don't know when you can talk about a "soundcard" instead of an "adapter")? Should I ditch it all and buy a rPi with jack output directly?

My hardware is:

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1 Answer 1

Reset to default
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Update: apparently the hardware may be at fault, I gave a try with this USB sound card and it works :) https://www.amazon.de/dp/B089YXDFC9?psc=1&ref=ppx_yo2ov_dt_b_product_details

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