Selenium C# – Mic Access Automation

Introduction

Automating microphone access in Selenium is super helpful for testing apps that need audio input. In this example, I'll show you how to simulate microphone access using Chrome's browser capabilities with fake media streams for testing.

Code Implementation

Below is a C# Selenium script that configures Chrome to simulate a microphone input and accesses a mic test page.

Example: Mic Access with Selenium in C#.

using Microsoft.VisualStudio.TestTools.UnitTesting;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Interactions;
using OpenQA.Selenium.Support.UI;
using SeleniumExtras.WaitHelpers;
using System.Globalization;

namespace SACSSAuto.QA.SeleniumPractice
{
    [TestClass]
    public class Selenium_81
    {
        /****
         *  Sample Code Definition :- Selenium - Mic Access
         *  Developed  By :- Pankaj Kumar
         *  Date of Creation :- 31-Jan-2025
         *  Project :- SACSSAUTO - C# [Web / Mobile / API]     *  
         */
        [TestMethod]
        public void Selenium_Test()
        {
            Console.WriteLine("Selenium - Mic Access");
            // Configure ChromeOptions to pass fake media stream
            ChromeOptions options = new ChromeOptions();
            options.AddArgument("use-fake-device-for-media-stream");
            options.AddArgument("use-fake-ui-for-media-stream");
            // Initialize Chrome WebDriver with options
            IWebDriver driver = new ChromeDriver(options);
            // Maximize the browser window
            driver.Manage().Window.Maximize();
            // Open the URL
            driver.Navigate().GoToUrl("https://www.vidyard.com/mic-test/");
            // Click the "Start Mic Test" button
            driver.FindElement(By.XPath("//button[normalize-space()='Start mic Test']")).Click();
            // Wait for 10 seconds
            Thread.Sleep(10000);
            // Wait for 5 seconds
            Thread.Sleep(5000);
            //Quit the driver
            driver.Quit();            
        }
    }
}

Steps Explained

1. Chrome Options Configuration

The script uses ChromeOptions to simulate a fake mic input, allowing the test to proceed without manual permission prompts.

2. Navigation and Interaction

The browser opens the Vidyard mic test page and clicks the "Start Mic Test" button.

3. Wait and Close

After waiting for the test duration, the browser session is closed.

Expected Outcome

• Opens the mic test site.

• Starts the mic test using fake audio input.

• Waits to simulate mic input duration.

• Closes the browser.

Conclusion

By using Chrome's fake media stream features, Selenium makes it easy to automate and test microphone access without needing real hardware or user input.