REF: ReSpeaker 6-Mic Circular Array Kit for Raspberry Pi**
We are using ReSpeaker 6-Mic Circular Array Kit for Raspberry Pi for making a phone call. The other side hears major echo from ReSpeaker 6-Mic device. We use PJSIP for setting up the call and there is a VOIP gateway to covert VoIP call into a PSTN call. These details are not crucial.
Crucial is that We are looking for ways to remove the echo our called party hears on their phone, Does ReSpeaker 6-Mic Circular Array Kit for Raspberry Pi support any type of Echo Cancellation.
Thanks for your help.
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Hi,
Can you tell us more details about how PJSIP captures audio stream from the microphones? From the default device or pulseaudio or aloop device? How many channels does PJSIP capture?
I am trying to accomplish the same with ReSpeaker 6-Mic Circular Array Kit for Raspberry Pi. A python application leverages pyaudio + portaudio and libasound to access microphone + consume output to detect discrete activities. If we had the ability to enable Echo Cancellation and maybe even Beam Forming, I think the recognition accuracy of our software would greatly improve.
Has anyone been able to actualize Echo Cancellation with ReSpeaker 6-Mic Circular Array Kit for Raspberry Pi? What about the 4-Mic Array? How did you do it?
