How to stop Audio Loopback (echo) in Electron js

[zardamhussain]

My current Setup

const call = Daily.createCallObject({ 
  startVideoOff: true, 
  dailyConfig: {
    avoidEval: true
  }
});

call.updateInputSettings({
  audio: {
    processor: {type: "noise-cancellation"},
    settings: {
      deviceId: "default"
    },

  }
})

await call.join({ 
  url: 'https://dubit.daily.co/xxxxxxxxx', 
  subscribeToTracksAutomatically: false, 
});

[mattieruth]

Hi @zardamhussain -- I just did a basic test and was not able to reproduce any loopback. Can you describe your setup a bit more? Are you testing between two electron apps? or a web page and an electron app? When you hear the loopback, is it in the electron app or is it the other participant hearing the electron participant echo?

[zardamhussain]

Hello @mattieruth,

I conducted a test on web page and an Electron application. If you mute yourself in the browser and then speak, you will hear an echo of your voice.

[mattieruth]

Thanks. I am still unable to reproduce this issue. I am running our electron demo app using this branch to add the noise-cancellation and joining the same call in a browser with audio off so that only the electron app has audio on. I do not hear any echo.

When you join in a browser, are you using a custom app or prebuilt? If a custom app, can you try using the room url to join directly with our prebuilt? Also, what daily-js version are you using in your electron app?

[zardamhussain]

If you are using earphones, please remove them and use your system's speaker and microphone instead. I am using version 0.75.2 of Daily-js. When I tested your Electron demo, I encountered an echo issue

[mattieruth]

Hi @zardamhussain -- Thanks for reminding me to use system speakers 🤦‍♀ -- I can reproduce but can not figure out the source of the issue. The track constraints have echoCancellation turned on by default. I've tried enforcing that and I've checked that the resulting tracks show echoCancellation as on (call.participants().local.tracks.audio.persistentTrack.getSettings()). It appears to be an electron issue. I upgraded my electron to the latest and still got the issue. I then tried to enable various chromium flags to see if I could get rid of the issue and was not able to. Here's the kicker, I finally tried setting echoCancellation: false and it helps :mindblown .

I started filing an issue on Electron but I'm struggling to get a minimal example working and showing the issue. I think, in the meantime, maybe just try turning echoCancellation off and see if that helps:

call.updateInputSettings({
  audio: {
    processor: {type: "noise-cancellation"},
    settings: {
      deviceId: "default",
      echoCancellation: false,
    },

  }
})

side note: you can configure your inputSettings in your call properties:

const call = Daily.createCallObject({ 
  startVideoOff: true,
  inputSettings: {
    audio: {
      processor: {type: "noise-cancellation"},
      settings: {
        deviceId: "default",
        echoCancellation: false,
      },
    }
  },
  dailyConfig: {
    avoidEval: true
  }
});