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Questions tagged [echo-cancellation]

40 questions
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Disable input/output AGC from RemoteIO and VPIO on iOS

CoreAudio is always a mystery due to lack of documentations. Recently I hit some stone again: In my program, I invoke RemoteIO and VoiceProcessingIO (VPIO) back and forth, and also change AVAudiosession in between. I tried to turn off AGC on VPIO…
Kitetaka
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pactl load-module module-echo-cancel aec_method=webrtc Failure: Module initialization failed

I'm working on an embedded linux device which has mic and should communicate with another device using webrtc and running on a Qt QML application. during the call I have an echo that should be cancelled. I searched on the internet and I found that…
iheb meddeb
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Acoustic echo cancellation in C# client

I have a dispatcher's desk (client) and radio state (server) with speakers and microphones. These communicate with RTP protocol. They send and recieve data and play their immediately. My problem is that speakers must be loud. Therefore, echo is…
Dönci Fekete
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Echo Cancellation Support in iOS Using AudioQueue

I need to delete the echo noise within my audio signal. To create the communication channel I used AudioQueue for my app as reported in the AQRecorder class from the SpeakHere:…
MD. AMT
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Echo cancellation in pjsua2 in android not working.(Not with webrtc.)

I am trying to eliminate echo in my voip call app. I'm using pjsua2 library. I tried the following code in the "MyApp" class provided in pjsua2 sample app. /* Echo cancellation */ try { ep.audDevManager().setEcOptions(128, 0); }…
Rounak
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iOS Remove Particular Sound from a video

I have an application which plays some audio and also records a video+audio while that sound is playing. I would like to figure out a way to process the video so that the audio that was picked up by the microphone is removed from the resulting…
Liron
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Mic/Speakers Audio Feedback in VLC API

I'm building a Webcam recording application with Qt 5.3 using vlc-qt, the problem is while previewing Audio/Video high feedback/noise and echo starts and gets higher, I've been googling and found it's the effect called Larsen's effect and how it's…
Marware
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(How) Can I get a stream of all sounds recorded from the microphone that my computer did not produce? (using PulseAudio or something else)

I've been playing around with some speech-to-text and text-to-speech systems, and am running into the problem that when the computer makes sounds that it can recognize, it starts taking commands from itself. To avoid this, I'd like a stream of all…
Alan
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Echo Cancellation: Microphone as Voice input, MP3 as Output

I'm currently working on an Application which is observing the microphone's input, but at the same time has to be able to play a specific MP3 song via Loudspeakers. The problem I'm currently facing is that as soon as I play the MP3 back, the…
damian
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Noise cancellation setup - combining the microphone's signals intelligently

I built a noise cancellation setup with two microphones and two different microphone preamplifiers that go to two different channels of a stereo recording. Here is a sample http://filestore.to/?d=U5FN2IH96K I tried char ergebnis[80]; …
Brutus Cruciatus
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