AudioRtpReceiver::OnSetVolume: No audio channel exists.

[jesusvalenzuelar]

This is what's happening:
When trying to implement or include opentok library into an angular application (v8) I am getting this error:

[19260:0705/181920.936:ERROR:rtp_receiver.cc(121)] AudioRtpReceiver::OnSetVolume: No audio channel exists.

This message appears from starting the app.

Notes:

• This is an electron.js app with an embedded angular application.
• I am able to do all the one-2-one live chat session and the result of the recording is fine, it has video and audio.
• There is no sound on the electron app

environment versions:

{ node: '12.0.0',
  v8: '7.3.492.27-electron.0',
  uv: '1.27.0',
  zlib: '1.2.11',
  brotli: '1.0.7',
  ares: '1.15.0',
  modules: '70',
  nghttp2: '1.34.0',
  napi: '4',
  llhttp: '1.1.1',
  http_parser: '2.8.0',
  openssl: '1.1.0',
  icu: '63.1',
  unicode: '11.0',
  electron: '5.0.6',
  chrome: '73.0.3683.121' }

Steps to reproduce:

1. Create angular app
2. add electron to angular app
3. add opentok/client to angular app
4. reference it on any component

[jesusvalenzuelar]

This is the package.json file:

{
  "name": "[YOUR APPLICATION NAME]",
  "version": "1.0.0",
  "description": "[YOUR BASIC APPLICATION DESCRIPTION]",
  "main": "index.js",
  "scripts": {
    "build-ng": "ng build --prod",
    "start-ng": "ng serve --prod",
    "start-electron": "ng build --prod && electron .",
    "dist": "ng build --prod && electron-builder"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~8.0.0",
    "@angular/common": "~8.0.0",
    "@angular/compiler": "~8.0.0",
    "@angular/core": "~8.0.0",
    "@angular/forms": "~8.0.0",
    "@angular/http": "^7.2.15",
    "@angular/platform-browser": "~8.0.0",
    "@angular/platform-browser-dynamic": "~8.0.0",
    "@angular/router": "~8.0.0",
    "@ngx-loading-bar/core": "^4.2.0",
    "@ngx-loading-bar/http-client": "^4.2.0",
    "@opentok/client": "^2.16.1",
    "classlist.js": "^1.1.20150312",
    "electron-log": "^3.0.6",
    "moment": "^2.24.0",
    "moment-timezone": "^0.5.25",
    "ngx-electron": "^2.1.1",
    "rxjs": "~6.4.0",
    "tslib": "^1.9.0",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.800.0",
    "@angular/cli": "~8.0.2",
    "@angular/compiler-cli": "~8.0.0",
    "@angular/language-service": "~8.0.0",
    "@types/jasmine": "~3.3.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/moment": "^2.13.0",
    "@types/moment-timezone": "^0.5.12",
    "@types/node": "^12.0.8",
    "codelyzer": "^5.0.0",
    "electron": "^5.0.3",
    "electron-builder": "^20.43.0",
    "jasmine-core": "~3.4.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.1.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.15.0",
    "typescript": "~3.4.3"
  },
  "build": {
    "appId": "[YOUR_ID]",
    "mac": {
      "category": "[YOUR_CATEGORY]"
    },
    "nsis": {
      "createDesktopShortcut": "always"
    },
    "dmg": {
      "contents": [
        {
          "x": 110,
          "y": 150
        },
        {
          "x": 240,
          "y": 150,
          "type": "link",
          "path": "/Applications"
        }
      ]
    },
    "linux": {
      "category": "Audio"
    }
  }
}

[jesusvalenzuelar]

Any update?

[msach22]

@jesusvalenzuelar Thanks for filing this issue. This looks like an issue with Electron and WebRTC combination. I've gone ahead and commented on the Electron issue on how to reproduce: electron/electron#11112

[jesusvalenzuelar]

@msach22 Thank you.

[SamirNEddine]

Hello
Does it mean that we cannot use Electron with OpenTok?

[msach22]

@SamirNEddine Electron is a supported endpoint by OpenTok - this is just just something we see in the logs although I haven't seen it causing any issues.

[PxlLoewe]

I have the same issure with peerJS and webrtc in Electron

[ngohuytrieu]

I am having the same issue here, I am stuck at this for hours, any luck guys?

[LeonErath]

Have the same issue with v13.1.2 when using sip.js (which uses webrtc).

EDIT: Seems to be fixed in future versions. Just tested it with the newest alpha version (15.0.0-alpha-6) and the error was gone 🤔