Wake word recording in slow motion

Help
1

Hello!
Need help for a beginner.

Rhasspy works correctly except for one thing.
If I call Rhasspy via wake word, then there is no conversion to text. If I call it through the Wake Up button, then everything is correct.

In addition, if I listen to the recording after calling wake word, then it plays in slow motion.
I’ve tried several wake word integrations and always have this problem.
If I use the Wake Up button, then Play Recording sounds correct!

I ask for help!
Thanks!

UPD.
After a few experiments:
If I delete all links to “WAV files to play when Rhasspy wakes up and is finished recording a voice command”, then everything starts working correctly.
Replacing these files with others does not help - again slow motion.

3

What module and device are you using for recording and for playback?
Are you using the dsnoop device by any chance?

4

If you try to record from the command line (might need to close rhasspy) with 16k sample rate, do you get warnings like this:

root@16a7062fdb25:~# arecord -d 10 -D hw:CARD=LX3000,DEV=0 recording2.wav -V mono -f S16_LE --rate 16000
Recording WAVE 'recording2.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
Warning: rate is not accurate (requested = 16000Hz, got = 44100Hz)

or

root@16a7062fdb25:~# arecord -d 10 -D dsnoop:CARD=LX3000,DEV=0 recording2.wav -V mono -f S16_LE --rate 16000
Recording WAVE 'recording2.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
Warning: rate is not accurate (requested = 16000Hz, got = 48000Hz)
5

Hello! Thanks for answer!

root@a0457e39c230:/# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: realtekrt5651co [realtek,rt5651-codec], device 0: ff890000.i2s-rt5651-aif1 rt5651-aif1-0 []
  Subdevices: 0/1
  Subdevice #0: subdevice #0

root@a0457e39c230:/# arecord -d 10 -D hw:CARD=0,DEV=0 recording2.wav -V mono -f S16_LE --rate 16000
Recording WAVE 'recording2.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
arecord: set_params:1345: Channels count non available

root@a0457e39c230:/# arecord -d 10 -D hw:CARD=0,DEV=0 recording2.wav -V mono -f S16_LE --rate 16000 -c2
Recording WAVE 'recording2.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Stereo
#+                                                 | 01%^CAborted by signal Interrupt...
6

Try “-c1” does it work too?
I think rhasspy expects a mono input while your device gives a stereo one. So you get twice as much samples.
Also try “plughw” device instead of “hw”.
Are you on the right device? Why would a mic be stereo?

7

With -c1 i have

arecord: set_params:1345: Channels count non available

I use friendlyarm RK3399 with Ubuntu 18.04 with stereo mic connected via jack