# FMOD studio API - Problem initializing USB sound card
**URL:** https://qa.fmod.com/t/fmod-studio-api-problem-initializing-usb-sound-card/13927
**Category:** FMOD Engine
**Created:** [June 7, 2018, 4:33pm UTC](https://qa.fmod.com/t/fmod-studio-api-problem-initializing-usb-sound-card/13927 "2018-06-07T16:33:06Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@SimonKBR](https://qa.fmod.com/u/SimonKBR)
#### Post date: [June 7, 2018, 4:33pm UTC](https://qa.fmod.com/t/fmod-studio-api-problem-initializing-usb-sound-card/13927/1 "2018-06-07T16:33:06Z")
Hi,
I’m working with the FMOD studio API on a raspberry pi 3 B: linux api version 1.10.05
When I use the built-in sound output everything works fine. When I set my USB soundcard (ESI gigaport HD+) as the systems default sound output I get FMOD error 51 – Error initializing output device. The soundcard works fine outside of the FMOD API.
I generated a log file, which shows the specific error: [ERR] OutputALSA::init : snd\_pcm\_hw\_params\_set\_rate returned -22 = Invalid argument.
I realise that this could be a really device/driver specific problem but I have no clue what this error means, could anyone point me in the right direction?
LOG:
`
[LOG] System::create : Header version = 1.10.05. Current version = 1.10.05.
[LOG] Manager::init : maxchannels = 256 studioflags = 00000000 flags 00000000 extradriverdata (nil).
[LOG] SystemI::init : Initialize version=11005 (94661), maxchannels=256, flags=0x00020000
[LOG] FMOD_OS_Init : Detected Neon instruction support, will use Neon optimized mixing and resampling.
[LOG] SystemI::setOutputInternal : Setting output to ‘FMOD ALSA Output’
[LOG] OutputALSA::registerLib : Loaded ALSA version 1.1.3.
[LOG] OutputALSA::enumerate : Found device NAME:null IOID:(null).
[LOG] OutputALSA::enumerate : Found device NAME:default IOID:(null).
[LOG] OutputALSA::enumerate : Found device NAME:sysdefault:CARD=ALSA IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:dmix:CARD=ALSA,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:dmix:CARD=ALSA,DEV=1 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:dsnoop:CARD=ALSA,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:dsnoop:CARD=ALSA,DEV=1 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:hw:CARD=ALSA,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:hw:CARD=ALSA,DEV=1 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:plughw:CARD=ALSA,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:plughw:CARD=ALSA,DEV=1 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:sysdefault:CARD=HD IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:front:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:surround21:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:surround40:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:surround41:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:surround50:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:surround51:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:surround71:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:iec958:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:dmix:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:dsnoop:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:hw:CARD=HD,DEV=0 IOID:Output.
[LOG] OutputALSA::enumerate : Found device NAME:plughw:CARD=HD,DEV=0 IOID:Output.
[ERR] OutputALSA::init : snd_pcm_hw_params_set_rate returned -22 = Invalid argument.
[LOG] SystemI::close : Closed.
[LOG] LiveUpdate::release :
[LOG] LiveUpdate::reset : Reset connection (reason Disconnected)
`
Kind regards,
Simon
---
### Author:  [@richard\_simms](https://qa.fmod.com/u/richard_simms)
#### Post date: [June 8, 2018, 6:06am UTC](https://qa.fmod.com/t/fmod-studio-api-problem-initializing-usb-sound-card/13927/2 "2018-06-08T06:06:17Z")
Hi Simon,
In my test of 1.10.05 on Linux it works as expected. Could you please check that you have the x86 version of ALSA installed as well as the x64?
[https://www.fmod.com/resources/documentation-api?page=content/generated/platform\_linux/basics.html#/](https://www.fmod.com/resources/documentation-api?page=content/generated/platform_linux/basics.html#/)
Thanks,
Richard
---
### Author:  [@SimonKBR](https://qa.fmod.com/u/SimonKBR)
#### Post date: [June 8, 2018, 3:29pm UTC](https://qa.fmod.com/t/fmod-studio-api-problem-initializing-usb-sound-card/13927/3 "2018-06-08T15:29:15Z")
> [@](#):
>
> Hi Simon,
>
> In my test of 1.10.05 on Linux it works as expected. Could you please check that you have the x86 version of ALSA installed as well as the x64?
>
> [https://www.fmod.com/resources/documentation-api?page=content/generated/platform\_linux/basics.html#/](https://www.fmod.com/resources/documentation-api?page=content/generated/platform_linux/basics.html#/)
>
> Thanks,
> Richard
Thanks for your reply. I looked further into the ALSA settings.
ALSA version is 1.1.3 (as seen in de log).
I checked the ALSA driver version: Advanced Linux Sound Architecture Driver Version k4.14.34-v7+.
The problem has been solved. I changed some settings relevant for my USB sound card in the ALSA config file and selected a different output driver using System::setDriver.
---
### Author:  [@richard\_simms](https://qa.fmod.com/u/richard_simms)
#### Post date: [June 11, 2018, 11:53pm UTC](https://qa.fmod.com/t/fmod-studio-api-problem-initializing-usb-sound-card/13927/4 "2018-06-11T23:53:12Z")
Good to hear you were able to resolve the issue, Simon. Please let us know if you need any further assistance.
Thanks,
Richard
---
### Author:  [@granjow](https://qa.fmod.com/u/granjow)
#### Post date: [February 11, 2020, 8:49pm UTC](https://qa.fmod.com/t/fmod-studio-api-problem-initializing-usb-sound-card/13927/5 "2020-02-11T20:49:25Z")
I just stumbled over the same error message. Running the application as root fixed the issue.
For the record:
I am running it on a Raspberry Pi 3 B+ on Raspbian Stretch, the output device is a ESI GIGAPORT HD+. To get the device as default output, I needed the following settings:
`/etc/asound.conf`
```
pcm.!default {
type plug
slave {
pcm "hw:1,0"
}
}
ctl.!default {
type hw
card 1
device 0
}
```
`/usr/share/alsa/alsa.conf`
```
defaults.ctl.card 1
defaults.pcm.card 1
defaults.pcm.device 0
```