Errors running auditok

[Simpler1]

I'm on Linux Mint 17.2.

When I try to run "auditok", I get the following messages:

~/git_projects/auditok $ auditok
ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
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
1 0.00 5.00
2 5.00 10.00
3 10.00 15.00
4 15.00 20.00
^C5 20.00 20.60

Should I be concerned about any of these messages? It doesn't seem to be detecting any sound. It just outputs automatically every 5 seconds.

Any suggestions would be appreciated.

Thanks.

[amsehili]

Just ignore those messages, there isn't an easy way to get rid of them (follow this link to find out more about them).

Also you can redirect standard error to /dev/null (auditok [OPTIONS] 2> /dev/null)

It's detecting the whole input signal as an audio event (as chunks of 5 seconds because default value of -m is 5). This is because default value of energy threshold is too low for what you microphone is recording as silence. Use a higher valuer for energy (option -e) and/or reduce the input volume of the microphone from your system's settings.

If you have matplotlib installed, you can plot the signal and the energy threshold:

auditok -e 55 -M 7 -p

This will acquire 7 seconds of data and plot signal, threshold and detections once it's done.