concurrent audio and distortion

[0x1stvan]

When integrating Dialogflow with Asterisk for voice interactions, there an issue where audio playback becomes distorted. This occurs specifically when a new transcript is added while the previous Dialogflow audio is still playing. The old audio continues to play concurrently with the new audio, resulting in an overlap that causes distortion.

[danjenkins]

Hey @0x1stvan - Is this something you can make a pull request for? Need to clear the buffer when receiving new audio from dialogflow to clear down the previous unplayed audio - this isn't something we're working on currently unless someone wants to pay for consultancy on it.

[0x1stvan]

Hey @0x1stvan - Is this something you can make a pull request for? Need to clear the buffer when receiving new audio from dialogflow to clear down the previous unplayed audio - this isn't something we're working on currently unless someone wants to pay for consultancy on it.

Hi @danjenkins , thanks for the quick reply. Tried to fix it, but i'm not really familiar with nodejs, if you can add me a hint how to do it i can create a pull request if working.

Can you please take a quick look to this issue also?
#20

It looks like this bug still there, setting singleutterance to true causes crash

[danjenkins]

Yeah I need to look into the single utterance thing but ultimately I haven't looked at this app in a while.

On how to clear down the audio....

https://github.com/nimbleape/asterisk-dialogflow-rtp-audioserver/blob/master/lib/DialogFlowConnector.js#L178

Thats holding all of the previous timeouts but its a local variable to that function... so make it attached to the class so that you can then call

this.timeouts.forEach((ref) => {
                        clearTimeout(ref);
                    });

On line 178. instead of making an empty array you'll be clearing down the set of timeout refs

[0x1stvan]

Thanks @danjenkins , added PR #39, can you check it?