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I installed Zoiper from the AUR and my audio then immediately started to sound like crap. It sounds like the microphone is always open and I can hear myself through my headphones when I talk. It also picks up some background noise, so I can also hear a faint echo of the background noise in my house. I uninstalled Zoiper and all of the other dependencies it installed, but the damage seems to be done.
I'm using Alsa/PulseAudio as suggested by the Wiki. I don't even know where to begin troubleshooting something like this, so any help is appreciated.
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I recall the same problem after viber. Please try running alsamixer in a terminal and mute the microphone.
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That fixed the majority of the problem. I can't hear myself anymore! However, when I use Mumble, I use the voice activity feature to activate the mic. In the audio input settings, the activity it detects hovers right around where I set it to activate even though it's not picking up any noise. Before Zoiper, it would pick up a little bit, but it would hover around the bottom. For some reason it now thinks there's a bunch of noise.
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