Mycroft Community Forum

Changing wakeword response bug

Hi, so I wanted to change the response mycroft makes when activated by the wakeword. I saw this post which was very helpful:

I didn’t want to reply there because I don’t know how acceptable it is to revive dead posts or not, so I’m making a new one (lmk if that’s what I should have done or no)

Anyways, so I’m trying to use this sound file as my wakeword response:

So here were my steps:

cd /home/pi/mycroft-core/mycroft/res/snd/


mkdir old_files

mv start_listening.wav old_files/

mediainfo GLaDOS_taunt_small_wave02.wav 

This was the mediainfo output:

Complete name                            : GLaDOS_taunt_small_wave02.wav
Format                                   : Wave
File size                                : 250 KiB
Duration                                 : 2 s 899 ms
Overall bit rate mode                    : Constant
Overall bit rate                         : 706 kb/s
Writing application                      : Lavf54.59.106

Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : 1
Duration                                 : 2 s 899 ms
Bit rate mode                            : Constant
Bit rate                                 : 705.6 kb/s
Channel(s)                               : 1 channel
Sampling rate                            : 44.1 kHz
Bit depth                                : 16 bits
Stream size                              : 250 KiB (100%)

Format looks correct except only 1 channel, so not stereo. So I converted to stereo:

ffmpeg -i GLaDOS_taunt_small_wave02.wav -ac 2 GLaDOS_taunt_small_wave02_stereo.wav

mv GLaDOS_taunt_small_wave02.wav old_files/
mycroft-config reload
mycroft-start all restart 

When I do all this, I just get no wakeword response. Mycroft still works fine, just no sound when it’s woken up. When I move the old files back to where they were and keep all my changes in the old_files/ directory, I’m able to get the original wakeword response back. So I feel like it’s the format of the file? But it’s wav-format, 16-bit, stereo, 44100 Hz sampling rate. Any ideas? I didn’t have something to play the .wav natively but I did convert to mp3 and was able to play it through my pi’s speakers using mpg123, so it doesn’t seem corrupted or anything.

Edit: Almost forgot, this is using Picroft 21.2.1 on a Raspberry pi 4 Model B. I did also try checking the mediainfo of the original start_listening.wav, which had a 48khz sampling rate, so I tried changing that with ffmpeg as well with the same results.



Got it! Went digging around for when the file was referenced and realized in the configuration file start_listening.wav is referenced directly, not just looking for the .wav in the path. So I changed the name in the configuration file and it’s working now!

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