Arch Linux

astrosof

Member

Registered: 2021-01-29

Posts: 3

MATLAB AudioToolBox app fails

Hi everyone,

I´m currently running MATLAB and I cannot launch a written application that uses AudioToolBox for my homework, on Windows 10 everything is fine I just launch the app and it works but on Linux I get these errors:

ALSA lib pcm_dsnoop.c:638:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1075:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_dmix.c:1075:(snd_pcm_dmix_open) unable to open slave
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1811
Error while evaluating TimerFcn for timer 'timer-2' 
PortAudio Error: Unanticipated host error
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1811
Error while evaluating TimerFcn for timer 'timer-2' 

My speaker and microphone work fine with any other activity.

Can anybody help me sort this out?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,337

Re: MATLAB AudioToolBox app fails

What are you using for audio backend needs? If pulseaudio make sure pulseaudio-alsa and alsa-plugins are installed.

astrosof

Member

Registered: 2021-01-29

Posts: 3

Re: MATLAB AudioToolBox app fails

Yes I do use pulseaudio and I have both pulseaudio-alsa and alsa-plugins installed