# USB DAC recognised but can only get sound from analogue

**URL:** https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587
**Category:** Pi MusicBox (archive)
**Created:** [November 13, 2019, 9:56am UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587 "2019-11-13T09:56:44Z")
**Posts on this page:** 8
**Page:** 1

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### Author: ![Mr\_P](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.mopidy.com/mr_p/32/1341_2.png) [@Mr\_P](https://discourse.mopidy.com/u/Mr_P)
#### Post date: [November 13, 2019, 9:56am UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/1 "2019-11-13T09:56:45Z")

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Hi guys, I’ve tried everything I could possibly find online to fix this issue and am truly stumped at this point.

Pi MusicBox is working, Spotify and network files stream successfully through web browser and I get sound from the analogue output of my Pi 2 Model B, but I get ZERO sound from my DAC which uses an X-Mos chipset USB card.

I’ve toggled all the settings under USB audio to no avail, and see no errors running speaker-test, but there is no pink noise to be heard…

The USB card is listed under amixer and aplay -l and is the default playback device, it is unmuted and volume maxed as far as i can tell in alsamixer…

have I missed some settings somewhere?

any help will be greatly appreciated, this is an amazing piece of software that I really want to get working!

Thanks

> root@MusicBox:~# amixer  
> Simple mixer control ‘VIO Internal Clock Validity’,0  
> Capabilities: pswitch pswitch-joined penum  
> Playback channels: Mono  
> Mono: Playback [on]  
> Simple mixer control 'VIO USB 2.0 IF ',0  
> Capabilities: pvolume pswitch penum  
> Playback channels: Front Left - Front Right  
> Limits: Playback 0 - 127  
> Mono:  
> Front Left: Playback 127 [100%] [0.00dB] [on]  
> Front Right: Playback 127 [100%] [0.00dB] [on]  
> Simple mixer control 'VIO USB 2.0 IF ',1  
> Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum  
> Playback channels: Mono  
> Limits: Playback 0 - 127  
> Mono: Playback 127 [100%] [0.00dB] [off]  
> root@MusicBox:~#

> root@MusicBox:~# aplay -l  
> \*\*\*\* List of PLAYBACK Hardware Devices \*\*\*\*  
> card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]  
> Subdevices: 7/7  
> Subdevice #0: subdevice #0  
> Subdevice #1: subdevice #1  
> Subdevice #2: subdevice #2  
> Subdevice #3: subdevice #3  
> Subdevice #4: subdevice #4  
> Subdevice #5: subdevice #5  
> Subdevice #6: subdevice #6  
> card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]  
> Subdevices: 1/1  
> Subdevice #0: subdevice #0  
> card 1: IF [VIO USB 2.0 IF], device 0: USB Audio [USB Audio]  
> Subdevices: 1/1  
> Subdevice #0: subdevice #0  
> root@MusicBox:~#

> root@MusicBox:~# cat /etc/asound.conf  
> pcm.!default {  
> type hw  
> card 1  
> }  
> ctl.!default {  
> type hw  
> card 1  
> }

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<div class="post-metadata">

### Author: ![kingosticks](https://avatars.discourse-cdn.com/v4/letter/k/858c86/32.png) [@kingosticks](https://discourse.mopidy.com/u/kingosticks)
#### Post date: [November 13, 2019, 10:18am UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/2 "2019-11-13T10:18:38Z")

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From first look it seems you’ve done everything right and it looks pretty good. But one: there appear to beare two mixer devices on that card, the 2nd of the two does claim to be ‘off’. Can you try toggling that in alsamixer?

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### Author: ![Mr\_P](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.mopidy.com/mr_p/32/1341_2.png) [@Mr\_P](https://discourse.mopidy.com/u/Mr_P)
#### Post date: [November 13, 2019, 10:36am UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/3 "2019-11-13T10:36:30Z")

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thanks for the reply - how exactly do I toggle that?

I don’t see many options apart from up/down for volume?

 ![56](https://canada1.discourse-cdn.com/flex036/uploads/mopidy/original/2X/1/14159c388e00c6bac2246a59e43060f23bce8fa2.png)

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<div class="post-metadata">

### Author: ![Mr\_P](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.mopidy.com/mr_p/32/1341_2.png) [@Mr\_P](https://discourse.mopidy.com/u/Mr_P)
#### Post date: [November 13, 2019, 10:52am UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/4 "2019-11-13T10:52:03Z")

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doh… it was pressing M which unmuted it…

I will see what this does and report back

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<div class="post-metadata">

### Author: ![Mr\_P](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.mopidy.com/mr_p/32/1341_2.png) [@Mr\_P](https://discourse.mopidy.com/u/Mr_P)
#### Post date: [November 13, 2019, 8:29pm UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/5 "2019-11-13T20:29:16Z")

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alright I now get sound so that’s awesome

problem now is when setsound.sh is run at startup it mutes again - is there a way to stop that happening?

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<div class="post-metadata">

### Author: ![kingosticks](https://avatars.discourse-cdn.com/v4/letter/k/858c86/32.png) [@kingosticks](https://discourse.mopidy.com/u/kingosticks)
#### Post date: [November 13, 2019, 8:55pm UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/6 "2019-11-13T20:55:07Z")

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It’ll always run so the easiest thing is to comment out / delete the call to it in /opt/musicbox/startup.sh

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<div class="post-metadata">

### Author: ![Mr\_P](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.mopidy.com/mr_p/32/1341_2.png) [@Mr\_P](https://discourse.mopidy.com/u/Mr_P)
#### Post date: [November 14, 2019, 7:37am UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/7 "2019-11-14T07:37:27Z")

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thanks that worked! ❤

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<div class="post-metadata">

### Author: ![jodal](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.mopidy.com/jodal/32/2564_2.png) [@jodal](https://discourse.mopidy.com/u/jodal)
#### Post date: [February 19, 2026, 11:46am UTC](https://discourse.mopidy.com/t/usb-dac-recognised-but-can-only-get-sound-from-analogue/3587/8 "2026-02-19T11:46:57Z")

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