On Wed, Mar 17, 2021 at 6:52 PM mayamatakeshi <mayamatakeshi@gmail.com> wrote:

Hi,
I'm trying play_and_detect_speech with an ESL app but START-OF-INPUT doesn't interrupt the TTS being played.
Is this expected?
(https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+play_and_detect_speech is not clear about it)
Or maybe I need to set some channel variable for this to work.

Hi,

My app is a fork of https://github.com/plivo/plivoframework

I debugged FS code and found the cause of the problem:

I verified that the DETECTED_SPEECH events (including the one with Speech-Type begin-speaking) were not being fired.

This was because my app was not setting this variable:

https://freeswitch.org/confluence/display/FREESWITCH/fire_asr_events

Then I set fire_asr_events=true

but still the prompt didn't get interrupted by speech.

Then I checked how FS code was fetching (dequeuing) events and I realized it checks for divert_events.

Then I changed my app to send

divert_events off

in the ESL socket

and after that it worked and FS stopped the prompt upon speech start.

However, it is not stopping the prompt when a DTMF digit is received (it was already this way before I did the changes).

So things are better but still there is something amiss.