if (localStream != null) {
 for (MediaStreamTrack track in localStream!.getAudioTracks()) {
 track.enabled = false; 
 }
}

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.29.0, on macOS 15.3.1 24D70 darwin-x64, locale
 es-ES)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 16.2)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2023.2)
[✓] IntelliJ IDEA Community Edition (version 2023年3月3日)
[✓] VS Code (version 1.97.2)
[✓] Connected device (2 available)
 ! Error: Browsing on the local area network for iPhone de Antonio. Ensure
 the device is unlocked and attached with a cable or associated with the
 same local area network as this Mac.
 The device must be opted into Developer Mode to connect wirelessly. (code
 -27)
[✓] Network resources
• No issues found!
antoniopenapena@MacBook-Pro-de-Antonio ~ % flutter doctor -v
[✓] Flutter (Channel stable, 3.29.0, on macOS 15.3.1 24D70 darwin-x64, locale
 es-ES) [1.268ms]
 • Flutter version 3.29.0 on channel stable at
 /Users/anton/development/flutter
 • Upstream repository https://github.com/flutter/flutter.git
 • Framework revision 35c388afb5 (2 weeks ago), 2025年02月10日 12:48:41 -0800
 • Engine revision f73bfc4522
 • Dart version 3.7.0
 • DevTools version 2.42.2
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
 [4,3s]
 • Android SDK at /Users/anton/Library/Android/sdk
 • Platform android-34, build-tools 34.0.0
 • Java binary at: /Applications/Android
 Studio.app/Contents/jbr/Contents/Home/bin/java
 This is the JDK bundled with the latest Android Studio installation on
 this machine.
 To manually set the JDK path, use: `flutter config
 --jdk-dir="path/to/jdk"`.
 • Java version OpenJDK Runtime Environment (build
 17.0.9+0-17.0.9b1087.7-11185874)
 • All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 16.2) [2,5s]
 • Xcode at /Applications/Xcode.app/Contents/Developer
 • Build 16C5032a
 • CocoaPods version 1.16.2
[✓] Chrome - develop for the web [254ms]
 • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2023.2) [252ms]
 • Android Studio at /Applications/Android Studio.app/Contents
 • Flutter plugin can be installed from:
 🔨 https://plugins.jetbrains.com/plugin/9212-flutter
 • Dart plugin can be installed from:
 🔨 https://plugins.jetbrains.com/plugin/6351-dart
 • Java version OpenJDK Runtime Environment (build
 17.0.9+0-17.0.9b1087.7-11185874)
[✓] IntelliJ IDEA Community Edition (version 2023年3月3日) [250ms]
 • IntelliJ at /Applications/IntelliJ IDEA CE.app
 • Flutter plugin version 78.4.2
 • Dart plugin version 233.15123
[✓] VS Code (version 1.97.2) [51ms]
 • VS Code at /Applications/Visual Studio Code.app/Contents
 • Flutter extension version 3.104.0
[✓] Connected device (2 available) [7,5s]
 • macOS (desktop) • macos • darwin-x64 • macOS 15.3.1 24D70 darwin-x64
 • Chrome (web) • chrome • web-javascript • Google Chrome 133.0.6943.127
[✓] Network resources [574ms]
 • All expected network resources are available.
• No issues found!