[orca-list] Noise on Raspberry pi 3 B +

[raphael poitevin gmail com (Raphaël POITEVIN)]

Hello and happy new year!

I'm trying to use chain speech-dispatcher + espeak-ng + Orca on a
raspberry pi 3 B + on Raspbian buster and Mate.

Unfortunately, speech-dispatcher produce a noise when speaking and no
any word is understandable.

Test:

$ speaker-test
OK
$ espeak-ng "hello"
OK
$ spd-say "hello"
KO: noise
$ speaker-test
KO: noise
killall pulseaudio
$ speaker-test
OK
$ espeak-ng "hello"
OK
$ spd-say "hello"
KO: noise
$ speaker-test
KO: noise

I tried to use espeak-generic after adapting espeak-generic to
espeak-ng-generic: before installing Mate desktop, everything was OK.
After installing the desktop with tasksel, nomore speech.

Does anyone have experienced that situation?

Thanks for help.

Regards,
-- 
Raphaël POITEVIN
www.leclavierquibave.fr