German sampled speech demo from the "Ma Baker" single by Boney M.
The only info I can find on the Chatterbox is in a link below and I'm not sure if that is correct as CPC-POWER state it is a utility.
https://www.youtube.com/watch?v=P0swPaIturk (https://www.youtube.com/watch?v=P0swPaIturk)
Links:
https://www.cpc-power.com/index.php?page=detail&num=8853 (https://www.cpc-power.com/index.php?page=detail&num=8853)
https://cpcrulez.fr/demostestDO_the_story_of_ma_baker.htm (https://cpcrulez.fr/demostestDO_the_story_of_ma_baker.htm)
https://www.cpc-power.com/index.php?page=staff&lenom=The%20Cracking%20Crew (https://www.cpc-power.com/index.php?page=staff&lenom=The%20Cracking%20Crew)
https://en.wikipedia.org/wiki/Ma_Baker (https://en.wikipedia.org/wiki/Ma_Baker)
http://www.computinghistory.org.uk/det/43824/William-Stuart-Systems-Chatterbox/ (http://www.computinghistory.org.uk/det/43824/William-Stuart-Systems-Chatterbox/)
Not emulated - original hardware and software.
Please note that the aspect ratio for this YouTube video is 16:9 but the CPC monitor
has an aspect ratio of 4:3 so you may wish to adjust your viewing device accordingly.
My ears!!!